Engine Revving Sound While Driving

A chugging noise could mean a blockage in the exhaust system. A car that jerks when accelerating, when starting the engine or even while driving at constant speed is showing symptoms of a problem. 6 (115) petrol Focus has just started to make a whiney whirring noise. However there may be other reasons to the same problem. When a timing belt snaps, the engine no longer builds the compression it needs to run. When downshifting in a car using a stick shift, we must first depress the clutch pedal to disengage the gears, move the gearstick into the lower gear, and release the clutch pedal to re-engage the. when it revs up it is going up and down between a few 100 rpms and it sounds like the engine is revving up. But when. safety issue since car will not start again and got stranded on highway at odd hrs. It will be a pilot bearing if the sound starts when the car begins to move and you release the clutch. I have an Oldsmobile Alero I believe 1999, with 90,000 miles. 2000 Mercury Mystique automatic 4cyl While driving at a constant speed the rpm gauge starts to fluctuate especially between 40-50 mph. If there's experience a strange buzzing noise coming from the engine of your car, especially if it's an older model, there could be a number of causes. I am experiencing an issue where while under normal driving conditions the engine makes a high revving sound while the tachometer indicates that the RPMs are dropping. while driving various speeds, the vehicle stalled. While parked or in neutral standing still I could rev the engine and it wouldn't produce the sound. The static/noise only occurs when the engine is running. What's the problem? A. I pulled the van over, turned the car off, and then turned it back on again to see what would happen. The frequency of the ticking varies based on speed. A car that stalls while you’re driving is a dangerous situation no matter where it happens. Dear Car Talk: I have a 2007 Honda Civic. A puddle under your car can mean anything from "it's really humid today" to "you cross-threaded the oil-drain plug and I'm bleeding to death. Why is my car stalling? So what causes car stalling problems? Car engines quit because of a variety if issues around air flow, fuel or mechanics. when i pressed the gas i heard a loud pop and my engine making a strange noise. When you rev your real car, the audio revs up as well. When I have the AC on and am idling (foot not on the gas at all) the engine is revving itself up and down. Exhaust systems on vehicles produced in the last 15 years have gotten much better. If rear differential noise occurs while accelerating the car only at a certain speed, it is likely because the gears have become worn due to overloading and lubrication failure. However the rpm's drop as they should when it shifts. Discussion in 'E36/7 Z3 (1996-2002) (the revving and shifting comment sounds like the latter). Excessively revving the engine while using clutch control, or keeping the clutch partially engaged while accelerating with the gas pedal, can cause unnecessary damage to the clutch. The engine oil needs to reach its optimum viscosity to properly lubricate the main moving components in the engine. Not violently revs, no check engine lights, nothing. the failure recurred numerous times. Got a 2003 Ford Taurus SES, 6-cylinder, automatic transmission. Everything seems to be fine in terms of the engine because from cold start and even idle with revving the engine, there is no rumble. It’s like using a low gear on your pushbike. As race cars filed into Michigan's Empire Hill Climb, an aggressive, distinct rumble echoed through the town, which was easily distinguished over the other various revving engines. it kicks in when you push your car into higher RPM's. When these parts wear they will make noise. I am hoping to receive some ideas on the following symptom on my 1997 Buick Lesabre Custom. Belt noise can mean the belt is worn or loose. It has also made it possible to make the sound of engine which has irregular intervals of combustion. the manufacturer was notified and they stated. However, I've notice that under two circumstances while in Tow/Haul mode with my '08 Landmark hitched up that the engine begins making a sound like a helicopter. Park the vehicle in a convenient location and let the engine run. A simple check you can make to find out where the fault lies is to start the engine and turn on as many electrical components as possible. Four Common Car Noises, Their Causes, and How to Fix Them or your car shakes while driving at highway speed, find out why. It makes the noise in synchrony with the engine revving (i. If your engine revs up as you press down on the accelerator but your vehicle doesn't accelerate as per usual or as you would expect, it's a troublesome sign that can lead to a full-blown transmission failure. Free car sounds available to download in WAV and MP3 formats. If the van was going to remain stuck in neutral, I knew I was going to need a tow truck to come get me. That didn't help at all, so they then told me it was due to the all wheel drive. While some sounds are normal and many harmless, some need immediate attention, according to MIWA. After these events happened