Transmission

Asked by Mar 25, 2017 at 04:00 PM about the 2001 Pontiac Grand Prix

Question type: Maintenance & Repair

Transmission won't shift right

3 Answers

22,845

Well, it could be a bad transmission or.. computer , speed sensor.. Have it checked out before you do anything.. Good luck.

2 of 2 people found this helpful.
75,465

Best to take it to a transmission shop for proper diagnosis.

2 of 2 people found this helpful.
71,595

If you're experiencing hard shifting you may have lost overdrive and torque converter clutch lock in. It's common with these transmissions. Hard shifting is a secondary symptom as the computer has increased the transmission fluid pressure to try to compensate for the problem. At cruising speed (60-70 MPH) you may be able to hear a whine and your tach will be around 2500 to 3000 RPMs. On a normal transmission the tach should be between 1500 to 2000 RPMs at cruising speed. HTH. -j

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