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Transmission upshift problem

Tiny
LEITZ1942
  • MEMBER
  • 2006 CHRYSLER PT CRUISER
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
The check engine light comes on while stopped and the transmission will not up shift out of first gear. If I pull over and shut engine off for about 5 minutes and the restart, the check engine light comes on, but the transmission does shift properly. I have had PCM replaced 2 times and numerous other things done. It now does it sporadically.
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Sunday, July 28th, 2019 AT 6:00 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,381 POSTS
Hello

It sounds like you have a input (turbine) shaft speed sensor that is going out. To confirm lets run the codes to see what comes up. also here is the sensor location so you can check it out:

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

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Tuesday, July 30th, 2019 AT 12:15 PM

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