2008 Lincoln MKX Transmission

  • 2008 LINCOLN MKX
  • 0.5L
  • 6 CYL
  • 2WD
  • 153,000 MILES
Intermittent problem - The wrench symbol lights up on dashboard, the mileage gauge reads odom error, the speedometer goes to zero while the car is moving. As I slow down and speed up the transmission does not shift and while accelerating the car moves but does not go to normal speed with acceleration. I turn the engine off and restart, shift into reverse the cars jerks very hard and shift into drive the car jerks very hard. After a few minutes the car goes back to normal operation the wrench symbol goes off and the speedometer begins to work again. It will run fine for a while and then the issue will recur. Trans fluid was recently changed but the problem still comes back.
Do you
have the same problem?
Tuesday, January 13th, 2015 AT 8:01 PM

1 Reply

I contacted a former student who works for a Ford dealer and he said to suspect a wiring problem, specifically corroded connector terminals. There may be repair kits available. Replacing an entire harness is extremely expensive and time-consuming. He said they're seeing a lot of connector problems on all Ford products because the connector bodies are not as weather-tight as they need to be.

Also, the Body Computer, Instrument cluster, and Transmission Control Module are all involved with vehicle communications and can cause shifting problems. The place to start is by reading and recording the diagnostic fault codes in each of those three computers. Those will indicate the circuit that needs further diagnosis.
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Tuesday, January 13th, 2015 AT 8:31 PM

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