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zoro4's avatar
zoro4
Explorer
Sep 20, 2013

Aftermarket water temp gauge reads low due to wire length

I'm working on a rear engine RV and installed a new water temp gauge and I noticed it's reading low by atleast 10*F. Called the gauge supplier and they assure me it's due to the long wire length but t...
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Executive45's avatar
Executive45
Explorer III
Sep 20, 2013
If they're saying it's because of the wire length, what they're really saying is the wire GAUGE is too SMALL. If you're using 18ga, bump it up to 14ga. If 16GA bump it to 12ga. You could also use a relay if you've already wired it.....Dennis

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