Question about Chevrolet Silverado 1500
If your transfer case is bad (broken fork, gear, shaft or something) It could engage both the low and the high ratio gears at the same time. The vehicle will not move if this happens even if you put your foot in it and try to power out of it. Two ratios cannot be engaged at the same time. Just by your description, it sounds like something like a shift fork or shaft has broken loose from the selection gear and this is allowing the gear to slide on its own unchecked, randomly engaging and dissengaging ratios. I would have a trustworthy shop take a look right away. Any reputable shop could diagnos a transfer case problem within an hour. The shop should charge 1 hour diagnostic time to tell if it is bad and what needs to be done to correct it. If they need to take longer than that then have them tell you why, and it better be good.
Good luck, and if you have any further questions- just ask!
Posted on Mar 31, 2011
Usually this is due to a defective sensor in the encoder motor that tells the transfer case control module what gear you are in. when the sensor becomes defective and sends a faulty signal the transfer case module starts irratically shifting the transfer case trying to find the commanded gear. you used to have to replace the encoder motor which is quite expensive but now a new sensor is available, you will want the encoder sensor, and oring seal. pull the encoder out and and split the two halves, you will find 2 gears in there, and the sensor is attached to one of them, replace the sensor, set the gear/sensor back in with the marks on the gear and case lined up and put it back together, wrecking yard encoders are cheap also but usually will not come with an updated sensor in them.
Posted on Mar 31, 2011
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 05, 2013 | 1995 Toyota 4Runner
Dec 23, 2012 | 2000 Chevrolet Blazer
Aug 01, 2012 | Cars & Trucks
Jun 03, 2011 | Chevrolet C1500 Cars & Trucks
Dec 23, 2010 | 1999 GMC Jimmy
Nov 24, 2010 | 1998 GMC Jimmy
Dec 13, 2009 | 2002 GMC Envoy
Oct 05, 2009 | 1990 Toyota 4Runner
Sep 23, 2009 | 1996 Chevrolet K1500
251 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: