sencaw Posted January 22, 2010 Share Posted January 22, 2010 OK guys and gals, I have a question. This has been going on since I have owned my pathy, just 3-4 months but it has not gotten better or worse. When pulling off from a stop, I feel a slight thump coming from the rear somewhere, this would be right as I pull off and well before the tranny switches into 2nd gear. The only analogy I can make to help explain would be the sound and feel would be about the equivalent of a medicine ball in the back of the truck and when I pull off, the medicine ball rolls backward until it hits the tailgate "thump" It does not do this when starting off going down hill, it does not do it when pulling off and turning right. --- always when pulling off straight level or uphill and worse when pulling off and turning left. I am thinking it is a rear end problem but I am really not sure. Any help would be killer, and thanks in advance! Link to comment Share on other sites More sharing options...
Nismojunky Posted January 22, 2010 Share Posted January 22, 2010 could be a u joint have u checked them for play? Link to comment Share on other sites More sharing options...
adamzan Posted January 22, 2010 Share Posted January 22, 2010 My truck does the exact same thing.... Link to comment Share on other sites More sharing options...
Precise1 Posted January 22, 2010 Share Posted January 22, 2010 Remove the medicine ball from the cargo area... Ok, in all seriousness, go look!! Get under the truck and see if there is any play in the drive train. When is the last time you lubed things or changed fluid. Jack up (and properly support) the rear end and check for play again. Start it and see what it does in drive. I can think of play in the U joints, rear end, rear axles, bushings or a combination there of. Sorry but just not enough info to go on yet. B Link to comment Share on other sites More sharing options...
Channel595 Posted January 22, 2010 Share Posted January 22, 2010 this happened to my truck ever since i bought it, the only thing i can come up with its the control arm bushings in the rear, when it stops the rear diff will change angles and when you take off it puts opposite load on it and you hear a thud. its not u joints because they usually make a ping noise. Link to comment Share on other sites More sharing options...
87pathy Posted January 22, 2010 Share Posted January 22, 2010 also check tranny mount. Mine did this, until i changed it. Link to comment Share on other sites More sharing options...
sencaw Posted January 22, 2010 Author Share Posted January 22, 2010 will do as soon as it stops freakin raining here... thanks guys! Link to comment Share on other sites More sharing options...
Dowser Posted January 23, 2010 Share Posted January 23, 2010 (edited) I would also like to suggest Preparation X for a Rear End Problem. Edited January 23, 2010 by Dowser Link to comment Share on other sites More sharing options...
Precise1 Posted January 24, 2010 Share Posted January 24, 2010 B Link to comment Share on other sites More sharing options...
nunya Posted January 24, 2010 Share Posted January 24, 2010 I would also like to suggest Preparation X for a Rear End Problem. On the hole prepe.... nevermind Definatly give the trans mount (and motor mounts, had a 'kinda' similar issue with a s-10 once, was the left m.mount) a good check though. Link to comment Share on other sites More sharing options...
nismothunder Posted January 25, 2010 Share Posted January 25, 2010 On the hole prepe.... nevermind Thats vasoline nunya...get it right...Prep is for the day after... Link to comment Share on other sites More sharing options...
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