2002 Pontiac Grand Prix TCC Solenoid

2002 PONTIAC GRAND PRIX
128,000 MILES • 3.8L • 6 CYL • AUTOMATIC
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DAQUILLE
  • MEMBER
  • 4 POSTS
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.
Oct 3, 2014 at 9:30 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
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.
Oct 3, 2014 at 1:00 PM
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