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Posted

Yep when I'm drivin at about 35mph and with the rpm's at about 2000 I sometimes hear a thump. Do you guys think It's a problem with the axle. It's coming from behind me somewhere.

1988 I6 automatic. Thanxs guys

Posted
Yep when I'm drivin at about 35mph and with the rpm's at about 2000 I sometimes hear a thump. Do you guys think It's a problem with the axle. It's coming from behind me somewhere.

1988 I6 automatic. Thanxs guys

 

you can pull the diff cover, won't take to long, and check the gears for obvious signs like missing teeth and stuff. refill with any 80w90ish gear oil

Posted
Yep when I'm drivin at about 35mph and with the rpm's at about 2000 I sometimes hear a thump. Do you guys think It's a problem with the axle. It's coming from behind me somewhere.

1988 I6 automatic. Thanxs guys

 

Have you checked your shocks?

 

does it thump when you hit bumps?

Posted

no but here's the wierd thing. I just dissconnected the ccv hose off the back. The smaller side connected On top of the exaust manifold. Not only does the truck idle and run better. It quit making that thump, and it shifts a lot better. :nuts:

Posted

FxRacin282 wrote

... quite possible its a squirrel

and now asking what CCV was I thought that it stood for a cranky crab varmit :rotfl2:

  • 2 weeks later...
Posted
That thump in the back is my exaust hitting the transmission crossmember. Maybe the tran. mount is out?

 

Either that or your exhaust hangers are rotted out and broken. Either way easy fix.

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