Rear end problem..advice? - Lone Star Stangs

XtremeStang · 07-24-2005, 04:31 PM

I just purchased a 2002 Gt and when i take turns at a slow speed such as coming into my driveway the rear end makes a clunking sound. Also if i accelerate and let off the gas the car will rock forward and back a lil with the same clunking sound. Does anyone know what may be wrong??

**bighoss88lx** · 07-24-2005, 10:38 PM

Sure its not a u-joint or loose pinion flange bolts?

**TrueBlueVenom** · 07-24-2005, 10:55 PM

might be loose lug nuts. loosen them then re-torque them down.

The Diesel · 07-24-2005, 11:04 PM

Just look for loose things under the rear of the car and in the trunk.

XtremeStang · 07-25-2005, 01:10 AM

Ill take a look at that but i dont think its loose bolts because when
you drive it you can tell that its something big moving. My dad
took a look at it and said it was the rear end. He has worked with
cars alot and thinks someone could have raced alot and messed it up.
He also checked the drive shaft and said it seemed to have a lil
more play than it should. I just didnt know if anyone had encountered a problem
like this before. Thanks for the imput so far. I will check those things to make sure.

**bighoss88lx** · 07-25-2005, 10:18 PM

Quote:

Originally Posted by XtremeStang

Ill take a look at that but i dont think its loose bolts because when
you drive it you can tell that its something big moving. My dad
took a look at it and said it was the rear end. He has worked with
cars alot and thinks someone could have raced alot and messed it up.
He also checked the drive shaft and said it seemed to have a lil
more play than it should. I just didnt know if anyone had encountered a problem
like this before. Thanks for the imput so far. I will check those things to make sure.

If there is a lot of play in the driveshaft and the u-joints are good and the bolts are tight chances are your ring and pinion are worn bad. Normally they will whine but I have seen it bad enough to make a clunking sound.

XtremeStang · 07-25-2005, 11:45 PM

If thats the problem like u and i think the owner must have really messed up the rear end. I bought the extended warrenty but it doesnt take effect for 30days and 1000 miles. I just hope it doesnt go out before that time. Thanks

**bighoss88lx** · 07-28-2005, 08:59 PM

Quote:

Originally Posted by XtremeStang

If thats the problem like u and i think the owner must have really messed up the rear end. I bought the extended warrenty but it doesnt take effect for 30days and 1000 miles. I just hope it doesnt go out before that time. Thanks

Well its not a real common occurence but I have seen them come in with under 50,000 miles and the differentials are beat to shiet.

blackgt04 · 08-02-2005, 09:49 PM

Quote:

Originally Posted by XtremeStang

I just purchased a 2002 Gt and when i take turns at a slow speed such as coming into my driveway the rear end makes a clunking sound. Also if i accelerate and let off the gas the car will rock forward and back a lil with the same clunking sound. Does anyone know what may be wrong??

i found out today that all the new fords[trucks and car ]have rear end problems and there are dtbs out on them. hopefully that will help.

roostracing · 08-11-2005, 09:12 AM

if the guy raced alot perhaps he put in a detroit locker? I have one in my mach and its does exactly what you are saying....if not then i would assume the posi unit is messed up and time for a replacement...stock unit..ford trac lok...about $250...hope this helps

XtremeStang · 08-11-2005, 01:33 PM

Thats pretty sad when all the cars have rear end problems like that.
I think he just may have beaten the rear end but im taking the car in today. i took it a week ago and they said that somthing on the ebreak cable was loose and fixed the problem (BS) it still does it. everyone seems to agree that its most likely the gears or posi but ford is to lazy to try to fix it. its under warrenty tho so they will have to pay for it. Thanks for all your help i will let everyone know what happens.

07-24-2005, 04:31 PM	#1
XtremeStang Registered User Join Date: Jul 2004 Location: San Antonio Posts: 224	Rear end problem..advice? I just purchased a 2002 Gt and when i take turns at a slow speed such as coming into my driveway the rear end makes a clunking sound. Also if i accelerate and let off the gas the car will rock forward and back a lil with the same clunking sound. Does anyone know what may be wrong??

07-24-2005, 10:38 PM	#2
bighoss88lx Killing is my Business...And Business is Good! Join Date: Aug 2003 Location: Elmendorf, Tejas Posts: 5,960	Sure its not a u-joint or loose pinion flange bolts? __________________ 1988 Mustang LX

07-24-2005, 11:04 PM	#4
The Diesel AKA silver1988stang Join Date: Mar 2004 Location: SWAT Land! Posts: 2,047	Just look for loose things under the rear of the car and in the trunk. __________________ XplicitPerformance.com

08-11-2005, 09:12 AM	#10
roostracing Registered User Join Date: Aug 2005 Location: south texas Posts: 116	if the guy raced alot perhaps he put in a detroit locker? I have one in my mach and its does exactly what you are saying....if not then i would assume the posi unit is messed up and time for a replacement...stock unit..ford trac lok...about $250...hope this helps __________________ Tricked Out Racing 1991 Mustang Coupe (white) 5 spd 13.26 @ 100 mph (stock uncracked motor) 1.68 best 60 ft. 2009 Harley Davidson Crossbones (black denim)

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07-24-2005, 10:55 PM	#3
TrueBlueVenom in a happy place Join Date: Jun 2003 Location: San Antonio Posts: 5,834	might be loose lug nuts. loosen them then re-torque them down.

07-25-2005, 01:10 AM	#5
XtremeStang Registered User Join Date: Jul 2004 Location: San Antonio Posts: 224	Ill take a look at that but i dont think its loose bolts because when you drive it you can tell that its something big moving. My dad took a look at it and said it was the rear end. He has worked with cars alot and thinks someone could have raced alot and messed it up. He also checked the drive shaft and said it seemed to have a lil more play than it should. I just didnt know if anyone had encountered a problem like this before. Thanks for the imput so far. I will check those things to make sure.

07-25-2005, 11:45 PM	#7
XtremeStang Registered User Join Date: Jul 2004 Location: San Antonio Posts: 224	If thats the problem like u and i think the owner must have really messed up the rear end. I bought the extended warrenty but it doesnt take effect for 30days and 1000 miles. I just hope it doesnt go out before that time. Thanks

08-11-2005, 01:33 PM	#11
XtremeStang Registered User Join Date: Jul 2004 Location: San Antonio Posts: 224	Thats pretty sad when all the cars have rear end problems like that. I think he just may have beaten the rear end but im taking the car in today. i took it a week ago and they said that somthing on the ebreak cable was loose and fixed the problem (BS) it still does it. everyone seems to agree that its most likely the gears or posi but ford is to lazy to try to fix it. its under warrenty tho so they will have to pay for it. Thanks for all your help i will let everyone know what happens.