U-Joint maybe?
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Junior User
Joined: Jul 2001
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U-Joint maybe?
when coming to a stop from highway speed I get a crack noise coming from right underneath middle of my 99 4x4, also happens when i accelerate hard then let off the gas quickly causing the transmission to shift, and theres the sound,"crack", I have tried coasting to a stop from highway speed,while in neutral,and it seems the sound never happens. Is this a symptom of a bad u -joint?
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Not that I have heard, but I have read about one ot two that the bolts had worked loose allowing too much play in it.
Also, I have read about adding grease to the splines where the driveshaft goes into the tranny. They were designed to have a little play in the splines and the grease keeps the noise down.
Also, I have read about adding grease to the splines where the driveshaft goes into the tranny. They were designed to have a little play in the splines and the grease keeps the noise down.
New User
Joined: Apr 2003
Posts: 13
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My 2000 2wd has a high pitched hum coming from the same spot, and I have been told that it is the U-joint. It started after I towed a trailer across country.
Does this sound familiar to anyone, before I go replacing it??
Does this sound familiar to anyone, before I go replacing it??
Junior User
Joined: Feb 2004
Posts: 69
Likes: 0
From: Orange Park, FL
if your not sure it your u joint just crawl underneath your truck and try to turn the drive shaft with your hand if it moves while the truck is in park then yes you have a bad u joint
of the two opinions that have been given so far i would have to say it is probably the tranny mount but if you are getting a crack noise under there just crawl under and look to see if you can tell where something might be hitting somewhere it shouldnt be
of the two opinions that have been given so far i would have to say it is probably the tranny mount but if you are getting a crack noise under there just crawl under and look to see if you can tell where something might be hitting somewhere it shouldnt be
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Laughing Gas
Joined: Mar 2002
Posts: 1,060
Likes: 12
From: arizona
My mount had to be replaced as well, many times until they finally figured it out.
Also, do a search on "clunk" not crack
Also, do a search on "clunk" not crack
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