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Showing results for tags 'transfercase'.
Found 4 results
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Cliff Notes - Runs and drives in 4Lo -Only gets power to front wheels -No power to rear wheels -Only takes off after 1000rps -Does not take off in 2Hi or 4Hi -Shifts hard Possible Problems -Transfer case -Transmission -Rear dif -4x4 shift selector Ok, I'm new here and I have an issue I've never seen before. I have a 2000 Chevy GMT-400 k2500 LS that doesn't get any power to the rear drive shaft. The weird part is that it still drives in 4Lo. It only provides power to the front wheels, only takes off after 1000-1500rpms, and isn't really a smooth ride. It doesn't even take off in 2Hi or 4Hi. What I need to know is if anybody has seen this before and knows where this could be coming from. I'm thinking transfer case, transmission, or the 4x4 selecto switches. To my knowledge this truck is supposed to be mainly powered by the rear wheels so why do I only get power to the front? Note: I know it's getting power to the front because I've driven it without the rear drive shaft being connected at all. When I put the rear drive shaft back on, it drove exactly the same. I just figured if I had a bad transfer case, the front wheels would be the first to go out. Please help -
Hello, about 7 months ago I smoked my 6l80 transmission, removed it with the transfer case still attached last fall, before removing it I made the mistake of putting the transfer case (RPO code NQH) into neutral to aid with removing the rear driveshaft. Fast forward to about a month ago I finally had time to reinstall a new (rebuilt) transmission, upon reinstalling everything I noticed that my transfer case shift knob was not responsive and had no lights (other than on startup when it does a function check or whatever) I got a few wiring diagrams and checked over the whole system, replaced the transfer case actuator motor and the knob on the dash, still cannot get the POS to respond and do something. At a loss with this truck and contemplating scrapping it, it's had 4 motors, and 1 transmission in 126k miles, let alone over 30k in parts and labor. I recently got laid off and buying a fancy scan tool and/or having it sent to a shop is *NOT AN OPTION*. I desperately need advice and or assistance as to WTF I should do with this POS that has been nothing but problematic since day one. below I have sent all the PDF pages I have used to trace and track wiring schematics.
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Ok so I have a 2015 gmc sierra 1500. after backing up and putting it into drive I get going for about 5 to 10 seconds ill get a jarring lock up for a split second. First time it happened I was going about 40 and I bounced off the steering wheel and left a little skid mark. It sounds like either my transfer case or transmission is locking up but it literally lasts for a split second then goes away. also I've noticed that after shifting from reverse I hear a loud transmission whine before it does it. This has happened at least 30 times for about a year and dealer says they can't recreate it. It's the 6spd tranny Also I know all about the normal GMC transmission clunk when shifting I have that too but I've learned to live with it. This is something else entirely. Its dangerous and I can't find anything on any forum mentioning this issue
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I purchased my first 4WD truck in February (2020 GMC Sierra 1500 4WD 6.2L 2 speed Transfer Case). I wasn't really in the market for a 4WD model, but had to choose one to get the options I did want. So I am unfamiliar with the proper use of 4WD. Specifically: 1) When just driving around town and not towing anything, should I leave the transfer case setting set to 2WD or 'Auto?' 2) The manual recommends not using a automatic carwash without giving a reason. Is there a real 'danger' in using one leaving aside the need to choose one that can handle the size of the truck (I've read the posts about leaks, but that is a different issue for me)? 3) My research suggests that if I were to have the truck towed or pulled through a carwash by rollers behind the front wheels that I should put both the transmission and transfer case in neutral. Is that correct? Anything else I should do (besides turn off the auto windshield wipers setting and keep my foot off the brake)? I did search this forum (and the Internet) trying to find the the answers to these questions, so if I missed something, please forward a link. TIA
