-Boost: Car boosts up fine, but is not hitting target boost of 19psi. My 2004 XC70 (162,000 mi. i was driving and just accelerating on to the freeway when the car decelerated and turned off while in drive. Severe hesitation upon accelerating at low speeds, passing at high speedswhen stepping onto the gas pedal there is very often a severe hesitation, sometimes as much as a 2 or 3 SECOND delay before the engine kicks in to pass. Does this sound familiar to anyone?. like something is loose. My 1999 Subaru Legacy 2. The car seems to work very well when it's cold. I had the throttle body cleaned. 5'sI presume it is the same problem, almost as if the speed control is kicking in whilst cruising and trying to slow the car down. I think something is wrong with the transmission. It stutters, it hesitates, but it gives no Check Engine Light. Even that I pushed the pedal as far as possible the car did not speed up. As soon as i changed it the car had more power and the hesitation was gone. I have started with the fuel system doing a pressure test and found the pressure regulator was bad so that was changed out. com and as long as they offer you within a few hundred of what you think it's worth. Fixed sputtering while under load problem. 0 is having trouble accelerating from a dead stop, or gaining speed to pass, with hesitation, sputtering, etc. A hesitation or stutter at low RPMs can be many things. Especially when I passing over a hump, press the gas enough to keep the car moving but it acts like its not getting any gas, no power and then all of a sudden jerks forward. For the past month or two, after driving to warm up the car a bit, it "hesitates" at extremely low speeds (less than 10km/h) when trying to accelerate. 399 Buick Consumer Reviews and Complaints. This usually happens when I am behind a slow moving vehicle and I must maintain a low speed. There are a number of potential causes for this problem. But when I am driving and I am accelerating or going up a hill the engine starts cutting out, hesitating, chugging, i'm not sure what to call it. This does not occur always, but about 99% of the time. Non-typical low RPM hesitation So, I did the single point ground hoping that it might help this problem, but no. sometimes i will get the emissions light flash when i dont rev in a low gear but the light goes when i turn the engine off. The dealer replaced the transmission fluid and probably updated the software as well. I need to take more notice! Around 2k revs I'd say it does it most. I have had occasional hesitation when turning left and changing lanes at a slow speed. 3 L carby engine. vibration when accelerating from dead stop. From a stop, car hesitates on accelerating. ) has an inconsistent 'miss' at idle engine speed (which is becoming more consistent as the days go by). Call or schedule online with one of 14 Front Range locations today. Even if the diaphragms are clear you could still have Jun in the needles etc. It feels like my car takes an extra moment to shift into the right gear. Dodge Dakota Forum for Dodge Dakota trucks with an interactive site including Dodge Dakota Forums, Pictures, Links, Message Boards, and Chat Forum. IACV is Idle Air Control Valve. My mechanic has checked it but there is still no improvement. It's like the trans doesn't know what gear it's supposed to go into. Hello to All, I recently bought a 2004 ES330 with 142k on it. From what I have read in a few places it sounds like the turbo charger(s) may be the cause. This car also shakes or vibrate when you accelerate to speeds of 60 to 65mph. Any ideas??? Bookmark. It seems like the governor needs some adjustment. 3 L carby engine. Low transmission fluid level could the source of the rattling sound when accelerating. Page 1 of 2 - Light clattering clicking sound when accelerating - posted in Maintenance & Repairs: Hi all, anyone experience light clicking or clattering sound in their auto car when during light acceleration? The sound is very much like a manual car accelerating and upshift of gear when the speed for that gear have not been attained. Thanks for sharing this advice on getting your car's transmission problems fixed. Welcome to Auto Save Mobile Mechanic we are fast becoming the number one mobile mechanic service covering London and the Surrey counties. Free Quote. On one occasion the sputtering was comple. I'm thinking accelerator pump, but not sure. In short, you press on the gas, and nothing happens, and in fact, the car seems to lose power or "bog down. Is the noise due to an inferior muffler which is supplied by the used car dealer or needs looking into? Thanks CL. 2002 mustang gt Hesitation under acceleration 4. 06 sti hesitation at 2500 rpms avcs, 2008 wrx stumble, 2011 wrx ecu stop car from boost, subaru wrx surging on boost, wrx bov stuck open, wrx engine surge, wrx hesitates when you accelerate, wrx high rpm no boost after battery reconnect, wrx sti turbo surge, wrx surging. So it's as if the engine was running in some sort of relaxed mode. i also had an incident when driving down the highway at. AT LOW SPEED and applying the brakes, the car would suddenly. My 2012 CR-V EX-L hesitates when I accelerate while making a low speed turn. Why your car may be jerking, bucking. I have also replaced the fuel filter. For the past month or two, after driving to warm up the car a bit, it "hesitates" at extremely low speeds (less than 10km/h) when trying to accelerate. However, that could explain why my car has a little trouble decelerating. If I am not driving at that speed and accelerating in the same rpm range. 