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2002 Pontiac Grand Prix TCC Solenoid

Tiny
DAQUILLE
  • MEMBER
  • 2002 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • AUTOMATIC
  • 128,000 MILES
The check engine light is on in my car and the codes that came up were P0128(OEM Brand: Dometic) and P0742 (OEM Brand: General Motors). I would like to know ways I could fix both problems and steps on how to change the TCC myself on my car.
Friday, October 3rd, 2014 AT 9:30 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
For coe 128 it may be a bad coolant temp sensor as that code says it'snot reading what tstat is or engine temp. For torque converter clutch you need to pull trans to fix it so get a manual or rent one online here for a week. It's way to lengthy to put on here as trans has to be removed.
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Friday, October 3rd, 2014 AT 1:00 PM

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