transmission

2003 CHEVROLET TRAILBLAZER
168,000 MILES • 4.2L • 6 CYL • 4WD • AUTOMATIC
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CROWBAIT53
  • MEMBER
  • 1 POST
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.
Apr 11, 2016 at 9:43 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
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.
Apr 11, 2016 at 12:10 PM
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