"grinding" in reverse

callaway · **Posted:** Tue May 01, 2007 2:13 pm

When I'm in reverse and start to accelerate there's a grinding/binding noise that comes with a slight vibration from the floor during the first few seconds of acceleration.

If I shift to reverse and don't step on the gas, there is no noise/vibration - only when I give it gas. So far I've yet to hear it while turning (so this rules out cv joints?)

This started up a few days ago and its become more noticeable. Any ideas as to what this is?

jerbacher · **Posted:** Tue May 01, 2007 2:38 pm

in 4wd or not?

callaway · **Posted:** Tue May 01, 2007 2:44 pm

not in 4wheel

jerbacher · **Posted:** Tue May 01, 2007 3:07 pm

I was just curious because I have had some sound when backing in 4wd, but I have no idea for not in 4wd. Sorry.

Jeger · **Posted:** Tue May 01, 2007 3:18 pm

I would check for a loose/rubbing exhaust component or heat shield. Also make sure that 4WD is actually disengaging, another good excuse to get offroad :wink:

Auto or Stick?

callaway · **Posted:** Tue May 01, 2007 3:21 pm

its an auto w/~53,000 miles. I havn't shifted into 4wd for a few weeks.

CaKJFreedom · **Posted:** Wed May 02, 2007 12:21 pm

My tranny skid rubs on the exhaust. A grinder fixed it. You'd only notice in reverse when you'd hear it rattling against the skid. It does it a bit more now after Moab for some wierd reason. :wink:

LiLredLibby · **Posted:** Wed May 02, 2007 12:29 pm

Jeger wrote:

I would check for a loose/rubbing exhaust component or heat shield. Also make sure that 4WD is actually disengaging, another good excuse to get offroad :wink:

Auto or Stick?

X2...could have a soft engine mount letting something rattle against the floor.

callaway · **Posted:** Wed May 02, 2007 11:21 pm

CaKJFreedom wrote:

My tranny skid rubs on the exhaust.

I've had the trany skid rub against the exhaust already and this doesnt sound anything like that. I'll try and get a clear sounding movie tomorrow of this.

"grinding" in reverse

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