91 auto trans overdrive not kicking in
#1
91 auto trans overdrive not kicking in
I have a 91 w350 4x4 automatic transmission truck and all of a sudden it won't kick into ovwrdrieve but it will do fine in the first 3 gears. I have hit the od button to see if that changes it am not it does not, any suggestions,
thabks
thabks
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Vss
VSS, (speed Sensor) http://www.dnrcustoms.com/performanc...93cummins.html
#6
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Theres also a trans temp sensor on the trans line right under your feet that also controles whether or not it will kick in.
I would just unplug it and jumper the two prongs so you can rule that out, then if you find the problem you can just plug it back in.
Dar
I would just unplug it and jumper the two prongs so you can rule that out, then if you find the problem you can just plug it back in.
Dar
#7
Thought I'd let y'all know that I was checking connections and noticed that there was a momentary switch that the original owner installed to make the transmission shift out of OD with wot, the switch had broke so i put the wires together and went for a test drive. It worked!
Thanks for the help
Thanks for the help
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Great tip !
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