2004 Buick Park Avenue Buick Park Ave Ultra

2004 BUICK PARK AVENUE
31,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
JOHN!@
  • MEMBER
  • 1 POST
Going up a hill slowly (approx 15 mph) the vehicle downshifts harshly. Driving slowly preparing to stop at a traffic light the vehicle downshifts harshly. Driving slowly preparing to stop then accelerating causes the vehicle to shudder. No problems driving at highway speeds.
Jul 22, 2008 at 4:47 PM
Advertisement
Avatar
SERVICE WRITER
  • CERTIFIED EXPERT
  • 9,123 POSTS
Sounds like a shift solenoid may be bad.

Any check engine light?
Any transmission codes in the computer listed?
Jul 22, 2008 at 6:53 PM