Audi - A6 :: 1998 - Banging Noise When Accelerating From A Dead Stop
Feb 4, 2012
I have a 98 Audi A6. Immediately when I hit the accelerator from a dead stop I hear a slight bang that seems to come from under the car in the area under the front drivers seat. It only happens when I hit the gas and the car starts forward. I'm not putting the pedal to the floor either, just a nice gradually start from a dead stop. This is the only time that I hear this noise, nothing while driving or making turns. The noise sounds like when you might squeeze and empty tin box! that distinct bang you hear. What might this be?
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I have a 1991 Audi 100 that is flawless and paid for. 215,000 miles and doesn't leak or use a drop of any vital fluid. It does have one problem: While under load and accelerating from a dead stop, about 75% of the time the engine hesitates as if it is not getting any fuel. You step on the accelerator, get no response for one second and then off you go, no problem. On occasion while accelerating from a dead stop, the engine will quickly cough, pop like a backfire, and then catch. I have replaced the fuel filter, and through accident inadvertently found out that I seem to have excellent fuel pressure. While at speed, I seem to have little or no problem with instant acceleration when the accelerator is pressed.
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I'm experiencing an unusual grinding noise when accelerating from a dead stop but only in this specific situation.
1. When battery is at a low state of charge and the AC is on, therefore, whenever I slightly step on the gas the engine will immediately start.
2. Only under this condition, when I slightly press on the gas and the engine will start to charge the battery and propel the car at the same, there is a slight grinding noise coming from the front of the car. I don't know what this noise is, it sounds like gears grinding, it's very light though.
I know it's not the brake accumulator noise, because that's a whole different sound, and also this only happens under the condition I described above. When battery is low and ac is on, and the engine will need to start right away even when gas peddle is slightly depressed.
The best way to describe the sound is if you were to take a soda can and cut it in half and rub the two halves together (the edges) it sounds like that.
Also, there are no lights on the dash. It's a 2009 with about 73,400 miles.
The transaxle oil has already been changed maybe 10,000 miles ago.
The noise started recently, at least I only noticed it recently since it's summer and I have the ac on much more. There are no drivability issues, but the thing is, this noise was not there before, I know I'm not hearing things. You know when you drove a car for quite some time you will naturally know what sounds are normal and what sounds are new.
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Sometimes, when I take off from a red light or stop sign, my car makes a thump. This feels as if it is under the car, not a transmission shift noise. It would seem to me that it has to do with exhaust or fuel???? I am guessing.
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My wife and I are new Elantra owners, car is just about to hit 9000 miles on it. I don't know when the noise started happening, but wasn't too long ago. My wife is okay with it, but as for me I find it rather annoying that the car is so new and already making noises. I call it a click but she describes it as a thunk.
Here's the details. The car is an automatic for starters. The noise mainly happens when accelerating from a dead stop. I'll be at a red light and when it turns green, I let the brake go and gently step on the gas and click...there is the noise. Its just a single click, loud enough to annoy me and loud enough that I could hear it when the radio volume is set to 12 or so.
It has also happened mid driving when I release the gas pedal to slow down without using the brakes. Right when I release it, I hear the click...once again a single click.
Now I have taken it to the dealer as a concern because that click wasn't there when I bought the car. They told me it was normal and after waiting 2 hours for a simple oil change to be completed I wasn't ready to argue with them. But I am getting to that point that I'm ready to argue with them, considering the car is so new and still under the warranty.
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I am going to buy a cheap 2004 CRV from work. They think it needs a wheel bearing, and it might.. However I think the sounds we are hearing is a bad motor mount. When accelerating from a dead stop it makes an odd noise that sounds like a wheel bearing, but it is quiet at speed and while jerking the wheel.. There is no weerrweerwerrr... In Drive if you have your foot on the brake, and hit the gas the motor rocks back further than I think it should. After looking at the mounts themselves though, the only one that looks bad is the driver’s side trans mount (near the air box). It looks like the rubber is broken.. So If that is my bad mount would the motor still rock, or could I have another bad one somewhere??
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Intermittent chirping noise when accelerating from a stop. It sounds like a brake chirp but it comes and goes. Not brakes. Changed pads and turned rotors chirp is still there.
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This auto has 143,000 miles on it. I recenty noticed a creaking noise from the left front when accelerating from a dead stop. The shop I have used for 15 years said that the motor mounts are deteriorating and should be replaced. I trust the guy but would like to avoid the $1,400 repair. There are no symptoms other than the ocassional noise.
What is the downside of ignoring his recommendation? What other symptoms can I expect if I delay the repair? Can this be a serious safety issue? I plan to keep the car for another two years unless I bite the dust first or the engine falls out.
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Just owned a 2011 hyundai santa fe AWD(48002 miles). At 50,100miles I start hearing this banging noise from the rear (quite loud) when accelerating. Usually occurs after 80km/h. Also occurs at low speed when you let your foot off the accelerator.
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Went out this morning, fired right up, then banging noise and a slapping feeling internal to the engine, oily smell, and dead. I fear the worst.