2000 FORD B SERIES; Bulletin Number: 17467: ENGINE OR FUEL SYSTEM CONCERNS WHEN USING FUEL WITH GREATER THAN 5% BIODIESEL CONCENTRATION. JMcGill E30 Zone Newbie. I am concerned that when you need fast acceleration when turning left and it hesitates, you could be in an accident. When I am driving around the city around low speeds, when I press the gas, again it feels almost as if I have to force the car to accelerate when I want to speed up, and sometimes I can feel the car stutter a little. 5 l with 200 000 km sputters when accelerating at low rpms since a few weeks. I did chcek the air filter-clean. When I'm sitting at a stop light and I accelerate all of a sudden the car takes a little bit more gas to accelerate and there is like a slight jerk or hesitation. With mine it sometimes happens if I've been slowing down (e. I had a similar problem. I also hear clicking sound when hestation happens. The 2019 Toyota RAV4 has 25 problems reported for hesitates and lurches at slower speeds. You could check whether the problem is in the transmission in the following way. While accelerating slowly at low speeds between (20-30) is when it occurs. The car is mint, drives straight and looks like new inside and out. Diesel engine knocking when accelerating. It’s only as low speeds when the hesitation and jerking happen. Anyways, no matter what speed I go, when I need to slow down to make a stop, of course the rpms will go down. Car sometimes hesitates when accelerating from a low speed, usually when coming out of junction or round about when I quickly accelerate from a low speed. This vital part of a car's structure doesn't tend to cause problems. The symptoms then were that the engine would idle fine, and drive okay at mild speeds an then start to cut out at higher speeds or hard acceleration. I felt the car vibrating when waiting at the traffic lights, just before arriving at my. I have checked the spark plugs and they are a brown color on the tip which tells me that there isn't a rich/lean problem with the plugs. Even under throttle in park or neutral, it ran fine. At idle the engine runs smooth with no signs of hesitation or roughness whether the car is at park, neutral or (D) positon. Even if the diaphragms are clear you could still have Jun in the needles etc. It has 125K miles in it. i feel that this car is no longer safe to drive. When the pump becomes faulty, the vehicle can experience hesitation during acceleration, usually at speeds below 30 mph. e it will jerk for about 5 seconds before normal acceleration occurs. Another possibility is the catalytic. Clunking in rear at low speed on deceleration and acceleration 2007 ESV. 2013 R/T Engine Hesitation under acceleration. What does my car need?. When your car starts roughly,hesitates or doesn't get up to speed in a timely manner, it's a problem that can leave you stuck in driveway. Instead of get-up-and-go, you get hurry up and wait. If I give it some gas it starts to even out. The carb I am using is a NOS Holley 9834-1 Here is what happens: Car starts fine hot or cold. Motorists in passing vehicles are zooming by me as I am attempting to get this car to go. The transfer clutch, which is used in the 4-speed automatic, can fail in a binding condition. Although it doesn't always happen only 50% of the time. Every couple of months a Z car owner somewhere cries out "Help, my car is suffering from hesitation/stumble: what could be wrong?". Page 1 of 2 - Car hesitates/pull-back when accelerate - posted in Maintenance & Repairs: Hey guys, im driving a vios and for the past few weeks, my car will start to hesitate especially when i accelerate hard from stop. Diesel engine knocking when accelerating. Have encountered this cold "bog" and have determined it is not the spark plugs or fuel pressure but the wires. There is no noticeble fuel economy show more hi there. hesitation can occur when your engine is starved for something it needs. It flashed like before and just disappeared after a few seconds. hesitation, and motor dieing. Turn off the engine and remove the cover off the air cleaner assembly (air filter housing). Your car engine is making unnatural noises and you don't have the slightest idea what it could be. It never stalls and if I depress the accelerator further the engine seems to run just fine. My precedent Club Car hesitates when I press the accellerator. None broke thank GOD. A bad torque converter could be the origin of rattling sound when accelerating at low speed. 