i had an issue with my check engine light before and had my ECM replaced about 3 months ago. It also seems as though the engine is pulling extra hard. They have not been > replaced as long > as I have owned the car (6 years). Then just buy a few new ignition coils and replace the ones that are shot, and keep 2 in your trunk. To check the oil, the engine needs to be OFF. I stopped the car 10-15 min. Automatic transmissions help the vehicle to change gears with the help of computerized programs. The car shakes hard at idle, and has very low power going from complete stop through the gears. the light flashed when I accelerated and when I slow down it goes off. steep downhill) the whole car starts to shake while brakes are applied even modestly. Bring it to a shop to be checked. When the "Check engine" light is on, a code scanner can be used to identify the cause more accurately. Drove about 1 km, stopped for a red light and then the engine started sputtering, rpm up and down and eventually it shut down. Troubleshooting : Verify test failure, found fault does exist, in addition discovered oil warning light on the dashboard lights. If your car shakes before you put it in gear or while you're sitting at a light, something related to the engine is broken. I was coming out of a stop and my car started shaking when I would try to accelerate, and running poorly. So do I just change cylinder 2 and everything will be back to normal? My truck shakes badly when im going from 40 to 50. The possible problem that has me concerned is the severe shake the engine has at idle. If I put it in neutral, it stops shaking. if you get up to speed and let off the gas, the shaking stops and the car rides smooth. I replaced the fuel filter and that did nothing. You're driving along in your car and suddenly your Check Engine Light comes on. Signs of Problems with Your Car's Muffler car starts to shake when idling or accelerating and my car is losing power when driving up hill, I live in the mountains. 3 mins later the Engine Management Light started flashing. Re: Jerking When Trying To Accelerate My 1998 Honda Accord by nex ( m ): 6:52pm On Jul 21 , 2009. At idle it sputters and sounds more like a little boat engine to me. Why does the check engine light flash when accelerating and the car sputters and jerks? Answer A flashing check engine light means that something serious is wrong with the vehicle and you should. When i press the throttle to accelerate during travelling, the car will jerk again, and does not accelerate instantly as normal. I have the car listed above SRT-8. Restart the engine after 2 minutes to reset the engine management system. A diagnostic tool is required to learn what tripped the warning light. Put a code reader on it, came back with P170. With a flashing CEL you have a serious misfire and are potentially putting raw fuel into. Got back in and drove another 2 miles. It also shakes a little during acceleration and when I accelerate harder, the check engine light. I haven't changed the trans fluid or filter, & don't know the car's previous history. Leave a Reply Cancel. It was OK when giving gas, although still not right, but the idle was horrible and the car stalled out a few times at a red light, also really bad start from a go. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. Hey Tyler, thanks for the A2A :) A flashing Check Engine Light (CEL) is not good. What do you do when a check engine light comes on? What do you when you check engine light comes on? Well, 1st of all, the engine is no doubt going to be there, so there is no reason to check the engine bay. When driving the car at acceleration my car will jerk and the service Traction Control light will come on along with the check engine and then disappear. I bought the certified car at 50k and at 70k miles, right after the warranty ended - check engine light came on and the dealership said it will cost $8k due to camshafts to repair!! they even suggested that I should consider trading the car in! keep in mind I still owe $28k so that option is out! since then the check engine light still on even after I got it repaired at a local/affordable. My check engine light is on and it often shakes when stopped. Cars are always over taking me, it's embarrassing. My guess is the Coil is going bad. The truck has the check engine light on, but when I start it and accelerate it I get a wrench warning light and it starts failing and loses power, and the AC stops working. Auto mechanics say they get frequent calls from customers saying their car is vibrating. When you see the check engine light it doesn't necessarily mean you need to pull the car over to the side of the road and call a tow truck. It also seems as though the engine is pulling extra hard. 8L 42,000 miles, no modifications, change