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Won't up shift unless at full throttle?

Tiny
2KENWORTH
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 148,000 MILES
1999 dodge caravan 148 k miles transmission won't up shift unless at full throttle then it shifts normally. Problem started suddenly had been working ok. It has no diganostic codes set. Trans fluid is clean and doesn't smell burnt
Thursday, December 13th, 2007 AT 1:13 PM

2 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Normally for being floored? Sounds like it could be a governor stuck. Does that trans have the throttle pressure linkage from engine to trans?
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Thursday, December 13th, 2007 AT 6:45 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I would run the codes because it sounds like you have an input shaft speed sensor that needs to be replaced. This guide can help and I have included the input shaft speed sensor in case you need it and acode cis stored for it.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If the speedometer is not working the output shaft speed sensor needs replacement. Check out the images (below). Let us know what you find.

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Tuesday, September 10th, 2024 AT 6:01 PM

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