Hi nigel504,
Is the S indicator lights blinking while driving when trans fails to shift? Is the speedometer working?
Possible causes for non shifting could be due to :
1. Faulty Transmission Control Module.
2. Throttle position sensor.
3. Faulty sensors.
4. Bad solenoids.
Flip up the passenger side carpet and turn ignition on.
Note if the LED light is blinking, ( it is below a round window on the control module protective casing)
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Thursday, October 21st, 2010 AT 11:12 AM