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cleaning/checking shift solenoids?

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Old Dec 30, 2010 | 11:32 AM
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cleaning/checking shift solenoids?

I am going to replace my transmission fluid shortly, and while I have the pan off, I want to check to see if one of my shift solenoids is bad, or just dirty.

I have a CEL for one of them (I don't remember which one it is, but after i reset it, it comes back on when i shift into reverse.) The truck shifts perfectly, so I am suspecting that there may be some dirt or something affecting it. Does someone have a schematic or a picture of the solenoids and/or some advise how to check these?

Truck is a 1998 Navigator, 5.4L Triton, Auto tranny (obviously)
 
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Old Dec 30, 2010 | 04:28 PM
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Get the fault code, we're not psychic.
 
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Old Dec 30, 2010 | 04:55 PM
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Originally Posted by projectSHO89
Get the fault code, we're not psychic.
i can't get my truck to the store for a code reader until i get my starter installed. what asked was for info to check any/all of them, while i have the tranny cover off
 
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Old Dec 30, 2010 | 05:06 PM
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pulled up an old post, code is p0770
 
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Old Dec 30, 2010 | 07:17 PM
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Ford did not use that DTC.

Randomly dorking around inside something you don't understand and don't have the service procedures for is usually a good way to mess the whole thing up. Leave the pan on the transmission until you get it running and get a proper fault code. Once you have the DTC, use it to follow the proper diagnostic procedure to pinpoint and repair the fault.
 
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