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. Technician "could not duplicate. A year old. I had the tires balanced and it didn't change. I tried accelerating passed 4k rpm again and that's when the surging happened it seems. The truck DOES NOT act up during idle or when running at low speeds, ONLY WHEN ACCELERATING. Change in engine speed without noticeable acceleration. Page 1 of 2 - Car hesitates/pull-back when accelerate - posted in Maintenance & Repairs: Hey guys, im driving a vios and for the past few weeks, my car will start to hesitate especially when i accelerate hard from stop. Has anyone experienced a real delay in power when accelerating from a very low speed. this problem has happened twice with my volkswagen cc. 2008 and 2009 bmw 3. My car engine hesitates when I accelerate! The reaction of the ECM computer will be to inject fuel according to the wrong airflow reading. Procedure: To overcome hesitation at acceleration- for the Hemi V-8 only 1) Turn key to ON position (not ACC), but DO NOT start engine now wait a few seconds for the dash lights to clear 2) slowly & steadily press accelerator pedal all the way to the floor and then slowly release at same rate. I am trying to tune out a hesitation in the off idle part throttle range. I had a similar problem. 73000 mi US $170: Low speed shudder during light acceleration. It makes it hard to drive smoothly at low speed and low rpm. Anyways, no matter what speed I go, when I need to slow down to make a stop, of course the rpms will go down. The vehicle has been great, however, recently, after a service visit to repair the lift gate mechanism, the car is hesitating at low speed upon acceleration, often up a slight incline, as if it's not down shifting when it should. hi i have a 2001 corsa club 1. I have a 94' club car with the 290 engine. Car Model : Elantra GLS 2013 MPI 1. When I start my car, the rpms like to jump from 600-800. Thanks for sharing this advice on getting your car’s transmission problems fixed. It ran great at the higher RPM's and idled fine, but if you were driving below 1600RPM it would jerk, buck, and hesitate BAD! It turned out to be a vacuum leak. My 1998 Honda Accord jerks whenever I am trying to accelerate from a stationary position. -Boost: Car boosts up fine, but is not hitting target boost of 19psi. The experts at AAMCO Colorado can help you diagnose your car and get you back on the road fast. Your car's engine needs both fuel and air to do its work. Has anyone experienced a low speed, <25 mph, hesitation in power. If you rev your engine and the car hesitates before accelerating, it can mean your clutch isn't delivering the boost in RPM through the transmission to the drive wheels. When I am driving around the city around low speeds, when I press the gas, again it feels almost as if I have to force the car to accelerate when I want to speed up, and sometimes I can feel the car stutter a little. No engine lights or anything, but it’s getting worse and worse (used to happen rarely, recently is very frequent). ok guys it started last night while i was on my way to work. It's actually one of the most common reasons why a car jerks when accelerating. 1992 DS gas hesitates when gas is pushed September 24, 2013, 02:26 PM I have a 92 DS gas and when I push on the gas it hesitates about 2 seconds before it starts and runs perfectly. And i speed. If you begin to notice even a little hesitation when you attempt to accelerate, it could be an early sign of your fuel pressure regulator beginning to go bad. IACV is Idle Air Control Valve. I've been getting this severe hesitation, or loss of power if you will when accelerating rapidly only, when accelerating gradually there is no problems, the car does the same whether is cold or already warmed up, it does the same thing whether I'm driving or just idling in the driveway in neutral. Hesitates When Accelerating. up to around 2500rpm and then it's fine. I am a boat technician myself; so I have a little better idea of what's going on with an engine, than the average consumer. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! It really was jerking when accelerating or going up a hill! FIXED 2JZ hesitation & low power, no. Changed the air filter but my car still hesitates and has a check engine light. If I give it some gas it starts to even out. 0TDCI erratic in 1st and 2nd gear at low revs I have a 2011 2. Bog from a cruise RPM may be caused by a defective advance mechanism, but on 4 barrel carburetors is often caused by the secondary side opening too soon. hesitates when on auto lane change and. all makes including BMW, Mercedes, Peugeot, Nissan, Renault, Alfa Romeo,Toyota, Mazda, Citroen, Fiat etc. I changed the accelerator pump and I am getting a good squirt of gas in carb. Once the car struggles through a few hundred rpms, the hesitation just seems to "let go". Again, on June 16, 2018 went out to the vehicle after shopping with my daughter for a couple hours and the vehicle wouldn't start. The hesitation has always been there since I got the car back in 2012 even after i did a clutch (and flywheel) replacement thinking it was that. You can try carefully taking it out and cleaning it with a carb-throttle body cleaner. I also hear clicking sound when hestation happens. When to change spark plugs (6 tell tale signs) Spark plugs are an