Front end "cracks"
Thread Starter
|
Senior User
Joined: Jul 2007
Posts: 265
Likes: 0
From: Montreal, Canada
Front end "cracks"
For my truck in sig, when diving in my field which is relatively flat, at times I get a loud "crack" coming from the front end. This happens driving SLOW (3-5 mph) and only when one wheel goes over a bump and is higher than the other wheel. I have just changed balljoints (all 4) and new front shocks....coils look fine. I'm thinking something to do with the axle? I can hit a pothole at 30mph and all is fine. Like I said its only driving slow when the wheels are off balance.
Any ideas on where to start looking?
Thanks
Itch
Any ideas on where to start looking?
Thanks
Itch
New User
Joined: Aug 2007
Posts: 13
Likes: 0
check the upper and lower control arm bolts at frame. maybe one of them is not tight enough. I had a loud cracking sound from the front left of my expedition when I backed out of my driveway. I looked under it and I could see evidence of movement at one of the bolts, since I've tightened it the crack is gone. good luck.
Freshman User
Joined: Mar 2003
Posts: 25
Likes: 0
From: San Francisco
I have read (on this site probably) that sometimes the rivets holding the front sub-frame and radius arms (and probably other stuff) can loosen and allow movement. Fix was to replace rivets w/grade 8 bolts.
Don't have personal experience w/this fix, but I am looking at a similar problem and may give it a try. According to the link I posted yesterday (if I understand it right) the recommended procedure is to replace the rivet w/a bolt 1/16" larger - IOW drill out the holes after removing the rivet. This may be a pre-emptive attempt to address any ovaling of the hole.
Rufus
Don't have personal experience w/this fix, but I am looking at a similar problem and may give it a try. According to the link I posted yesterday (if I understand it right) the recommended procedure is to replace the rivet w/a bolt 1/16" larger - IOW drill out the holes after removing the rivet. This may be a pre-emptive attempt to address any ovaling of the hole.
Rufus
