limped transmission...no codes! [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: limped transmission...no codes!


prplnrpl
06-23-2007, 08:30 PM
about 2 weeks ago i had to replace neutral safety switch, ignition switch and some other connector after my trans freaked out. i thought it was fixed, but it did the same thing on weds! whats worse is the truck isn't throwing any codes! the truck has 99k on it. not a work truck, definitely babied. any info would be hugely appreciated.
thanks,
silas

redneckbuckeye
06-23-2007, 11:02 PM
take it to the dealer?

MAX Attitude
06-24-2007, 12:21 PM
Ditto, take it to the dealer before your 100k warranty is done!

Machinator
06-25-2007, 07:28 AM
What exactly is it doing?

prplnrpl
06-28-2007, 03:59 PM
took it to dealer. they replaced positive and ground on tcu. seems good. thanks guys.

prplnrpl
07-06-2007, 05:01 PM
allright, this time the dealer says it needs a whole new tcm! ouch! better than a new tranny. if this doesn't fix it i'm gonna freak out.

what happens is a loss of power, gears way down, and i get shift range inhibited on display. after a few minutes its fine, then the same thing a few miles down the road. wierd!