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Showing results for tags 'lift pump circuit'.
Found 2 results
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what is the fix ,my truck as the same code
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Does anybody know the voltage when starting .When I turn the switch to on I m picking up 12 volts for 2 seconds & then it drops to 8 volts? Then when I turn the switch to start & let go I get 12 volts for 25 seconds then voltage drops to 8 volts? Why does it drop to 8 you would think it should drop to 0 volts.These test are done at the transfer pump connector.