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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra 4x4 Questions
239 messages, Last post on Dec 01, 2009 at 1:47 PM
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Replying to: harley1970 (Feb 24, 2007 7:05 am) |
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Replying to: denncat22 (Mar 12, 2007 5:56 pm) |
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Replying to: denncat22 (Mar 12, 2007 5:56 pm) on the way to work a couple days ago at 75 mph the 4wd just kicked in by itself..couple loud bangs seconds later came from the front wheel area. anyone ever have this happen? was stuck in 4wd for 10 minutes or so till i finally got it out into 2wd then pulled the fuse for the tranfer case so i could make it to work. just had 2 front tires put on..slightly different from the rear..heard this could be the problem as you need to match them perfectly. asked 5 diff friends and got 5 diff answers. also isnt there some kind of failsafe so this wont happen if it happens to be a short in the switch? drove it home with the fuse pulled (about 50 miles) with no noises..seems to be ok but im afraid to put the fuse back in till i find the exact problem. has an automatic tranny.
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Replying to: kegabear (May 04, 2007 3:59 am) Did it shift into 4Hi or 4Lo? If it was 4Lo, then the problem is not in the front diff. - the diff. doesn't have two speeds. Once you figure it out and do the repair, make sure you take it offroad and put it through the paces to make sure there was no damage. You don't want to find out when you really need 4x4 and it's not available. 1offroader
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Replying to: 1offroader (May 04, 2007 7:41 pm) thanks for your help! |
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I have an 03 Silverado Z71 ext. cab. and just recently the 4wd system has been acting up... I have the AutoTrac system and when I go to turn the truck on, sometimes it says it is in 4wd, auto or neutral. It then tells me to service 4wd, no other lights are on and I'm not turning on anything... Most the time it is normal and in 2wd when I turn it on. Mechanically the sytem works like normal when I want to go 4wd I just push the button as normal and it works... |
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Replying to: 351suckazz (Jan 31, 2007 6:31 pm) |
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| I noticed today that my transmission was in 4H as I was driving down the freeway. Not sure how it got there and not sure how many miles I drove it this way. Is this an issue with this knob? Further, have I damaged the vehicle? | |
i have a 2000 gmc 1500 4x4 it makes a whining noise at any speed it gets louder at highway speeds and the truck has 214,000 miles
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