the car did NOT stop the engine at the red lights, despite the battery level of 4 to 5 bars. Dealers Technicians Say They Can't Fix It Or Don't Even Know What It Is Because It Doesn't Happen All The Time. Those who are accustomed to driving cars with automatic transmission might find that slightly bothersome. As the bearing wears out it will allow movement and that play will sound like tapping or clunking depending on how bad it is. Powered by the mixture of fuel and oxygen, combustion occurs when the spark from your spark plugs act as the trigger. Step one to the identification of a problem is listening to your car when it's signaling you there is a problem. When this happens, the car's computer system has trouble maintaining a proper fuel-to-air ratio. My tuscon revs it's RPMs while I'm driving and the drops back down. A normal automatic gearbox uses gears to match engine speed to road speed. I've noticed that while drivingnat a stable speed, for example, 50mph at 2k rpm, the car slightly revs up and down. At idle it sputters and sounds more like a little boat engine to me. Available for both iOS and Android at the low cost of $0. If it occurs when you press the clutch for gear shifting, the release bearing is likely to be damaged. Here's a few of the most common noises found in car stereo and how to fix or avoid them. I need your help. Whenever I accelerate, even up to 30-40 mph, my engine sounds pretty loud, especially when I am doing 70-80 on the highway. when it revs up it is going up and down between a few 100 rpms and it sounds like the engine is revving up. 2008 Nissan Armada has a ticking noise coming from bottom of vehicle only during driving. Belt noise can mean the belt is worn or loose. If your car loses power while driving, there are a number of potential causes. 5k rpm and idle. There is very little difference in driving a petrol or diesel vehicle, apart from the power curve being much lower down the rev range in a diesel car making the over all driving experience more relaxing, especially in town traffic. In order for a car to operate efficiently, it needs to regulate the correct flow of air, fuel and compression. / when driving my car the engine sounds like it is revving high to eliminate this i have to step on th 6 when driving my car the engine sounds like it is revving high to eliminate this i have to step on the accelerator for it to stop does anyone know what causes this. also i noticed the smell of gas. I have a 1994 Jeep GC Laredo V8 5. 9 (M44) startling engine stalls while driving. Click past the jump to see a more complete list of songs that Althouse's readers. While the engine is running spray it for 1-2 seconds at a time on various hoses that are directly or indirectly connected to the intake manifold. The term 'backfiring' describes any instance where car fuel is combusting somewhere other than the combustion engine. Along with the which seemingly comes and goes while driving, it also felt a bit sluggish. At times when it stopped it would also idle at 1,500rpm then after a short time and revving it myself it would drop back down to normal levels (below 1000rpm) but would continue this behaviour all the way home. Sometimes, your car loses power while driving due to a damaged air filter. What's that sound my vehicle is making? Here are 10 Car Noises to be Concerned About and what could be causing them. February 8, 2017. As soon as I put my foot on the accelerator, the noise would start again. The car goes around on the three screens enveloping me, while I remain static. I had it in the dealership and they first thought it was the front drive shaft and replaced it. Corvette C7 To Offer Engine Sound Management, Active Rev Match, Performance Data Recording Functionality 35. view details; apr 18, 2019 - avondale, az - engine tl* the contact owns a 2015 hyundai sonata. Currently just under half a tank of gas. Several times lately when I have been driving on the highway at a constant speed, the engine has switched suddenly to a much higher rpm. Car engine revving problem, need advice. Your car may also seem like it’s struggling, is suddenly underpowered, or isn’t accelerating like it should. So I am probably going to get a used one installed. No static in the speakers at all. When I push the accelerator pedal the issue will correct but then recur a short time thereafter. Now it's time to go for some speed. No sound from the engine during idling, regardless of pressing the gas to rev engine. Repair the vacuum hoses as necessary. Sometimes it smoothly "re-connects" and starts to accelerate again, or it could bang into gear. It's a loud whining that starts out as a high pitch and decreases. Not that there's. Mazda 3 making strange noise when accelerating I'll see if i can have my wife rev the engine while i record from the hood tomm. The source is clearly from the engine compartment. XVIDEOS Making Herself and Him Cum While Driving free. Get Revving Sounds from Soundsnap, the Leading Sound Library for Unlimited SFX Downloads. Strange (whining) noise while driving Hey guys, I just recently picked up a "new" 2004 5 door golf tdi 5 speed and loving it. I have changed the belttensioner on the sixe with water pump, but aoind is still