My 2001 w/ 46000 miles has developed a studder. It only happens after it's warmed up for like 10 miles or so. It happens when turning from a stop or starting at green light, etc... I have just had my rear axle bearings replaced twice in the course of 6 months and thought that was the problem. The dealer told me it was a bad power steering pump. I removed the serpintine belt and experienced the same problem which by-passed the pump all together. Has anyone else experienced this problem? Please help as I no longer have any warentee.

My 2001 w/ 46000 miles has developed a studder. It only happens after it's warmed up for like 10 miles or so. It happens when turning from a stop or starting at green light, etc... I have just had my rear axle bearings replaced twice in the course of 6 months and thought that was the problem. The dealer told me it was a bad power steering pump. I removed the serpintine belt and experienced the same problem which by-passed the pump all together. Has anyone else experienced this problem? Please help as I no longer have any warentee.


I have the same problem with my 2000 Jimmy and it started after I got the rear axle bearings changed about 6 month ago. I told the mechanic about it he took it for a road test and said it was fine, since the problem is intermittent he told me it was all in my head!! I am not a mechanic but I sure the problem is with the axle alignment causing it to studder when it's hot. Sorry I couldn't help very much but your not alone with the problem. If any one out there can help please let us know.

Thanks

Ron............

It finially got fixed, free of charge... I emailed GMC and basically told them all the problems I have encountered and they agreed to take care of the problem. It turned out, so the dealer told me, it was a vacuum switch to the transfer case that was leaking causing it to slip in and out while in 2 wheel drive. I still believe it was the rear axle bearings that finially seated. Whatever, it's fixed.
Jimmyboy, if you're the original owner, I would contact GMC to see if they will help out. Worht a try cause it worked for me. Sledhead