Clunking Noise When Letting Off Gas?

[HausCobra]

Why is it teh car makes a clunking noise every time you take your foot off teh accelerator. Is this common in all cobras.

Thanks

 

[Iamchris]

How many miles? My Mach clunked a bit when I got it... it could be breaking in.

 

[redstaf426]

It's common,every Cobra is like that

 

[Rootus]

Yup, they all do it. It's because the driveline has quite a lot of slop in it. On a live axle car you don't really hear it because the differential is seperated from the car by the suspension, but on an IRS Cobra the differential is attached directly to the car, so you hear it clearly. Sucks, it's one of the few things I wish there was a fix for.

 

[PDubs]

Yeah, it's an unlisted "feature" of our cars.

 

[I-CAN-STANG]

Yeah its common alright! :nonono:

 

[DR. WU 2000]

Really bad in lower gears when you are going slowly, hate it.:nonono:

 

[HausCobra]

1200 miles.

 

[hmwave]

It's easy to drive around it.
Mine clunks like crazy if I let it but most of the time I drive around it. It's not all that difficult to do.

 

[SALEENGTROUSH]

no clunk with 13k..... then take it in for a new real end... cause mine was leaking... now i have the clunk bad:shrug:

 

[Grey03Cobra]

I heard the loud clunk once, but it turned out I ran over a cat.

 

[NHRACobra]

Mine clunks as well. I drove a 03, and it wasn't bad. So go figure?

 

[CobraBob]

Originally posted by Rootus
Yup, they all do it. It's because the driveline has quite a lot of slop in it. On a live axle car you don't really hear it because the differential is seperated from the car by the suspension, but on an IRS Cobra the differential is attached directly to the car, so you hear it clearly. Sucks, it's one of the few things I wish there was a fix for.

Exactly! An unfortunate annoyance we have to live with. I hated it!

 

[05 Roush]

Mine doesn't clunk when letting off the gas. But it does clunk HARD when I shift into 1st. It's really bad, even when I drop it slowly into gear. Even my dealer said it's a little too clunky. The whole car thunks.

I'll push them to replace the trannie if I can. Needs a TOB sleeve anyway.

 

[wldstang91]

The dealer told me it was common.... i figure it to be the U joints i rocked the car back and forth while it was off it cluncked pretty bad sounds a lot like U joint slop to me it was really bad when i was a rookie at driving the car but now ive learned to deal with it.

 

[rmgtc01]

Just turn up the radio and open the windows. Everthing goes aways at 100mph!!

 

[BoneCrusher]

Originally posted by Grey03Cobra
I heard the loud clunk once, but it turned out I ran over a cat.

:lol:

 

[Silver2003Cobra]

working under my 03 Cobra, I can turn my driveshaft (with the car in gear, and e-brake set) about 3/8's of an inch.. that's what's causing the "slop" that your hearing in your drivetrain..

 

[Mike_Hawk]

Originally posted by Silver2003Cobra
working under my 03 Cobra, I can turn my driveshaft (with the car in gear, and e-brake set) about 3/8's of an inch.. that's what's causing the "slop" that your hearing in your drivetrain..

That can't be too good right?

 

[11secCobra]

its because the lash of the gears is set really loose from the factory. take it to a performance shop and get them to set up your gears correctly, and it wont do it