feud filter at 30,000 mile when I push the gas pedal; I really have to mash it to get the car to accelerate, the Engine feels like it top out about 4000RPM, if you continue to push the pedal, the Engine Check Light will flash until you back off the gas, the dealer guy put in the. Feb 2017 engine light they said same faults and manifold pressure sensor failed. Instructions on how to troubleshoot Check Engine Light / Check Engine light. Moisture gathering in your car’s distributor cap can cause your car to jerk while you are accelerating, as this will cause your engine to misfire. Car shakes when accelerating, check engine light flashes then stays on. Made it less than 100 feet and the car wouldn't accelerate and the check engine light came on. After a few months, braking at high speeds (i. I have a 2004 Honda Accord. Shakes are consistent over 40mph while going straight on mainly flat roads or uphill. When in neutral, its fine. The check engine light is not on. --engine frequently revs up to 1600rpm when in "park" and goes down to 900rpm in "drive. Within two to three days of normal driving, the check engine light will reset itself (CEL will turn off). My car shakes occasionally (when idling and accelerating). It also didn't appear to be leaking and fluids and it never ran hot. I have K-pro, and just recently installed a Greddy TI-C exhaust. Leaning or pulling: It's scary when your car pulls in a. A flashing Check Engine Light indicates that your vehicle's engine is in serious trouble, whereas a steadily lit one means less urgent service is needed. However ever since my car is over revving whenever I accelerate but it doesn't gain speed. skipping/hesitation/shaking occurs only when accelerating and at all gears, The check engine light has not come on at all. I really need to get it fixed asap. I tried to take it to my local toyota but they were taking to long and I wasted time and money renting a car because they said they couldnt get the check engine light to come on so i picked up my car which the light WAS on when I picked it up and I would like to take it to someone else who knows what they are doing. Common Causes of Check Engine Light Car Shakes When Accelerating 1. Most of the errors would give you a check engine light, so it might just be a matter of time till it comes on. The code came back as needing to replace the crankshaft sensor, and the oxygen sensor. Check engine light has been on. Usually when I'm at a stop, it idles at just under 1k RPMs. Its a 2012 jeep patriot manual and the check engine light was flashing. The entire XC90 vibrates, even when under light acceleration, but even more under hard acceleration. A steady light usually indicates minor problems, while the check engine light flashes only when there is a serious problem with your car. Broken Motor Mounts Can Cause Severe Engine Shaking and Should Be Fixed. I pulled over and checked out the engine, but didnt see anything. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes. I haven't changed the trans fluid or filter, & don't know the car's previous history. after a while it accelerates to a higher cruising speed, then it's OK again. I would have the check engine light checked; just because it isnt on doesn't mean there isn't a code in the system. so i get home do some research online then head back outside to check the car again since its cool down and of course the ticking is gone but the check engine light is still on. It flashes for maybe about 5-10 seconds and then stays lit. Often, it will come back to a "lean" condition," meaning that there's either not enough fuel or too much air going in. which would case a heavy vibration on acceleration, because your exhaust is clogged and the motor is getting to much back pressure. Recently I started the car up and noticed the engine was shaking very roughly. if you get up to speed and let off the gas, the shaking stops and the car rides smooth. The often misunderstood check engine light or "service engine soon" message can mean many different things. It starting working again without me doing anything when it got down to about 20 MPH and I made it the last 3 blocks home. When the cylinder does not work as expected or it does not pass the fuel and air every time the crankshaft turns, it misfires. check engine light on, shakes, runs rough, loudly when i accelerate in the rec. 2002 Toyota Tacoma --- same issue this morning as I was going to work. What does it mean? Check Engine Light, Check Engine Soon Light, Service Engine Soon Light, Engine Light, Engine Management Light, "whatever" you want to call it, simply means that your vehicle's computer system has detected a problem. Car started fine. A flashing check engine light means stop driving the car, a check engine light on steady, means proceed with caution. A car engine requires the right air to fuel ratio in order to combust and run efficiently. Moisture gathering in your car's distributor cap can cause your car to jerk while you are accelerating, as this will cause your engine to misfire. Why does the check engine light flash when accelerating and the car sputters and jerks? Answer A flashing check engine light means that something serious is wrong with the vehicle and you should. So I start to get on the interstate, and I hit around 50-55mph and my engine downshifts to give me some extra power to get up to 70mph, and I notice that my car suddenly looses some power and my check engine light starts flashing. