1998 Pontiac Grand Prix overdrive

Tiny
CCOSTELLO1
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 220,000 MILES
Hey I was wondering why my car changes to 4th perfect then it wont go in overdrive
Sunday, March 29th, 2009 AT 1:57 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
If you have an overdrive on/off switch, then it could be defective, otherwise the TCC (torque convertor lockup solenoid) is not working.

Have a trans. Shop check the solenoid, generally they can be changed without removing the trans.
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Sunday, March 29th, 2009 AT 7:05 AM

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