there. Low rumbles from the tailpipe, a soft rhythmic hum from the engine compartment, even a slight thunk sound when you first turn on your air conditioner--these are all good news. A car behind you will look smaller in a convex mirror so it could be closer to you than you think. Those who are accustomed to driving cars with automatic transmission might find that slightly bothersome. If you hear a loud tapping or knocking sound in your engine, pull to the side of the road and call for road. A slow engine crank paired with this unfortunate noise means your battery is on the fritz. com Please bookmark us Ctrl+D and come back soon for updates! All files are available in both Wav and MP3 formats. If the noise is only present while driving it is likely related to the drivetrain. Royalty Free Car Sound Effects These high quality Car Sounds, Hot Rods, NASCAR, Race Car sounds are for multimedia producers who need permission to use the audio included in their projects. In addition to slowing fuel delivery, a vacuum leak may trigger the "check engine" light to come on. I have took it to a mechanic and he said it might be the timing belt or the alternater belt and its not the flywheel or clutch. Now that we have experienced some wichedly cold days, the sound is louder at start up and then will quiet down after driving a few miles. Have not changed octane or source of fuel recently. It's a loud whining that starts out as a high pitch and decreases. Squeal while braking can mean brake pads in a bad. I have changed plugs, fuel filter, oil filter, air cleaner, engine oil but there is no change. while driving approximately 60 mph the engine stalled and restarted. Hi Guys, I have a 2002 V40 with a B4184s2 Engine, I have been plagued for several weeks by an intermittant chattering noise coming from the top of the engin, the car even went through its MOT and the garage mechanic didn't know what the noise was, but he said it didn't sound like an "engine" noise. Car engine trouble is a worry for most of us and how to diagnose these troubles is a question asked by many people. Not that there's. If I turn the car off and back on again, the light is off, but after a few minutes it comes on again. There are already several answers discussing the technical details of revving, of which my favorite is the downshifting one (much more impressive, although it might not be the same "revving" sound you might be seeking). Humming noise when driving, goes away when turning right ? I have a 2006 Cadillac CTS 3. Fortunately, most car noise can be easily identified, and you can often resolve the problem on your own. The faster you go the higher that sounds like it's revving. The car sounds fine at idle. Engine revs and loses power when driving. The frequency of the ticking varies based on speed. 3 liter, from 40-65mpd, the engine will rev up then go back to normal. A car behind you will look smaller in a convex mirror so it could be closer to you than you think. Corvette C7 To Offer Engine Sound Management, Active Rev Match, Performance Data Recording Functionality 35. Alternator Whine. There can be many causes behind this jerking motion, including problems in the starting system, fuel supply, engine or the exhaust pipe. No sound from the engine during idling, regardless of pressing the gas to rev engine. Try to start the car, and listen to the sound it makes. The mechanical tensioner can wear out over time and vibrate excessively while the engine is under load. fixes the problem for good because i really cannot afford to put much more money into this car. When I'm driving along the dual carriage way it takes ages to pick up speed yet the car is over revving. Noticed a roaring sound coming from the engine of our 2011 srx. ) Then, after a little while, the engine returns to the lower rpm. Free car sound effects. Question: My daughters 2008 Chevy Cobalt is making a humming noise. while driving various speeds, the vehicle stalled. 0 low miles, and I'm having the hardest time figuring out why the rpms rev while driving doesn't do it all day or everyday. The RPMs are most certainly increasing at this time. Generally, an upper engine noise issue will be a ticking sound, while a lower engine noise will be associated with a knocking sound. Step two is for you to identify where on your car the noise is coming from. If the car starts making the sound as I'm about to stop at a light then the whole time Im idling the car will be squealing until I press on the gas to resume driving. What on earth is it? A turbo leak?. Is the noise heard only when driving and turning corners? 