Just started not shifting out of first gear. It sat for nine months.
Jan 7, 2021 at 6:56 AM
Transmission not shifting out of first gear
2004 PONTIAC GRAND AM
PABINHACK
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning,
Is the check engine light on?
https://www.2carpros.com/articles/automatic-transmission-problems
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
The throttle position sensor controls the shift points for the transmission. If it is bad, it should set a code.
I would start by changing the fluid and filter as nine months is a long time to sit.
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
Roy
1. Remove the air cleaner outlet resonator.
2. Disconnect the throttle position (TP) sensor harness connector (2).
3. Remove the throttle TP sensor screw.
4. Remove the TP sensor and seal.
Is the check engine light on?
https://www.2carpros.com/articles/automatic-transmission-problems
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
The throttle position sensor controls the shift points for the transmission. If it is bad, it should set a code.
I would start by changing the fluid and filter as nine months is a long time to sit.
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
Roy
1. Remove the air cleaner outlet resonator.
2. Disconnect the throttle position (TP) sensor harness connector (2).
3. Remove the throttle TP sensor screw.
4. Remove the TP sensor and seal.
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Jan 7, 2021 at 9:08 AM
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