horrible noise and pop?

[mercuryman97]

i have a 1997 mercury mountaineer awd...when i am driving in reverse or in drive...moving slow or gunning it...i hear this horrible popping sound and a jerk from underneath the car like right where the front seats are....but when i take my front driveshaft out it doesnt do it anymore..put when i put it back in there we go with the racket and jerks again....i have replaced all the front driveshaft u-joints and it is still doing it.ANY IDEAS PEOPLE?...any help would be appreciated!!!thanks

 

[Bronco638]

Sounds like a bad CV joint (shaft).

 

[ExplorerDMB]

That's exactly what it is - We had a Explorer come into the shop a few months ago with the same horrible sound. Take the shaft out again and try to move the cv-joint part of the driveshaft. The one we took out could not move and would just "break" over and over again by the force of the differential up front. Good luck.

-Drew

 

[GRNExploder95]

I had the same problem with my 95 explore xl. I put in all new u joints, checked the cv's, and still had the problem. So we finally pulled off the stock transfer case, put in a spare and sure enough, no more popping. Definitly check your joints first though.

 

[gavin]

mercuryman's is a 97, therefore the only u-joint is at the diffy. And yes, the problem is the cv joint at the t-case, and the d/s needs replaced.

 

[ogwutang]

i have the same problem. just bought a 97 AWD XLT 5.0 thinking it was an easy fix. i replaced the front driveshaft and i still have the popping in forward and reverse. any suggestions?