Popping noise...what is it?
08-28-2008, 11:49 PM
#1
Staging Lane
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Popping noise...what is it? On my '05 GTO is hear a popping noise when moving in reverse with the wheel cocked just slightly in one direction. It also makes the noise when I make heavy stops or sudden acceleration in drive.
I've checked the drive shaft for play. It seems to have about a 1/2 inch play in rotation. Everything in the suspension looks to be sound. The noise is kind of a hollow popping. It doesn't really sound like metal but I'm sure it could be. The car is also accelerating funny. If I give it 1/4 pedal it hesitates and then jerks and smooths out.
Someone help me out. What should I look at? What could be causing this? Thanks in advance.
I've checked the drive shaft for play. It seems to have about a 1/2 inch play in rotation. Everything in the suspension looks to be sound. The noise is kind of a hollow popping. It doesn't really sound like metal but I'm sure it could be. The car is also accelerating funny. If I give it 1/4 pedal it hesitates and then jerks and smooths out.
Someone help me out. What should I look at? What could be causing this? Thanks in advance.
08-28-2008, 11:54 PM
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On my '05 GTO is hear a popping noise when moving in reverse with the wheel cocked just slightly in one direction. It also makes the noise when I make heavy stops or sudden acceleration in drive.
I've checked the drive shaft for play. It seems to have about a 1/2 inch play in rotation. Everything in the suspension looks to be sound. The noise is kind of a hollow popping. It doesn't really sound like metal but I'm sure it could be. The car is also accelerating funny. If I give it 1/4 pedal it hesitates and then jerks and smooths out.
Someone help me out. What should I look at? What could be causing this? Thanks in advance.
I've checked the drive shaft for play. It seems to have about a 1/2 inch play in rotation. Everything in the suspension looks to be sound. The noise is kind of a hollow popping. It doesn't really sound like metal but I'm sure it could be. The car is also accelerating funny. If I give it 1/4 pedal it hesitates and then jerks and smooths out.
Someone help me out. What should I look at? What could be causing this? Thanks in advance.
08-29-2008, 07:53 PM
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On The Tree
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All GTOs have a bit of driveline lash. It's because of the design of the two piece driveshaft. Is yours and M6? It's more pronounced in an M6 as the auto keeps the driveline loaded.
09-01-2008, 12:56 PM
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Staging Lane
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it's an auto. When I first got the car at 8000 miles it had a little noise and no reverse popping. It is a lot worse now. It seems to be the same noise which points to the drive shaft but is no side to side play but there is about a half inch in play when rotating it.
09-01-2008, 05:37 PM
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Hmmm, that's odd. I've heard of it happening on the M6s, but not the A4s. I haven't had it happen, but I'll hear a pop from time to time putting it into gear. I have an auto as well. The only popping I've ever had was when turning tight and it was a rear gear fluid issue. I went from Torco to Mobil 1 with GM FM and has not reoccurred. I'm not sure that's the same as what is happening here.
09-12-2008, 05:47 PM
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I switched to Royal Purple for all the oils with an LSD additive to be safe. I also have about a 1/2inch play in rotation on the driveshaft into the rear diff. I was told by a mechanic buddy that this is common and the lash needs to be adjusted. But I'm still not sure if that is the problem or if that is the only problem. What is the standard warranty for these guys? I was told 20,000 miles was the warranty it is an 2005.
