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Transmission

Tiny
CROWBAIT53
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 168,000 MILES
My trouble codes were all related to transmission shifting solenoids so I replaced with a transmission solenoid kit which includes all the solenoids and wiring harness for transmission. I also changed the trans filter and fluid. I erased the trouble codes, started the vehicle to run for awhile and took it for a short drive. After about 5 to 10 minutes the same trouble codes came on my diagnostics. Am I supposed to get the PCM re-programmed for the tranny? It does not have a TCM.
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Monday, April 11th, 2016 AT 9:43 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You shouldn't have to get anything reprogrammed from just changing a shift solenoid/s check for amessed up harness and check to see if any resistance between trans and pcm it can be a connection problem. Or it's an internal trans problem like a clutch or seal gone bad.
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Monday, April 11th, 2016 AT 12:10 PM

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