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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra 4x4 Questions
233 messages, Last post on Nov 08, 2009 at 11:21 PM
You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram
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Replying to: kcram (Jan 04, 2008 6:40 pm) |
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Replying to: strodsfam (Jan 05, 2008 2:10 pm) The reason for the failure of the encoder motor on my 4wd was due to a bearing freezing on the sector shaft, this shaft connects to the encoder motor. The transfer case was cracked allowing water/salt to corrode the sector shaft bearing resulting in the encoder motor failure. The transfer case crack... I don't think it was a crack from impact. I think it was a bad casting from the factory because of the location of the crack. JB weld in the crack fixed the problem along with a new sector shaft bearing and encoder motor. link for encoder motor for your truck http://stores.channeladvisor.com/Auto-Parts-Direct-To-You/Items/1420002-gmc%20c%- 20series? dealer cost to fix this apx. $1200.00
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Replying to: bruce48532 (Jan 07, 2008 6:12 am) |
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i have a 2003 sierra my prob is my 4hi and 4lo dont engage but my auto 4 does work. when puttin into 4 lo it does gear down but front wheels do not engage could this be the encoder motor on the transfer case. any suggestions would be greatly apreciated. I can hear it is tryin to engage when i push either the 4 hi or 4lo buttons but like i said the front wheels dont engage
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Replying to: bruce48532 (Jan 07, 2008 6:12 am)
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My 4 wheel drive went out this past week without any warning. I backed up to turn around and when I put it back into drive it made a grinding noise and the front wheels quit pulling. I tried several times and it would never engage again just the grinding, like gears not fully meshed. When I push the button it feels and acts like it engages 4hi and/or 4lo. I've read most of the posts on here and most just say theirs just quit working and it's the actuator motor. Is it possible that it is only partially engaging? Could it be the autolocking hubs? I haven't had time to check if the axles or drive line are turning, dark to work dark when I get home. I just need some advice for when I start on it this weekend. My truck has 172,000 on it and I've never had any other problems except fuel pump (twice). Any help in the right direction would be a greatly appreciated. Thanks osweeks
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Replying to: strodsfam (Jan 08, 2008 4:07 pm) |
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Replying to: ballz78 (Jan 07, 2008 5:48 pm) Common 4wd problems Speed sensor bad ( this is a recall on some trucks check with your dealer) - hard shifting, cluncking noise when shifting Bad dash selector switch (bad solider or connector) - not lights lite on the selector switch. Font axle actuator - No front wheel drive Transfer case encoder motor - will not shift out of or go into 4hi or 4 low my guess speed sensor or encoder motor |
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| hey guys i got a 1999 1500,i started to drive the truck in 4x4 and the first 15 minutes i drove the car in 4x4 it was fine then there was clunk started in the front,i slowed down to about 5 mph and the clunk stoped.when driving in 2wd its fine but now im worried cause its snow season and i need 4wd.also it started when i made a turn if it makes a difference. | |
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Replying to: osweeks (Jan 08, 2008 5:43 pm) Thanks, osweeks
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