integral part of your vehicle’s motor as they provide the much needed spark that ignites the air and fuel mixture within the cylinders. It doesn't even get over 14psi under high load. I have had occasional hesitation when turning left and changing lanes at a slow speed. If it is a vacuum leak, those symptoms should disappear when you run the car at high speed. Mine acted up with inconsistent idle speed (no code). "It induces deceleration, so it's almost the opposite effect" of sudden acceleration, he said. *TT: Bulletin Number: 99196: INFORMATION O. Mine is manual, If I slow for say a speedbump to 10mph in 3rd gear if I then accelerate briskly the car will stumble and buck for a second or two. A more specific example is if I'm in heavy stop-and-go traffic and I brake/coast to almost a standstill, wait a few moments and then try to accelerate, it hesitates for a second then "clunks. It is only at slow speeds and only under light acceleration. It also occurs when I am trying to overtake it will suddenly start jerking for about 5 secods before it lets off. Hesitation when turning at low speed. 2013 R/T Engine Hesitation under acceleration. The issue is when I accelerate it comes up to speed and then surges harshly. The unfortunate truth is that engine noises can mean anything from a simple quick-fix, to a complete engine overhaul that may not be worth the money if your car has some gnarls in its beard. From what I have read in a few places it sounds like the turbo charger(s) may be the cause. The problem originally started as a slightly rough idle right after starting the car and a slight hesitation/shudder when accelerating. Can't find anymore faults. 2014 Ford Fusion Steering: Car has limited power and acceleration. Need technical Q/A then you're in the right place. Juuust long enough for every car behind you to honk, flip you the bird, or angrily swerve around you. Your car's engine needs both fuel and air to do its work. Though, even if I take it out of overdrive and accelerate, it will still do it. i was driving and just accelerating on to the freeway when the car decelerated and turned off while in drive. I had to get a jump from a family member. com and as long as they offer you within a few hundred of what you think it's worth. I have an 02 buick century 3. Every couple of months a Z car owner somewhere cries out "Help, my car is suffering from hesitation/stumble: what could be wrong?". Also has poor acceleration performance. Read also: 5 Symptoms of Low Transmission Fluid: Manual and Automatic. My seat-of-the pants opinion is that they have tried to wring so much fuel mileage out of the Jeep, that there isn't enough for it to even run right, in certain situations. Kinda rode that out for about 50 feet and then hit them again and they were low and slowing the car but nothing compared to the amount of pressure I was exerting, which was considerable. i do not feel safe driving this car as it shuts off with no notice. But you can troubleshoot this common problem, maybe even fix it yourself. Pt cruiser jerks when acclerating, hesitates when not accelerating, fine when idle Engine light came on, car almost died, but continued with a jerking on initial acceleration then smooth riding until I take my foot off the gas pedal, then it slows down fast instead of the normal coasting, acceleration again causes the jerking for a few seconds. Car Problems: Chevy, Buick, GMC, And Cadillac Diagnostics | Certified Service. Why does my car accelerate slowly when I press the gas? Greg February 16, 2012. Instead of get-up-and-go, you get hurry up and wait. It's sometimes noticeable when accelerating at low speeds to about 40km. My car engine hesitates when I accelerate! by zilog357 · Published July 9, 2010 · Updated February 18, 2019 S ometimes we experience an annoying hesitation or stalling when we are cruising in our cars and decide to accelerate either slightly or harder. I will now pretend that vacuum advance doesn’t exist. Non-typical low RPM hesitation So, I did the single point ground hoping that it might help this problem, but no. when this happened in sept. 2) Vehicle hesitates when accelerating after rolling stops, such as at traffic lights that change to green as you approach them. Under normal driving conditions it allows the engine to run while the car isn’t moving, but transferring power from the engine to the transmission when the driver accelerates. Hesitation on Acceleration with Warm/Hot Engine she was hesitating and running rough at real low speed and. I have an 02 buick century 3. Another bulletin dated Sept. Your car engine is making unnatural noises and you don't have the slightest idea what it could be. To summarize, it hesitates and jerks under around 10 mph, but once I’m going, it drives just fine. I think something is wrong with the transmission. If any of you have an Ecoboost that hesitates when accelerating from low revs, drive it straight round to WBAC. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes; P0120 to P0124 Throttle position sensor codes. