will not shift into overdrive

1997 MERCURY MOUNTAINEER
50,000 MILES • V8 • AWD • AUTOMATIC
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KARINA CLAY
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  • 1 POST
Driving in second gear all the time. Will not shift into overdrive.
Jun 26, 2017 at 10:40 AM
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STRAILER
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Hello,

It sounds like you have a shaft sensor that has gone bad but to be sure lets run the codes to see what comes up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run this test and get back to us we are interested to see what it is.

Cheers, Ken

Jun 28, 2017 at 5:44 PM