I recently bought a 2001 mustang gt. It has 70k miles on it the car is clean and I carfaxed never been hit. Im usually a chevy fan but have many friends who have mustangs and kind of fell in love with them. After buying the car I noticed a clunking noise under the car it sounds like its coming from the transmission. Im not sure if the mounts on these cars usually loosen up. Its an automatic so if anyone can give me some advice on what usually makes a clunking noise on these cars that would be awesome. It sounds like its getting worse so I would like to solve the problem now.
Just bought a mustang. Need help!!!
- Thread starter sscamaro41087
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Rejekt
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Yeah.... that could be anything. I'd put it up on stands and check it out. If you can't see anything obvious then take it to a shop and have them look at it so you at least know what's going on.
trinity_gt
10 Year Member
Clunking from a Mustang drivetrain? Say it isn't so... 
When are you hearing this noise? Acceleration? Decel? Transition between coast and drive/overrun? When the trans shifts?
I dunno. My 5-speed GT makes some "high quality" sounds from the driveline and it's done it basically since new. As I back the car into the garage and an feathering the clutch, I can easily get clunks that would do a dump truck proud depending on how I load/unload the thing. Sometimes when I shift to first from neutral at a light I'll hear similar things. I gave up worrying about it long ago. I've been under the thing and checked everything and all is good and tight.
In my case, I think it's just tolerance stack from the fit of the clutch disc on the input shaft splines all the way back to the tolerance between the axles splines and the side-gears. Your auto won't be a whole lot different.
Still, get the U-joints and mounts looked at just in case. The car is 8 years old now and it probably wasn't babied all those years so you never know.
When are you hearing this noise? Acceleration? Decel? Transition between coast and drive/overrun? When the trans shifts?
I dunno. My 5-speed GT makes some "high quality" sounds from the driveline and it's done it basically since new. As I back the car into the garage and an feathering the clutch, I can easily get clunks that would do a dump truck proud depending on how I load/unload the thing. Sometimes when I shift to first from neutral at a light I'll hear similar things. I gave up worrying about it long ago. I've been under the thing and checked everything and all is good and tight.
In my case, I think it's just tolerance stack from the fit of the clutch disc on the input shaft splines all the way back to the tolerance between the axles splines and the side-gears. Your auto won't be a whole lot different.
Still, get the U-joints and mounts looked at just in case. The car is 8 years old now and it probably wasn't babied all those years so you never know.
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