macattack Posted January 25, 2017 Share Posted January 25, 2017 testing my temp gauge and sender on my allison auto trans. sender has a 2 wire pigtail. i believe one wire goes from sender to gauge , but does the other wire at the pigtail go to ground? thanks Quote Link to comment https://www.bigmacktrucks.com/topic/48514-trans-oil-temp-pigtail-question/ Share on other sites More sharing options...
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