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Squeal Sound From Rear Wheels Area at Freeway Speeds When Not Accelerating
Well, I finally took the truck into the shop this week. They test
drove it and heard the same sound - Now, it happens (most times) at about 45mph and above - never on accleration and only when either you let up on the gas, or just coast. When the speed drops below about 40mph, the sound always goes away. I thought before it was one side or another, but now I'm pretty sure it's in the middle and possibly both sides as well. It's a high pitched squeal sound - definitely metal on metal. Anyway, the shop took off the wheels, checked the brake pads, wheel bearings, diff fluid and visually inspected the thing. They couldn't find anything wrong in there. Based on the above info, does anyone have any ideas? I'm beginning to think that either the differential or drive shaft or axles are to blame? Thanks! Brad. |
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#2
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Bad carrier bearing?
-- Steve Williams > wrote in message oups.com... > Well, I finally took the truck into the shop this week. They test > drove it and heard the same sound - Now, it happens (most times) at > about 45mph and above - never on accleration and only when either you > let up on the gas, or just coast. When the speed drops below about > 40mph, the sound always goes away. > > I thought before it was one side or another, but now I'm pretty sure > it's in the middle and possibly both sides as well. It's a high > pitched squeal sound - definitely metal on metal. > > Anyway, the shop took off the wheels, checked the brake pads, wheel > bearings, diff fluid and visually inspected the thing. They couldn't > find anything wrong in there. > > Based on the above info, does anyone have any ideas? I'm beginning to > think that either the differential or drive shaft or axles are to > blame? > > Thanks! > Brad. > -----------== Posted via Newsfeed.Com - Uncensored Usenet News ==---------- http://www.newsfeed.com The #1 Newsgroup Service in the World! -----= Over 100,000 Newsgroups - Unlimited Fast Downloads - 19 Servers =----- |
#3
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I had a similar problem with my 98 T-100. All of the sudden one day I
started to get a high pitched rotational squeal when decelerating. I had the trucks transmission and differential fluids serviced two weeks prior to the start of the noise and at that time had scheduled a follow-up visit to get the transfer case drive shaft seal replaced due to a small leak. Upon returning to the dealership I ask them to check the noise. Prior to changing the seal they drove the truck and were able to hear the noise but they were unable to find the cause. The dealership proceeded to change the oil seal which required the disconnection of the u-joint. After they completed this work they suggested I drive the truck until the noise worsened and the cause could be determined. However , after the seal repair was completed the noise never returned. I believe the cause was either a stuck needle bearing in the u-joint or the old seal contacting the drive shaft. I most suspect the u-joint. Hope this helps. dllj "Steve W." > wrote in message ... > Bad carrier bearing? > > -- > Steve Williams > > > wrote in message > oups.com... >> Well, I finally took the truck into the shop this week. They test >> drove it and heard the same sound - Now, it happens (most times) at >> about 45mph and above - never on accleration and only when either you >> let up on the gas, or just coast. When the speed drops below about >> 40mph, the sound always goes away. >> >> I thought before it was one side or another, but now I'm pretty sure >> it's in the middle and possibly both sides as well. It's a high >> pitched squeal sound - definitely metal on metal. >> >> Anyway, the shop took off the wheels, checked the brake pads, wheel >> bearings, diff fluid and visually inspected the thing. They couldn't >> find anything wrong in there. >> >> Based on the above info, does anyone have any ideas? I'm beginning to >> think that either the differential or drive shaft or axles are to >> blame? >> >> Thanks! >> Brad. >> > > > > > -----------== Posted via Newsfeed.Com - Uncensored Usenet News > ==---------- > http://www.newsfeed.com The #1 Newsgroup Service in the World! > -----= Over 100,000 Newsgroups - Unlimited Fast Downloads - 19 Servers > =----- |
#4
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Thanks for all the tips and experiences. From searching on past
postings, this problem sure does prove to be a tough one to narrow down. My problem has now gone intermittent. I had a scheduled appointment today at the differential specialist shop, and sure enough, not a single sound out of the truck this time! They test drove it and the put it on the rack and disconnected the drive shaft, checked the u-joints and the pinion bearing for tightness. All were good. Ran it at various speeds and decelerated. No sounds then or the rest of the day. He said he could sell me a bearing job for the differential, but it would likely be a waste of money. An interesting thing he told me is that if a rearend has problems, it will never be intermittent. Anyone have any experiences with the intermittent side? Could temperature or use cause it to start or stop making noise? What back there could make this sound but only intermittently?? Thanks! |
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