Car won't shift out of first gear. Speedometer swings back and forth. Input and output sensors replaced along with solenoid. No codes coming up
Sep 23, 2026 at 10:03 PM
Stuck in first gear?
BTFLYMOM
- MEMBER
- 2 POSTS
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No corroded wires. Can't get out of limp mode. Tried disconnecting battery to reset.
Sep 23, 2026 at 10:15 PM
The speedometer swinging back and forth is the biggest clue here. Transmission shifting depends heavily on a clean output speed signal. If the transmission controller sees an erratic or missing output speed signal, it can command limp-in mode, even though the output speed sensor itself has already been replaced. So you can have bad wiring or the connector is bad. Please inspect these and get back to me.
Sep 24, 2026 at 7:59 AM
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