6. It sounds almost like there is an electric motor running on the car and it follows the revving almost perfectly. My brother was driving the car back home for me today and he was running it through the rev range at WOT. If it stalls on the highway, you could be involved in a very serious accident. the manufacturer was notified and they stated. This is very annoying and sometimes embarrassing. While some sounds are normal and many harmless, some need immediate attention, according to MIWA. There are various possible reasons your car engine might sounds like an airplane taking off. Phototim - that sounds like how it used to be, exactly the same. 2 you can now experience RevHeadz Engine Sounds while driving your own car using OBD-II (On-Board Diagnostics / OBD2) communication. After these events happened the car did NOT stop the engine at the red lights, despite the battery level of 4 to 5 bars. OR, when the transmission shifts from one gear to the next, the engine revs during the shift rather than smoothly shifting to the next gear and the engine rpm dropping accordingly. Two days ago it was sluggish again and I started to hear a rattling sound, I checked the oil again and it was full. This discharge can manifest itself as a clicking sound. If you're in traffic; even slow traffic, and your car stalls you might get rear-ended. Hey guys, Well no sooner do I get her back together does she go down once again. Cannot tell for sure if there is a clutch on the fan itself or if it is directly mounted to engine shaft. I don't know what could possibly be the cause of this noise. The spark plugs can also produce clicking noises on their own if they become loose. Some last well over 100,000 miles without causing any concerns, but every now and then a customer comes in with a loud noise problem. It's like driving around town in 5th gear in your car, when second gear is what's required to move the load while maintaining the correct engine rpm. As the bearing wears out it will allow movement and that play will sound like tapping or clunking depending on how bad it is. when you take your foot off the accelerator it stops then back on it starts again) however the noise carries on slightly after the revs have died down to idle. If there's experience a strange buzzing noise coming from the engine of your car, especially if it's an older model, there could be a number of causes. What's the problem? A. Any compromise to this process could result in a significant loss of horsepower. The car is a 940 Turbo with a manual transmission and overdrive. could be a pulley bearing or a belt that is too tight. If your engine revs up as you press down on the accelerator but your vehicle doesn't accelerate as per usual or as you would expect, it's a troublesome sign that can lead to a full-blown transmission failure. In addition to slowing fuel delivery, a vacuum leak may trigger the "check engine" light to come on. Car was towed to the dealership. Rod knock comes from a bad bearing in your connecting rod. today i was driving and at a red light. 2 you can now experience RevHeadz Engine Sounds while driving your own car using OBD-II (On-Board Diagnostics / OBD2) communication. 6 16valve zetec. If you notice your engine is suddenly louder than normal it could be caused by a number of issues, not all of them bad. If you can hear a loud metallic vibration, it usually means that something is touching the exhaust pipe or that a clamp, support bracket or mounting is loose. Wear in these components will cause a humming noise as they’re moving. Phototim - that sounds like how it used to be, exactly the same. now every time i turn the car on there is like a revving noise and when i drive there also is. In fact, your car engine can even stop running while you're driving. The result is vacuum leaks. starter fluid at the fitting and if the engine revs up then that is was it is. I don't know what could possibly be the cause of this noise. Sometimes even adding fluid doesn't solve the problem, a technician should be able to identify the cause. when i pressed the gas i heard a loud pop and my engine making a strange noise. Is Your Car Making a Scraping Noise While Driving. The car is now blowing white smoke when you rev it up,. While driving down the freeway at 70MPH, the engine stalled and I struggled to get the car off the road before being hit from behind. It also lopes for a minute or so sometimes when I start it. The hesitation sounds more like a torque converter going out, but it sounds like you have several problems going on. Revving the engine won't speed up the process. A vacuum leak will usually cause the car to idle higher. I noticed this weird thing my car does when I'm coasting (and yes I know I'm a bad man but car is thirsty). If it stalls on the highway, you could be involved in a very serious accident. However, when driving at lower speeds, diesel engines are still audibly noisier than petrol/gas. A driver might not notice these signs in normal day to day driving but they become abundantly clear when driving up a steep hill or when quickly trying to accelerate into fast moving traffic. Free car sound effects. Discussion in 'E36/7 Z3 (1996-2002) (the revving and shifting comment sounds like the latter). 