Wiggle when letting off throttle

[Precisionjj]

I’m hoping I can get some help here because I feel like I’m losing my mind. I have a 2011 Ram 1500 Sport and when I let off the throttle at highway speeds the trucks wiggles/pulls side to side as the rpms drop. It then does the reverse when I get back on the throttle.


This only happens at highway speeds. If I put it into -/+ shifting mode and select 4 it still does it but not as severely.


I’ve taken it to the dealer and they though it was a bad U joint and replaced it but that did nothing.


Any ideas? Bad bushing? Engine/tranny mount?


It makes the truck feel straight up dangerous at highway speeds. Thanks!

 

[Loudram]

I have a similar issue and I think it's the lower rear control arm. Mine is a little bit worn and there is some side to side play in it. I plan on replacing them soon. I don't think you can just replace the bushings, you have to replace the arms in pairs.

 

[rojo_143]

I would inspect your control arms like Loudram suggest and if those look good I would then look at your panhard bar mounts for play

 

[Sasquatchtdg]

Had this same issue with a pathfinder, rear control arm bushings were shot.

 

[Sasquatchtdg]

Put the truck in park on a level-ish surface, have someone rock it back and forth (just pushing it) , watch for movement in the control arm mounts/bushings.

 

[Precisionjj]

Awesome, I’ll take a look at the rear control arms and see what I find. Thanks guys

 

[Precisionjj]

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I’m gonna say you guys were right! I replaced the rear control arms because they were all jacked! Thanks for the help, this forum rules!