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Transmission Fluid Temperature Sensor

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Old Apr 9, 2011 | 03:48 PM
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Phillip Vega's Avatar
Phillip Vega
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Transmission Fluid Temperature Sensor

Im having a problem with my Check Gauge light coming on and Tow Haul light flashing on my 04 F-250. I got a Transmission Fluid Temperature Sensor from my local Ford Dealership. They also said i needed to replace the Transmission harness for this application. My questions are, Is Mercon SP the only ATF that can be used on the Torque shift transmission, and do i need to replace the harness or just the sensor? I have read up a little on this and so far everything say swap out the sensor and your good to go. Any help would be appreciated. Thanks
 
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Old Apr 10, 2011 | 05:36 AM
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Mark Kovalsky's Avatar
Mark Kovalsky
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MERCON LV is replacing MERCON SP. Use one of those or be prepared for expensive transmission repairs.

Usually it's the sensor that fails, but sometimes it's the harness. While it is apart it doesn't cost much more to change both, then you won't have to do it again.
 
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