2 dCi has developed a whistling noise when accelerating in the Turbo range (1800-3000 RPM or so). Here are the sounds that have been tagged with Engine free from SoundBible. If you're in traffic; even slow traffic, and your car stalls you might get rear-ended. You can’t have a good working engine without fresh pure gasoline flowing into it at all times. My tuscon revs it's RPMs while I'm driving and the drops back down. when we got. It Is Such A Violent Bang And Jerk. This is really bad when stopping because the car wants to accelerate itself when I'm trying to stop. Because it's a louder-than-normal engine sound, I suspected my exhaust system and took the car to Meineke for an inspection. This discharge can manifest itself as a clicking sound. The sounds in this category are royalty free and available for immediate download as high quality stereo WAV files. while driving approximately 50 mph, the check engine indicator suddenly illuminated followed by a loud knocking noise coming from the engine. After these events happened the car did NOT stop the engine at the red lights, despite the battery level of 4 to 5 bars. When I put the car in neutral, the car revs high sometimes increasing in rpms. It turned out to be a MAF sensor. It’s like using a low gear on your pushbike. Heavy oil or crude oil smell - fumes are blown into cab from crankcase vent on front of engine Relocate the blow-by bottle by extending the vent hose. Got a 2003 Ford Taurus SES, 6-cylinder, automatic transmission. When I push the accelerator pedal the issue will correct but then recur a short time thereafter. However the rpm's drop as they should when it shifts. I returned the car. But it was very loud. I am looking to get another oil change, but not if it makes the car even worse. It also lopes for a minute or so sometimes when I start it. Hi Guys, I have a 2002 V40 with a B4184s2 Engine, I have been plagued for several weeks by an intermittant chattering noise coming from the top of the engin, the car even went through its MOT and the garage mechanic didn't know what the noise was, but he said it didn't sound like an "engine" noise. There are three symptoms that are vexing me: 1) When idling, the engine will rev up and down all by itself, fluctuating between 600 and 1400 rpms or so. Dealers Technicians Say They Can't Fix It Or Don't Even Know What It Is Because It Doesn't Happen All The Time. My brother was driving the car back home for me today and he was running it through the rev range at WOT. 2 16V Expression 5d 2001, it's in a pretty good condition but there is one major problem with it; Sometimes when I'm driving along, the revs will suddenly go really high and then go back down to normal without any change to the speed. Free car sounds available to download in WAV and MP3 formats. I returned the car. 6 (115) petrol Focus has just started to make a whiney whirring noise. i have no idea where it's. Here's a look at car rattling noises from both inside and outside of your vehicle and what they might represent. Any help would be. At first i thought it was the muffler of a nearby car. I revved the engine while in neutral a few times to try to see if I could get the rpms to drop but that didnt work. So go check the fluid in your car and you might want to replace it if necessary. It was Ford Mondeo and was doing the same thing. Phototim - that sounds like how it used to be, exactly the same. I own a 2006 Prius. I pulled the van over, turned the car off, and then turned it back on again to see what would happen. When I am stopped at a stoplight or stop sign, my car's engine unexpectedly revs up. It also lopes for a minute or so sometimes when I start it. Rod knock comes from a bad bearing in your connecting rod. Any ideas will be greatly appreciated!. Changes to road and weather conditions. Now that we have experienced some wichedly cold days, the sound is louder at start up and then will quiet down after driving a few miles. The car idles and drives perfectly at slower speeds but on the highway you can really feel the pulses and hear the exact making sounds. Step two is for you to identify where on your car the noise is coming from. what is the problem??. When you hear brake noise while your car is in reverse, this can be a sign that there is one of a few possible issues occurring. If the engine is revving excessively, you probably should have shifted to a higher gear already. I am always worrying over this dang noise. When a timing belt snaps, the engine no longer builds the compression it needs to run. Putting the vehicle in Park or Neutral reduces the load on the tensioner, which usually quiets it down. The techniques below are optional. Cars make all kinds of sounds and most of them are completely normal signs of a well-tuned machine. no guys the whining noise is constant its very loud when i start it up but it dims down. Noises When Shifting. big_rig wrote:okay, so my car made the noise with the tech in the car. However there may be other reasons to the same problem. It didn’t happen when the truck was cold but would show up when it had warmed up. A simple check you can make to find out where the fault lies is to start the engine and turn on as many electrical components as possible. The engine revs and the car isnt going anywhere. In that sense, driving it to work is "bad" for it. That 1989 Corolla of yours makes all sorts of noises Toyota hoped it never would, most of which are as harmless as they are annoying, yet some of which can be as detrimental as they are deafening. For upper engine noises related to. Whenever they start up this car, or before they turn it off, they make sure that they rev the engine loudly, in case we all forgot that they have a Porsche. If it stalls on the highway, you could be involved in a very serious accident. We usually refer to an exhaust backfire as a "backfire", and