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. The first time the “check engine light” came on steady was while driving, say on Friday AM. It also seems as though the engine is pulling extra hard. It sounds like it may be ignition related. Cars are always over taking me, it's embarrassing. honda forum at Car Dealer Forums; My Honda Civic year 2000 is behaving very strangely. It sounds like it is only running on 2-3 cylinders & shakes like an out of balance spin dryer. To check the oil, the engine needs to be OFF. It comes without warning and with no explanation. If you are comfortable doing basic checks under the hood, check if you have enough oil in the engine ( see how to check the oil level ), see if the battery terminals are tight, if the air filter box is closed properly. On most cars, whether front-wheel or rear-wheel drive, that sound would come from the front of the car. What is going on here? I just had a same situation recently. car begins to shake when acceleratingbecomes rather violent at 65+mph. Troubleshooting : Verify test failure, found fault does exist, in addition discovered oil warning light on the dashboard lights. My car is still accelerating, but I lost some of my power. Not a car guy. Either it will randomly come on, or the past couple times have been that I hit a bump, the light will turn on, then soon after the car will shake. acceleration problem, then engine check light start to flashing hi I am from New Zealand i have been reading lots of threads that has similar or same problem but with no proper solution to it. After a few months, braking at high speeds (i. It’s one of the most common reasons why a car jerks when accelerating. Therefore, if the driveshaft is even slightly bent or damaged (often due to an accident), it will cause the car to shake when accelerating at low speed and get worse as you go faster. Your car’s engine needs both fuel and air to do its work. A road force machine will measure rim run out, (check for a bent rim) locate tire hard spots in a tire, check for broken belts in a tire, diagnose defective tires, and balance tires, it is truly the best machine for car shakes and vibrations in my opinion, so ask your mechanic if they have access to a Road Force Machine if you have a problem. I started the car up one afternoon and when the engine kicked on the entire car started to shake and the check engine light came on. Auto mechanics say they get frequent calls from customers saying their car is vibrating. 2 CL-S, Car shaking under acceleration Did you try the cylinder balance test as suggested and yes, a vehicle can 'miss' under a load and not cause a CEL. Bad Engine Mount (Idle, Accelerating and Driving) - The engine mount is what connects the vehicle's engine to the rest of the body of the car. The check engine light ("malfuntion indicator light") is on and the EPC Electronic Power Control light also. I took it to shop and got a tranny flush and had them check why engine light is on and they said it was just a malfunction so they reset it and I left there and my car chugged and light came back on. September 1, 2019 Cars-care. Then check the engine oil , the oil was found less than normal. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. I have a 2013 VW Jeta GLI my Check engine light came on this morning. For the 95 Civic, the spark plugs are supposed to be replaced every two years or 30k miles, whichever comes first. September 1, 2019 Cars-care. check engine light came on dealer said the o2 censer was bad and was replaced and light is still on, now I am unable to get a license plate renew sticker for the car, since I have had 2 traffic tickets as result, dealer has no idea why. The engine light had been on for about a year with not really any signs of any trouble, other than slight jerking when accelerating out of a turn or a stop. Honda Civic: Why is My Car Shaking at Idle? If your trusty Honda Civic is shaking violently, accelerating poorly, or declining in fuel economy, diagnose and repair the problem as soon as you can. and DO NOT drive the car. My impression was that the engine was not getting the gas it needed as it would cough