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Old 02-27-2020, 09:27 AM   #58
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: 1973-1991 Dual fuel tank systems theory of operation

Quote:
Originally Posted by Hart_Rod View Post
Disregard the relay is good. Either my switch is bad OR the valve is not moving.
For those that need one it's a very common GM 14089936 sealed relay.
The AC Delco part is cheaply made in China now so I'd check over the other usual suspects like NAPA Echlin AR279 or Standard Motor RY109... one of these may still be made somewhere outside of China or India.
GM used this for sealed control of a bunch of circuits on the 86 and later squarebodies and the 1st design GMT400 trucks.
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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