backfiring through the carb as "spitting" or "coughing". When you accelerate it starts humming loudly like the engine is revving up or like it isn't shifting properly. Belt noise can also come when one of the pulleys the belt is riding on starts to fail. Step two is for you to identify where on your car the noise is coming from. Listen for a hissing sound which is a key indicator of a vacuum leak. it kicks in when you push your car into higher RPM's. When I push the accelerator pedal the issue will correct but then recur a short time thereafter. The 2015 Nissan Rogue has 2 problems reported for engine revving while driving. In addition to slowing fuel delivery, a vacuum leak may trigger the "check engine" light to come on. Alternator Whine. There is very little difference in driving a petrol or diesel vehicle, apart from the power curve being much lower down the rev range in a diesel car making the over all driving experience more relaxing, especially in town traffic. One of the most frustrating aspects of car audio is noise in the system. When I use just a standard Bluetooth earphone while in the car to make the call it's as clear as a bell. · Does the noise happen while turning or going straight? · Is the car making noise while accelerating or braking? The list of questions can go on forever, so the best diagnosis is to pay attention when the vehicle is making the noise and make a mental note or write it down so you don't forget. Hi all, Here's a pretty weird one. I am experiencing an issue where while under normal driving conditions the engine makes a high revving sound while the tachometer indicates that the RPMs are dropping. No static in the speakers at all. Also, as I come to a stop, there's a whining noise in the front of the car. and what you are describing sounds more like a. When a timing belt snaps, the engine no longer builds the compression it needs to run. Another source of impaired fuel delivery is a vacuum leak. If your engine starts getting any sounds then you can determine that the engine has a commencement of a wicked problem. A heat shield noise is a type of rattle you hear while your car is idling, or at a specific engine speed or RPM. This was sitting in neutral in my garage. It doesn't make the noise when I am driving and I put in neutral. I ONLY hear the ticking during acceleration or when the motor is under load. At 52k i change the sparks, air filters and a Gunk gas treatment. Feels like driving over reflector bumps in middle of the road. descending down a mountain road), where if the driver uses the brake pedal to control the vehicle's speed, the vehicle's brake pads will overheat and fail. Discussion in 'E36/7 Z3 (1996-2002) (the revving and shifting comment sounds like the latter). when we got. What's That Noise? 10 Ways to Identify Car Issues By the Sounds It Makes. You’re driving down the Federal Highway, praying to get out of the traffic jam soon, and suddenly, your car sputters and just, dies. The result is vacuum leaks. If you hear a loud tapping or knocking sound in your engine, pull to the side of the road and call for road. Anyway, do you have any idea what could be making that noise? its a 2003 mitsubishi spyder eclipse convertible with 80,000 miles on it. --engine frequently accelerates by itself or maintains speed with foot off gas pedal while driving between 20-60mph, and is ready to jump off the line after a stop. Free car sounds available to download in WAV and MP3 formats. It also lopes for a minute or so sometimes when I start it. When driving, slightly accerating, the truck is doing about 1100 rpm in its 6th gear. 2008 Nissan Armada has a ticking noise coming from bottom of vehicle only during driving. If it stalls on the highway, you could be involved in a very serious accident. It also "jumps" as if it is not changing gears properly. A few days ago I noticed that my Laguna 2. It doesn't make the noise when I am driving and I put in neutral. If it stalls on the highway, you could be involved in a very serious accident. My buddy was driving my 2006 Chevy equinox awd the other day when the car got hot and cut off they put water in it Jumpstart ed the car and drove it home it would not drive over 25mphalso there's a rattling noise coming from either the top or bottom in front of motor the car will run and stay running with no problems except the rattling noise sound like a chain being pulled down set of metal. The frequency of the ticking varies based on speed. Race cars, hot rods, NASCAR, drivebys, engine starts. Is the noise heard only when the vehicle is put in gear? 4. However, I've notice that under two circumstances while in Tow/Haul mode with my '08 Landmark hitched up that the engine begins making a sound like a helicopter. 3-liter V12 that nearly touches nine large is a different matter. 2008 Nissan Armada has a ticking noise coming from bottom of vehicle only during driving. 140000 miles. When you are driving a manual car, a whining sound means a completely different story. (Automatic 2008 Aveo) it'll give less acceleration / rev the engine more if you hit the gas. A car that jerks when accelerating, when starting the engine or even while driving at constant speed is showing symptoms of a problem.