and stutter when I tried to climb hills or increase power, the pump and filter seemed to be the cause. This system is operated by the electronic control module (ECM), which is your car's computer. No one loves it when their car is shaking, it can be very frustrating. It reflects the driver , the LAUNCH Creader VII vehicle engine idling shake , the ” da da ” abnormal sound when accelerating. Actually, in automotive terms, a bank is a set of. If you have ever been driving and your check engine light came on, you likely had an instant reaction of panic followed by the question, “Why is the check engine light on in my new Chevy?” There can be a lot of things that can cause your check engine light to come on, but there are a few that are more common than others. During jerking, the engine light flashes like 10 times. Restart the engine after 2 minutes to reset the engine management system. Leave a Reply Cancel. I hooked up my code scanner and there is no code being shown however, the check engine light flashed on last night while driving home. Your local NAPA AutoCare Center will be glad to check your trouble codes and help you get the problem. so i get home do some research online then head back outside to check the car again since its cool down and of course the ticking is gone but the check engine light is still on. The check engine light was flashing for a little bit, but it stopped and just went back to being on. Auto mechanics say they get frequent calls from customers saying their car is vibrating. The normal steady CEL is simply monitoring emissions systems in the vehicle. Vehicle lost power, vibrated a lot. hey guys i own a 05 limited without the nav ,,194k lately the car was stuttering and shaking only when i touch the acceleration pad and theres no sign of check engine at all ! ive been suffering from this for a whole month was too busy to take it to the dealer!!. Replied by dreamer2355 on topic 2001 Acura 3. When the check engine light is off, it can go for hundreds of kilometers. Have the car checked as soon as possible to prevent expensive damage. The code number at a minimum would be a good starting point to know how to best advise you. Now I have been driving it like that to and from work. Your local NAPA AutoCare Center will be glad to check your trouble codes and help you get the problem. But what seems to be the big deal when your car is jerking while driving?. So do I just change cylinder 2 and everything will be back to normal? My truck shakes badly when im going from 40 to 50. Usually when I'm at a stop, it idles at just under 1k RPMs. What Causes a Car to Shake While Accelerating? Credit: DreamPictures/Blend Images/Getty Images There are various reasons why vehicles shake while accelerating and some of them include a clogged transmission filter, a worn-out universal joint and low transmission fluid. Cannot locate the problem. There was no half engine light, but the car was shaking and when i tried to accelerate, it would just bog down. The only way I can get the jerking of the car to tone down to a little bit is by putting the car in neutral when I am stopped. Checked fuel filter, pump, (fuel pressure) and I can't figure out what it could be. Well, as soon as the service engine light came on, there was an obvious lack of power. Thats right guys, what possibly can be wrong with my LS, when I accelerate hard the check engine light starts blinking and the car starts shaking alot. The engine seemed to be shaking a more than it should have been and the car continued to jerk even in park and neutral, so I don't think it could be the CVT. i had an issue with my check engine light before and had my ECM replaced about 3 months ago. When the check engine light is off, it can go for hundreds of kilometers. It was OK when giving gas, although still not right, but the idle was horrible and the car stalled out a few times at a red light, also really bad start from a go. The check engine light was flashing for a little bit, but it stopped and just went back to being on. It will take a long time to burn the gas at idle; better to burn it on the highway. The first thing you should check is if they are firmly attached to the wheels. My car recently overheated, due to a lack of coolant. Now I feel the shaking only when I try to accelerate faster that normal, the shaking is very light. And every time I accelerate quickly it does this. The car will move but the whole car will shake when I accelerate. The code came back as needing to replace the crankshaft sensor, and the oxygen sensor. so i get home do some research online then head back outside to check the car again since its cool down and of course the ticking is gone but the check engine light is still on. So I was sitting in a parking lot at idle when my revs suddenly drop below 500, as if the engine is going to stall. 