overdrive off problem
I towed my 10K trailer this weekend for the first time in a few months and found I can't get the truck out of overdrive.The overdrive off switch doesn't work and the truck won't shift from overdrive to third under load by itself so when I did the big hills I had to pull it into second.All the wires were pluged in the back of the switch and I checked the fuses,any ideas?? Thanks.:confused:
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i'm not an expert on the subject but from what i have seen on here overdrive issues seem to be related to the throttle position sensor (TPS) if that is the case, this link is a cheaper fix than a new tps
https://www.dieseltruckresource.com/...threadid=42003 hope this helps! |
If you're not shifting in O/D while under load it's most likely that the TPS only needs adjusting. If it's never shifting into O/D, then it could still be your TPS, or perhaps your Vehicle Speed Sensor. If the VSS isn't working you'll have no speedometer as well.
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The speedometer works fine now its warm weather(didn't sometimes when its cold).How do you adjust the TPS sensor??
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Here's a good description on how to adjust the TPS from Piers Diesel: TPS
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Hey thanks guys I'll give it a shot.
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