YACT: 91 Suburban

[Pyromidion]

I have a V1500 1991 Chevy Suburban with some troubles I can't diagnose. Sitting at a stop and taking my foot off the break (start in motion) causes this really loud metallic 'clunk' sound. It gets quieter the longer I ride, but its still there. Strangely enough, it also somtimes makes the same sound when I come to a stop. any help is appreciated.

-John

 

[Vette73]

Check the u-joints of the driveshaft. Also is it 2 or 4wd?

 

[CrackRabbit]

Originally posted by: Marlin1975
Check the u-joints of the driveshaft. Also is it 2 or 4wd?

I 2nd the U joint diagnosis. The AMC hornet I had would clunk when starting to move.

 

[RiverDog]

Everon agrees, U-joint. One way to check is to coast down a hill and step on the gas. That will usally cause a clunk. The good part, their cheap and easy to replace.

 

[iRONic]

Yup. U-joints.

 

[Pyromidion]

with high hopes that it was the U-joints, I brought it to my mechanic. turns out it wasnt the Ujoints, but he says my whole back end needs work...any ideas?
btw, hes 4wd