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Discussion Starter · #1 ·
throwing a TCU short to ground code. it has a banks six gun on it and now it wont go in reverse without clearing the codes and trans slip is in the 500's

where the hell is the tcu on the pickups?
 

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newbie
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under the hood next to the radiator on the drivers side. take the banks off and see if it still does it.

check the harness under the truck to make sure it hasnt worn through anywhere. check all of the connections to make sure they are tight and there isnt water in them
 

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yup get rid of the aftermarket crap and try again, its right there on the fan shroud
 
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