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Need some GMC Fuel Pump Relay Help, Please
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03-30-2022, 10:10 PM
jww
Chief Ponti-yacker
Join Date: Aug 2005
Posts: 698
Thanks Roger….See if I got this right….
87 constant hot
86 constant ground
85 receives power from ECM to close circuit and energize 30? If this is correct I think that’s not happening with switch on.
Appreciate yur comments!
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