4 triton v8 engine. It contains a thermostat arrangement and an electric heater element which forces the thermostat to gradually shut off the air supply. With a flashing CEL you have a serious misfire and are potentially putting raw fuel into. The car shakes because something is wrong. I have no idea what it is. Check Engine Light On/hesitation & shaking while accelerating and idling. so i turned arund and headed home. well when the check engine light comes on while the car is running and not when its supposed to when you start it, then u probably want to check the engine =) 4 people found this helpful. I started the car up one afternoon and when the engine kicked on the entire car started to shake and the check engine light came on. So I start to get on the interstate, and I hit around 50-55mph and my engine downshifts to give me some extra power to get up to 70mph, and I notice that my car suddenly looses some power and my check engine light starts flashing. Made it less than 100 feet and the car wouldn't accelerate and the check engine light came on. The air mixes with the fine spray of fuel inside the engine and is then lit by the spark plug, causing a controlled explosion, which moves the pistons. This started yesterday. The maintenance light is not the same as the check engine light. Drove again and the light was off. September 1, 2019 Cars-care. There is no code since the light stops flashing, plugged it in to. I can’t get on the freeway since it doesn’t go over 45 mph. With assistance from a mechanic that offers rebuilt engines in San Ramon, you can figure out why your vehicle is shaking or shuttering at traffic lights. #4 – Bad Fuel Pump or Filter The cause of your car jerking while accelerating is often a fuel supply issue. The worst case scenario is a car owner who keeps driving the vehicle because it "seems like it's driving just fine. Previous Post: Check Engine Light Car Shakes When Accelerating. I turn right onto a bigger street and try to accelerate, and it's getting worse to top it off, now the check engine light is flashing at me and the car is shaking a bit harder. Your car’s engine needs both fuel and air to do its work. 95 Honda Civic Hesitation/shaking when accelerating. Check engine light was on, Cruise was flashing (because you can't use it), and the idle shook the whole car side to side (don't you love the flat four). find a cure for my car. My check engine light is on, My car shakes when I accelerate hard or on an incline? What's wrong? It's fine going slow at first and building up speed but anything heavy on the accelerator kind of jolts the car and the check engine light starts flashing but then it stays on if I'm coasting or softly accelerating. Usually when I'm at a stop, it idles at just under 1k RPMs. So this just started recently. To determine where exactly the source of this problem is, you need an on-board diagnostics (OBD) scan tool to access the ECU and retrieve diagnostic trouble codes (DTCs). Cannot locate the problem. ThinkStock Sometimes a shake or shudder will emanate from the engine compartment, because the engine isn't getting the proper amount of air, fuel or spark that it needs to run smoothly. it will shift when it shouldn't and it idles high when i start it. i had an issue with my check engine light before and had my ECM replaced about 3 months ago. Problems with engine timing can also cause serious shaking. when I ease off the acc. while waiting in line at the local car wash the engine in my 2013 ford explorer sport began to rev up, then lost power and began to shake violently before the engine stalled completely. Your Check Engine Light Comes On and Stays On. It also shakes a little during acceleration and when I accelerate harder, the check engine light. If after a few days the CEL remains on you will need to read the codes. Sometimes the car runs fine. right before I noticed the light, my vehicle was shaking and not accelerating normally. It also seems as though the engine is pulling extra hard. This caused my Check Engine light to start "flashing" and my traction control light to stay on. A light, non-metallic thud can be heard coming from the rear end while cruising at 25 mph, which can only be heard when it is quiet and no brakes are applied. To determine which wheel bearing is the culprit, drive the car at approximately 30 mph/50 kph on a quiet road, and for example, if you round a left hand corner, the centrifugal force results in the load being applied to the right wheel. While driving 45 mph, the speedometer displayed incorrect information. A road force machine will measure rim run out, (check for a bent rim) locate tire hard spots in a tire, check for broken belts in a tire, diagnose defective tires, and balance tires, it is truly the best