Hello JACUSTOMER, is the check engine light on in the vehicle?
Ok, and which is the highest gear that the vehicle will shift into?
3rd gear out of 4 gears
Ok. If the vehicle will not shift into a higher gear then this then you either have a bad shift solenoid or a problem with the vehicles speed sensor. Both of these will cause this. If the speedometer is working properly then you more than likely have a bad shift solenoid.