2001 GMC sierra no forward gears 2wd

Asked by Jakeb May 08, 2023 at 12:01 AM about the 2002 GMC Sierra 1500 SL Extended Cab SB

Question type: Maintenance & Repair

I have a 2001 gmc sierra transmission is strong in

reverse but no forward gears at all and when it is put

in gear the engine revs up to 3k rpm’s by its self I

jacked up the rears wheels and the did move forward

intermittently

1 Answer

Jakeb answered about a year ago

Fluid is good it is a 2wd truck but I am getting a c1500 trouble code which is transfer case encoder circuit b fault and when put in any gear other then reverse it idles up extremely high I am bum founded because no burnt fluid and trans worked perfect one day and it sat for a month and now nothing but reverse

Mark helpful

Your Answer:

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