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. The car would slightly hesitate and stutter at low rpm's between 2nd and 3rd gear. Misses Acceleration/cruise The engine misses during acceleration or cruising. So the check engine light came on again while accelerating right around 4k rpm. I am trying to tune out a hesitation in the off idle part throttle range. General Motors is recalling 50,571 2013 Cadillac SRX crossovers because faulty transmission software may cause acceleration lag. This may be caused by low transmission fluid, or worse, worn transmission bands or gears. This usually happens when I am behind a slow moving vehicle and I must maintain a low speed. When car does take off it goes to fast and can make a driver lose control. Transmission shudder when accelerating in traffic (25-45mph). Insufficient burning inside the engine will make the car hesitates or jerks when driving. If I am not driving at that speed and accelerating in the same rpm range. Once the car responds to depressing the accelerator, the car will jerk forward. A bad torque converter could be the origin of rattling sound when accelerating at low speed. Has power with overdrive off but hesitates and Boggs down when going up hill with overdrive on and acts sluggish when cruising at low speeds with overdrive on. I don't know if it's nice that others experience the same thing, but I had the same thing on my old Malibu a few times too. I picked up my car in March and right around 5k miles, I started to notice that it stutters or hesitates when I'm trying to gently accelerate. At higher speeds, the engine runs fine. Average failure mileage is 2,050 miles. While accelerating slowly at low speeds between (20-30) is when it occurs. Low transmission fluid level could the source of the rattling sound when accelerating. Acceleration problem above 35 mph It would advance spark at 3000 RPM up to 32º which again should be expected but when car hesitated and had poor acceleration, it showed retard to 10º-15º at 2600-2700 RPM. I've been getting this severe hesitation, or loss of power if you will when accelerating rapidly only, when accelerating gradually there is no problems, the car does the same whether is cold or already warmed up, it does the same thing whether I'm driving or just idling in the driveway in neutral. but accelerating from a full stop is smooth. The car is mint, drives straight and looks like new inside and out. “Car hesitates when stepping on gas and is very noticeable in bumper to bumper traffic” KENNETH M. - Hesitation @ low RPM Throttling / RPM's drop off car almost stalls/ afr goes into 20s - Stalling at idle on occasion - Floored it takes the fuel but is running too lean for safe operation. But instead of moving when you hit the gas pedal, your car hesitates. Ok I have a 5 speed 4x4 93 Loyale, it runs absolutely great except for one thing. The electrical system is stock to my knowledge. It’s rare with modern vehicles, but even a well-tuned automobile can overheat. 5 Club Car Precedent with a lift kit and off road tires. If I am not driving at that speed and accelerating in the same rpm range. Nothing seems to happen when you start to accelerate and then the revs will shoot up but smooth take offs can be difficult to achieve. However, there is still a knocking when accelerating, not so much at high speeds anymore, but now it's most noticible at LOW speeds it seems to be more related to the speed of the car rather than the engine, for example, from a stop. If I accelerate from a stop (or at higher speeds) with a "heavy" foot, it runs just fine. When accelerating at a stop light or when slowing down to make a turn, it hesitates when stepping on it to go. 399 Buick Consumer Reviews and Complaints. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! It really was jerking when accelerating or going up a hill! FIXED 2JZ hesitation & low power, no. Eventually, it goes down to 1 and I am able to drive. " A second. Need technical Q/A then you're in the right place. I'm thinking accelerator pump, but not sure. Kinda rode that out for about 50 feet and then hit them again and they were low and slowing the car but nothing compared to the amount of pressure I was exerting, which was considerable. If I'm slowing down or speeding up it doesn't do it. If the system passes all the typical performance tests this may be a normal characteristic of this car. The knocking noise is at low speed in rpm (1500-2000rpm), if accelerated over the noise stops. Once the car responds to depressing the accelerator, the car will jerk forward. It idled fine with no problems. 