Can one transplant a newer version v10 into these things or is it time to start parting it out and shopping for a new one?
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I recall some folks (with certain VIN#s) getting a TSP for correcting the lag when accelerating from a dead stop. I asked my dealer about it during routine service several months ago, but no fix at that time.
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Our 2015 es350 with 2,500 miles hesitates when accelerating from a dead stop, such as from a stop light. We are told this is to be expected with this vehicle. The dealership test-drove the car and say there's no problem. But this hesitation is unlike any other car we've experienced.
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My 1998 Explorer is making a terrible banging noise when driving. It appears to come from the rear. It only occurs when i step on the gas, gives a bang and the car shudders lightly. The bang can be gone for 10 - 30 seconds, and all of a sudden appear again. If I step hard on the gas, it will make a bang! bang! bang! noise.. If let my foot off the gas, it rolls quitely without any noise.
I have greased the slip yoke, inspected the U-joints, checked the rear calipers, opened the rear axle/differential plate - no metal parts or excessive wear were observed.. The transmission runs smoothly, there are no other noises apart from the bang. It is as if someone is hitting the car with a hammer from underneath...
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98 Ford Escort SE
Been having acceleration issues with the Escort for a while now. The repairs I've made on the vehicle so far are; new fuel pump, coil pack and mass air flow sensor cleaning. Those are in order.
Now onto the issue. From a dead stop and sometimes while driving my vehicle will give acceleration issues though mostly from a dead stop. Checked the tranny fluid and it was a light brown with bubbles(?) so thought I'd do a fluid change but with the work required wanted some input before ripping into it.
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Bought an 05 FX4 SuperCab in May - been in shop twice for a "clunking" sound when accelerating from a dead stop. Dealer says it's "operating as intended" and that no damage was being if I continue to drive. I thought it was a rear problem with the limited slip. Dealer says it's the tranny and that Ford is looking into the problem (apparently quite a few are coming back). She runs smooth and shifts fine once she gets going. Just starting from a complete stop feels painfully wrong.
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My wife was driving this morning and the car stalled when she was accelerating from a stop light. Battery light came on and she could not restart the car no power. When I got there she was able to start the car again. I drove 10 feet when the car stalled again. Noticed that the EPC came on smelled rotten eggs or sulfur from the exhaust.
Used jump cables and car started, battery light gone but EPC light came on and stays on, no blinking. I drove back home about 13 miles and no problem. Took battery to test and did not hold charge, I will replace battery. Car was at the dealer for two weeks to get the CAM, cam follower and high p fuel pump replace. Is just a battery issue or another issue for the EPC light?
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I have a 2008 Audi A4. Today while at a stop light, suddenly, the 'check oil pressure' light came on. Immediately after the car died. I tried to restart to no avail. After pushing the car to a safer stop, I checked the oil level. It was perfect. I let thecar sit while I did some quick research on my smartphone after which I tried again to restart. The car was as if the starter was dead. It did not turn whatsoever. Next, a warning light came on to 'tighten fuel cap', which was completely secure. Then, a warning that my headlights were misaligned. I started checking fuses....all fine. The cars fan started and the check oil pressure light came on again. The car still will not turnover whatsoever, however, everything else works fine; lights, radio, fan, etc.... So, I called the dealer and theyre clueless unless they hookup the sensors.
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Yesterday in MN when it was -17 while on the highway around 5 pm my 96 Audi A6 started accelerating by itself. I was able to get of the highway and to a parking lot where it idled in park at about 4000 rpm's before I turned it off and let it sit for several minutes. I started it twice the second time it did not rev up to 4000, it was just normal. My question is this a sign of something terrible or just the cold messing with my old car? Should I have something specifically checked out?
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So what I might have thought to be a transmission lag may be actually a dead zone in the pedal. When pressing the pedal from dead stop nothing happens until you press the pedal down further. Any way to reduce that or eliminate?
I'm referring to NA 2.5L engine with auto trans.
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My Corolla started making a new noise recently. It only makes this noise when I'm moving/giving the car gas. The noise sounds like the noise from those safety strips on the side of the interstate but not quite as loud coming definitely from the front end, possibly isolated to the driver side. The faster I go the more apparent the noise is. It's not really a click noise it's more of a dull sound. It occurs at low speeds and high speeds, but not when idling. It's almost as though the engine is running hard but I'm not convinced it's originating from the engine.
The engine idles normally and I don't think there is anything wrong with the bearings or CV joints as I have replaced the left CV joint/axle and the right front bearing recently.
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Jeep 2000 Cherokee
So I have this thumping noise, almost sounds like something is loose.The noise occurs for a few seconds when I accelerate from a dead stop and then goes away, it returns when I slow down and almost come to a complete stop.The noise also goes away when I put her into 4wd.The thump/rattle sounds like it is coming from the center counsel area and directly under the floor board in the driver seat.My car changes gears smoothly up and down while driving.
I was told it might be a transfer case problem and that it might need to be rebuilt, which makes me worry.
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