machine for car shakes and vibrations in my opinion, so ask your mechanic if they have access to a Road Force Machine if you have a problem. The code number at a minimum would be a good starting point to know how to best advise you. In the past 8 months or so I started noticing a vibration when accelerating. I went out with my husband to test problem and when the air compressor went on for the A/C (extra load on engine) it kicked on the VSA warning light and the symptoms. Reasons Why Mazda Check Engine Light Is On. However ever since my car is over revving whenever I accelerate but it doesn't gain speed. You should also know that a defective idle air control valve might make the engine idle drop significantly. It flashes for maybe about 5-10 seconds and then stays lit. Within two to three days of normal driving, the check engine light will reset itself (CEL will turn off). Actually, in automotive terms, a bank is a set of. In addition, when the accelerator pedal was depressed, the vehicle jerked before accelerating and the check engine warning light illuminated. Then it happens that the car shakes and the check engine light comes on. If the car seems to be excessively loud in general, this is an indication of a problem. Also strangely the car will vibrating/shake while it idles after a little while. If it's shaking, it's likely that the sparks are not happening or happening at the wrong time or intermittently. which would case a heavy vibration on acceleration, because your exhaust is clogged and the motor is getting to much back pressure. Was on the highway in Over drive and my truck started to shake violently when I would accelerate slowly, around 1500 rpm. Reasons Why Mazda Check Engine Light Is On. During the past couple of weeks when I accelerate the car shakes. So I start to get on the interstate, and I hit around 50-55mph and my engine downshifts to give me some extra power to get up to 70mph, and I notice that my car suddenly looses some power and my check engine light starts flashing. So this just started recently. Set the parking brake, careful, some engine parts might be hot. It starts its hesitating missing feel. This article will take a look at the top 10 reasons behind a vibrating car. When you see the check engine light it doesn't necessarily mean you need to pull the car over to the side of the road and call a tow truck. And it does for the most part, but then it clicks and the RPMs drop to about 500 RPMs, bouncing barely over and barely under, for a few seconds. Loose suspension components. acceleration problem, then engine check light start to flashing hi I am from New Zealand i have been reading lots of threads that has similar or same problem but with no proper solution to it. To complete this task you will need a simple OBD II scanner. Every once in a while when I turn my car on it starts shaking and when I start driving, it is as if the car lost half of its acceleration power. the light flashed when I accelerated and when I slow down it goes off. Vibrations in your car don't always come from tire problems. I let it sit for awhile, then went to drive it around the block to see if it happened again. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes. Hi sir, my car is a wongroad Nissan, when the check engine light on the dash board goes on, the car looses power. Cannot locate the problem. It can come on for any of hundreds of different causes from any of the systems that the computer monitors. I just looked at the car and it is in excellent condition appearance wise, with no rust, excellent interior and shiny original paint. We live 2 hours away from where we bought the car so we couldn't take it in until the following weekend. Could be anything - throttle position sensor, oxygen sensor, CO2 sensor. the light flashed when I accelerated and when I slow down it goes off. But when I'm not driving for that long. Previous Post: Check Engine Light Car Shakes When Accelerating. Your car’s engine needs both fuel and air to do its work. I was probably in 4 gear slowly accelerating from 30 to 45 mph and the vibration happened. Reasons Why Mazda Check Engine Light Is On. Sometimes the idling starts in the middle of the highway at high speeds and other times its right when I start my car. My engine. Recently I started the car up and noticed the engine was shaking very roughly. Once the driving speed is reached the car runs perfectly until I try to accelerate again. My car shakes when it's idling and the engine light is blinking on and offf 24 Answers. I have a 2007 expedition and every time we step on the gas the check engine light comes on. You don't need to use a scanner to reset Audi check engine light as long as the problem was resolved. check engine light on, shakes, runs rough, loudly when i accelerate in the rec. I