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trans temp sending unit wiring. mr688s with a allison 740

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thanks for the info.

i am thinking i will splice a long wire from   the sending unit (ground wire)  and route it inside the cab and when the gauge decides to act up i could touch that wire to a ground source inside the cab 

just to see if the gauge stops acting up.   think i will leave the sending unit  hooked up as original but run a jumper from the ground  wire to inside the cab.

thanks again


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