weird grinding when hitting a bump

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Nov 23, 2013 | 08:40 AM

BigRed7.3l

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Junior User

Joined: Mar 2013

Posts: 77

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From: Dingmans Ferry, PA

weird grinding when hitting a bump

So hear we are again with my problem child 7.3l haha
Pretty soon ill have a brand new truck with how many new parts are on it.

So i noticed a week ago that I hit a bump in the road [PA roads are awful] and it sounded and felt like i was on a rumble strip maybe coming from the front end. But i realize Im not and pulled over, checked everything out and couldnt really find a problem.

Go to take off and my truck is fine. Since i drive it daily i have been driving it all week and every once in a while ill hit a bump and it happens again until i slow down/stop or hit a bump in the road again. Really odd.

My passenger side hub is pretty tough to unlock [i need pliers to do it] So Im gonna re pack that asap. And when its not vibrating it drives perfectly fine so Im thinking its not the bearings.

Any ideas guys?

Thanks, Kevin

Nov 23, 2013 | 08:46 AM

Scerb

Senior User

Joined: Sep 2013

Posts: 108

Likes: 0

From: NH

ball joints, tie rod ends, axle u-joints, wheel bearings...

Nov 23, 2013 | 09:22 AM

tappit01

More Turbo

Joined: Mar 2011

Posts: 683

Likes: 1

From: cincinnati, oh.

you'll be able to tell a little easier with the weight off of it. jack the front wheels off the ground and start wiggling and tugging on things.

Nov 23, 2013 | 12:15 PM

Shake-N-Bake

Post Fiend

Joined: Sep 2003

Posts: 6,096

Likes: 26

From: Mesa AZ

I always suggest folks take a look at the spring tip isolators. They are cheap and easy to replace and make an awful grumbling vibration when they crumble to pieces.