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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra 4x4 Questions
236 messages, Last post on Nov 17, 2009 at 5:35 AM
You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram
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| Hi I have a '99 sierra 1500 that first would stick in 4 hi. Dash push button shift lites would work intermetily. Changed the fornt axle accutator and she worked up and down our drive, test drive, for 4 trips then the next morning I started it and no lites and stuck in 4 hi again. The indicator buttons would lite when I turned the ingintation on. Took to a friend and he got a code co 327 but it would not give him what was bad. He used his DT'er to tri it into 2 wh. The lites went back off and he could not over ride that module up under dash. He believes that is bad, But like me not certain. Any idea's? Thanks | |
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Replying to: gwhitney (Oct 14, 2008 4:00 pm) |
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Shift motor won't shift from hi to lo or back/ neutral to either,also blows fuse,but I can put a jumper in the fuse slot and it works.any thoughts? Can there be a short somewhere? |
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Replying to: cooperbiker (Feb 18, 2007 7:14 am)
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Replying to: jknowles (Mar 04, 2009 6:13 pm)
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Replying to: bruce48532 (Mar 05, 2009 6:29 am) |
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Hi, newbie here, and I've just spent a while looking over old posts; there's a lot of great info in this forum! My situation: a '96 Sierra 5.7l automatic with push button shift, 106k miles, well cared for, but I've only owned this for 14k miles, so am not very familiar with it. Just recently noticed when I shift to 4H or 4L, the light just blinks, and doesn't engage the front wheels. Shifting to 4L does transfer to low range, however. From previous posts, this points to a switch, fuse, connectors or an actuator problem. Because the switch works to 2H (solid light) and to the low range (4L), and the wiring appears ok, I'm thinking front differential actuator or fuse. Can someone tell me where that fuse is, and/or if I should go directly to a new actuator? I followed the link from Bruce48532 to the parts supply, but the replacement actuator listed doesn't show it's for a 1996. Will the one listed still work? I presume the existing is an older thermal unit, and is the listed one a direct replacement? Thanks a lot for any replies, Alan |
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Replying to: joker762 (Nov 13, 2008 5:17 am) thannks
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Hello, I recently purchased a 2500 HD Duramax Diesel with Allison transmission - it also came with 4x4 and has around 60K miles. The only reason I got this truck was to haul my horses. However, the darn thing did not come with an owner's manual. I was playing with the 4x4 switch the other day and I have 4Hi and 4Lo and 2H. I normally drive in 2H and I can also switch the truck to 4Hi. When I try to switch to 4Lo, the light just blinks but it eventually comes back to 2H. Having no previous experience with 4x4 vehicles, this does not sound right to me. Can anyone explain what the 4Hi/Lo are supposed to mean and what is the expected effect of pressing these buttons? (sorry for the dumb questions) In addition, when I switch to 4Hi, and do sharp, slow turns in gravel, the tires move very slowly and feel as if they are "skipping" in the turn (for lack of better explanation). Should 4x4 feel any different than 2wd on regular gravel (for example)? Thanks for any help! Ognen
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Replying to: messerbn (Mar 22, 2009 8:00 am) |
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