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600 Posts
i installed my isspro tranny gauge today and its not woking. The lights work but the needle won't move. I have the sending unit installed in a transcender that attaches to the cooler line. (The line to the rear of the vehicle) I think thats the right one. Anyways, i pulled the sender out and heated it with a hair dryer untill i couldn't even touch it and still the needle didn't move. The drving box has power and the ground is good. i double checked all the connections. Any ideas?? Should there be power to any of the 4 wires coming from the driving box to the gauge?
