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P1790 Code

Tiny
HOMEZIPBLUE
  • MEMBER
  • 2005 DODGE NEON
  • 92,000 MILES
Replaced the input and output speed sensor the tcm and checked the pcm. Now I check and no codes but still shifts hard from 1st gear to 2nd and sticks in second then wont come out of second till I park the car and kill it the when I restart it same thing shifts hard going to second gear and the sticks in second
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Thursday, June 20th, 2013 AT 12:27 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Most likely either a valve body issue or an internal failure. It is a gear ratio code. The sensors and tcm have no bearing on the code. It is an internal slippage that sets the code and puts it in limp mode

Roy
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Thursday, June 20th, 2013 AT 6:00 PM
Tiny
OAVERY
  • MEMBER
  • 11 POSTS
I had same issue with my 05 neon was not an internal failure, it was a broken wire to the output speed sensor. Repaired wire cleared codes, 20 mile test drive. Problem solved
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Wednesday, September 13th, 2017 AT 2:43 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken
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Thursday, September 14th, 2017 AT 10:43 AM

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