only drove it back home luckily just a mile because I don't want to damage it. Sometimes its fine, but increasingly when stopped at a light it will start shaking and the engine revving up and down, and then when going from the stop it really struggles to get moving. I took it for a small drive and when I accelerated to get up to speed it seemed to lack power and the check engine light was flashing. Cold morning around 36 degrees F. In the past the check engine light seems to be tied to a squeaking sound whenever I start a cold engine. " If you ignore a flashing check engine light it is entirely possible that the vehicle burns up the catalyst and causes engine damage. Consumer Reports tells you what the check engine light means and what you should do when you see it. If a misfire is responsible, a loss of power or “hesitation” will usually accompany the vibration. Hi sir, my car is a wongroad Nissan, when the check engine light on the dash board goes on, the car looses power. If the car accelerates properly without issue, you may have located your problem. Because it still shakes with new plugs I would bet on bad gas. if you get up to speed and let off the gas, the shaking stops and the car rides smooth. The "check engine" dashboard warning light is dreaded by drivers of all sorts of vehicle makes and models. 159900+ miles. when the jerk stops, engine light becomes off again. Auto mechanics say they get frequent calls from customers saying their car is vibrating. Check engine light is on, any speed above 30mph it gives a flashing check engine light, acceleration feels bogged down, engine idle is rough and shakes the truck. they told me to replace EGR valve, it costs 500 bucks. This caused my Check Engine light to start "flashing" and my traction control light to stay on. It’s one of the most common reasons why a car jerks when accelerating. Why does the Engine of my Car Shake?. During jerking, the engine light flashes like 10 times. Something broke. If the car seems to be excessively loud in general, this is an indication of a problem. Why does the check engine light flash when accelerating and the car sputters and jerks? Answer A flashing check engine light means that something serious is wrong with the vehicle and you should. car begins to shake when acceleratingbecomes rather violent at 65+mph. My impression was that the engine was not getting the gas it needed as it would cough and stutter when I tried to climb hills or increase power, the pump and filter seemed to be the cause. The worst case scenario is a car owner who keeps driving the vehicle because it "seems like it's driving just fine. The check engine light is flashing because something is wrong. Within two to three days of normal driving, the check engine light will reset itself (CEL will turn off). Check for the following: Motor Mounts: A broken or tired motor mount will cause your engine to move around too much. Hi my check engine light is always on but only recently it's been flashing and my car looses power and shakes when I accelerate but if I continue driving after some time it just goes away … read more. check engine light on, shakes, runs rough, loudly when i accelerate in the rec. You probably have a bad misfire. I started the car up one afternoon and when the engine kicked on the entire car started to shake and the check engine light came on. Automatic transmissions help the vehicle to change gears with the help of computerized programs. Felt like it was hesitating or a "slip" when easing away from stop signs, at red light it shuddered some. What is going on here? I just had a same situation recently. Check engine light comes on when accelerating 13 Answers In my 90 f150 when I accelerate the check engine light comes on. The truck has the check engine light on, but when I start it and accelerate it I get a wrench warning light and it starts failing and loses power, and the AC stops working. A check engine light should be present when the mass airflow sensor is bad but you can easily confirm via an OBD2 scanner. Not sure what's wrong any ideas?. Top Reasons Your Car May Be Shaking 1. 8L 42,000 miles, no modifications, change feud filter at 30,000 mile when I push the gas pedal; I really have to mash it to get the car to accelerate, the Engine feels like it top out about 4000RPM, if you continue to push the pedal, the Engine Check Light will flash until you back off the gas, the dealer guy put in the. I have K-pro, and just recently installed a Greddy TI-C exhaust. this all happened suddenly. We bought a 2011 Equinox in May with 101K miles. My car (Honda Accord, 97 LX) engine check light is on since 10days, but car is running fine. My guess is the Coil is going bad. I went a head and got a tune up and replaced the spark plugs and the car seemed to be running smooth.