Question about 1997 Ford Contour

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Over drive light flashes when driven at 70 mph steady i stop shut the car off and start it again light is off but the transmission shifts hard leave the car over night and its fine codes that came up where p0743, p0750, p0755

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P0743 is Torque Converter Clutch solenoid circuit failure during self-test.
P0750 is SS1(shift solenoid) solenoid circuit failure.
P0755 is SS2 solenoid circuit failure.

Sounds like you are having an intermitant electrical failure to the tranny. Check the connector at the Tranny and make sure you don't have a loose connector and check it for corrosion.Trace these 3 wires back GN/WH, GN/Y, and GN/O. these go back to a splice then go into one wire GN/Y and then to the PCM relay in the engine compartment fuse panel. Make sure that this harness is not chaffing on metal somewhere or maybe the splice is going bad.You can try and overlay it from the relay to one of the 3 wires at the tranny connector and see if this solves the concern.

Posted on Mar 04, 2009

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