2) Vehicle hesitates when accelerating after rolling stops, such as at traffic lights that change to green as you approach them. I have an 02 buick century 3. I had the tires balanced and it didn't change. Complaints have surfaced that certain Dodge Ram vehicles are experiencing acceleration problems, including sudden acceleration and failure to accelerate. and uses the same wheel-speed sensors to detect tire slip during acceleration. My 1999 Subaru Legacy 2. When climbing a hill, transmission wont More … 2012 Chevrolet Equinox Window Wiper: I was driving on the highway at night time during light rain. 0 - sputters while accelerating: Sputters At Low RPMs When Car is Cold, Dies While Driving. Turns out the gears are slipping. (more consumption) I jumped on the gas once I got it into second gear, and it ran hard and fast, same as always. Someone please help me. Need technical Q/A then you're in the right place. It also occurs when I am trying to overtake it will suddenly start jerking for about 5 secods before it lets off. anyone have this problem before?. If you rev your engine and the car hesitates before accelerating, it can mean your clutch isn't delivering the boost in RPM through the transmission to the drive wheels. When I am driving around the city around low speeds, when I press the gas, again it feels almost as if I have to force the car to accelerate when I want to speed up, and sometimes I can feel the car stutter a little. The car seems to work very well when it's cold. Re: Car hesitates under acceleration Tue Jan 04, 2011 7:39 pm at low rpm your engine is flowing very little fue. 68000 mi: Shuddering during low speed acceleration. Recently its developed a hesitation almost kill the engine kind even after first start up, notice even more when accelerating from a stop. Transmission shudder when accelerating in traffic (25-45mph). When car does take off it goes to fast and can make a driver lose control. If I let go of the gas at anything above 55 mph and coast, it is as smooth as. Low transmission fluid level could the source of the rattling sound when accelerating. This typically occurs when the gasoline mixture in the combustion chamber explodes at the inappropriate time for most efficient operation. Low speed acceleration is a particular trouble-spot for this CVT. When i am driving it seems like my car hesitates when accelerating, then when i am driving it will randomly jerk at low rpms sometimes even when at high speeds. When stopped fully, accelerating to pull away uses more power than cruising or just driving at constant speeds. I'm not sure it would cause hesitation on acceleration, but I suppose it is possible. When you accelerate you should have absolutely no hesitation and your car should begin to move immediately. Could be a sensor issue often a temperature sensor misreading the state of the engine and then supplying the wrong amount of fuel , air or spark timing. Free Quote. I had no idea that a slipping transmission occurs when the gears become too worn. As soon as i changed it the car had more power and the hesitation was gone. Insufficient burning inside the engine will make the car hesitates or jerks when driving. My car hesitates or is "jerky" at all rpm's, but especially low. Recently, I observed that I feel a very slight vibration when accelerating from low speed. Another bulletin dated Sept. When you step on the gas halfway to the floor or more it Boggs way down before accelerating. The problem mainly seems to be in 2nd, 3rd, and 4th gears from 2k RPM to 4k RPM when it feels and sounds almost like VTEC kicks in. It - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. It is mounted on top of the throttle body with a blue sticker. Below are the top 7 causes of car shakes when idle, accelerating, driving, and braking. My Engine is Shaking, and the Car Hesitates So your engine is idling poorly (shaking, misfiring), and you are not able to accelerate properly. How To Fix Engine Hesitation During Acceleration - 39 Possible Causes P0101 P0131 P0300 P0420 FIXED 2JZ hesitation & low power, no check engine light. Insufficient burning inside the engine will make the car hesitates or jerks when driving. And the problem does not happen everytime I drive, it happens here and there. It seems like the governor needs some adjustment. Hesitation on Acceleration with Warm/Hot Engine she was hesitating and running rough at real low speed and. Check all connections from your filter all the way to your throttle body (throttle body elbow, MAF, etc). When accelerating at a stop light or when slowing down to make a turn, it hesitates when stepping on it to go. A failing throttle will often allow the engine speed to significant undershoot 900 rpm, then have the speed go well over 1000, drop well under 900,. When you step on the gas halfway to the floor or more it Boggs way down before accelerating. Best Gearbox Repair & Auto Transmission Specialist Singapore. I take my foot off the brake and accelerate and it feels like it's going into neutral. I have a 1999 Buick Regal GS Super Charged. A screwdrivers width turn can make a diference. The first step to identifying the cause of this is to find out if the car is fuel-injected or if it has a carburetor. The hesitation of this vehicle to accelerate leaves me feeling unsafe. Why does my car accelerate slowly when I press the gas? Greg February 16, 2012. I say let go because when it does it rocks my head back a little. Too retarded timing will give low power, lousy emissions and excessive bore wear. A car hesitates when accelerating is a symptom that shows an imperfect internal combustion in your engine. When I accelerate from a dead stop my car seems to lurch or hesitate a bit. 2013 R/T Engine Hesitation under acceleration.