Guest roadie Posted February 14, 2004 Share Posted February 14, 2004 91 Pathfinder four door, five speed. When I pull away in first gear I hear a thump sound from the drive train and when looking at the stick shift, you can see the transmission rock down slightly. This is intermittent and occurs just after pulling away from a full stop and only in first gear after the clutch has engaged. Almost like the drive train is engaged, something slips and then slides back into place. My first thought is u-joints. Have there been other problems with this vintage and relating to other fault areas? I have inspected underneath and things look fine. Thanks. Link to comment Share on other sites More sharing options...
Diesel Boy Posted February 14, 2004 Share Posted February 14, 2004 Inspect using a tyre lever!! Put it between members and casings, check for movement and casing on member contact. Check exhaust mounts in the same manner. I expect it will be a rubber mount that has given up. Link to comment Share on other sites More sharing options...
88pathoffroad Posted February 14, 2004 Share Posted February 14, 2004 Yeah, it sounds more like a transmission mount or engine mount than a u-joint. Link to comment Share on other sites More sharing options...
Johannes Posted February 1, 2009 Share Posted February 1, 2009 Well its jan 09 and I jsut found this site and I have the same thump problem. Has anyone figured out what this is yet? Link to comment Share on other sites More sharing options...
daver123 Posted February 4, 2009 Share Posted February 4, 2009 Well I have a similar thump and mine is due to the fact that the bushings in the rear trailing arms are shot so i got bad axle wrap and alot of movement in the rear. If you find that the bushings are done if you wanna upgrade the rear end linkage have a look at this thread, steevo has a solution: Replacement links Link to comment Share on other sites More sharing options...
silver97ex Posted February 10, 2009 Share Posted February 10, 2009 Mine also does the same thing. Link to comment Share on other sites More sharing options...
Precise1 Posted February 10, 2009 Share Posted February 10, 2009 Ahh, I meant to respond when I read this at work, but I guess I was distracted by work... U joints is the first thing I would look at. When mine failed recently, they made little noise themselves but made a clunking noise (almost always 1st and second gear) as they were shaking the tranny around. Mounts are a possibility, but check the uni's first. Jack up the rear end (jack stands and brace/block the front wheels well) and start it and put it in gear. Now look underneath... The rear of my tranny was being jerked around violently. B Link to comment Share on other sites More sharing options...
94extreme Posted February 10, 2009 Share Posted February 10, 2009 yeah, start with the universals of the propeller shaft. then check the rear linkage/panhard and the tranny mounts. Link to comment Share on other sites More sharing options...
unccpathfinder Posted February 10, 2009 Share Posted February 10, 2009 i've got the same thing going on...i'm writing it off as the u-joints...i've noticed it in 1st and sometimes in 2nd...my buddies bronco was slamming a lot harder than mine and he replaced all of his joints and it went away...i need to get onto it before something bad happens...but thats why i was carrying trail spares for both front and rear driveshafts... Link to comment Share on other sites More sharing options...
Kingman Posted February 10, 2009 Share Posted February 10, 2009 Full throttle from a stop mine feels like there's a lot of tension somewhere, like something is twisting on take off. It's hard to explain. Link to comment Share on other sites More sharing options...
94extreme Posted February 11, 2009 Share Posted February 11, 2009 Full throttle from a stop mine feels like there's a lot of tension somewhere, like something is twisting on take off. It's hard to explain. try again because that sure is hard to understand. Link to comment Share on other sites More sharing options...
Kingman Posted February 11, 2009 Share Posted February 11, 2009 try again because that sure is hard to understand. I can feel it in the floorboards, the pedal, a groaning noise Link to comment Share on other sites More sharing options...
94extreme Posted February 11, 2009 Share Posted February 11, 2009 quit mashing it like that. Link to comment Share on other sites More sharing options...
Precise1 Posted February 11, 2009 Share Posted February 11, 2009 If you can feel it in the pedal, which one? B Link to comment Share on other sites More sharing options...
Johannes Posted February 11, 2009 Share Posted February 11, 2009 Sorry to be slow but where exactly are the U joints again? Link to comment Share on other sites More sharing options...
Johannes Posted February 11, 2009 Share Posted February 11, 2009 Wait a sec. The u joint must be the ones on the rear drive shaft because there wouldnt be one on the rear axle as it is fixed right? Got confused there for a sec Link to comment Share on other sites More sharing options...
87pathy Posted February 12, 2009 Share Posted February 12, 2009 I had the same problem.. it was the tranny mount. Changed it and all is good. Link to comment Share on other sites More sharing options...
Precise1 Posted February 12, 2009 Share Posted February 12, 2009 The u joint must be the ones on the rear drive shaft because there wouldnt be one on the rear axle as it is fixed right? Yes. That is my guess but do not discount 87pathy's guess either as it may be a contributor or the issue its self. Easy enough to check. It is hard to diagnose online, we can only suggest and recommend from personal experience and mechanical knowledge... B Link to comment Share on other sites More sharing options...
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