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04-13-2018 #1
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Electric Fuel pump not kicking on
Trying to troubleshoot if my electric fuel pump died today. Was programming my Racepak gauges with the key on so the pump was running. Probably was running for 5 minutes before I was done programming the gauge and started the car. Car started and ran fine for 8-9 minutes then died. Fuel pump is not kicking on. Before I drop the tank and pull the pump to test it could it be anything else?
Doug L.
68 RS/SS Conv. LSA/T56.
67 RS Coupe LS2/T56 named "NutKse"
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04-13-2018 #2
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- Oct 2014
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- DFW, Texas
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How is it wired? How is it controlled?
1972 Plymouth 'Cuda - Not LS-swapped, 5.7L Hemi [MS3 Gold Box], T56 Magnum 6-speed - 'Cuda Build Page
1976 Dodge D100 - Warlock
2016 Subaru WRX - E30 Tune
04-13-2018 #3
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- New Jersey
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I’m chasing the wires but it’s wired to a relay then to a modified factory LS harness. Just weird pump stopped after it ran for awhile before car was started.
Doug L.
68 RS/SS Conv. LSA/T56.
67 RS Coupe LS2/T56 named "NutKse"
04-14-2018 #4
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Before ripping it out, I would run some wires directly from the battery to the pump. See if it runs...If not, then the pump is dead.
Originally Posted by thedugan
If it does run, then it is a wiring/relay/fuse issue...
Andrew1970 GTO Version 3.0
1967 Cougar build
GM High-Tech Performance feature
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"You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her
04-15-2018 #5
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Ended up pulling the tank anyway seeing I wanted to replace the fuel sending unit anyway. Pumps works fine so that’s not the issue. Relay tests fine so that’s not the issue. Gotta keep chasing wires now.
Doug L.
68 RS/SS Conv. LSA/T56.
67 RS Coupe LS2/T56 named "NutKse"
04-15-2018 #6
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How is the relay triggered? Did you check the fuse? Originally Posted by thedugan
Andrew1970 GTO Version 3.0
1967 Cougar build
GM High-Tech Performance feature
My YouTube Channel Please Subscribe!
Instagram @dr__efi
I deliver what EFI promises.
Remote Holley EFI tuning.
Please get in touch if I can be of service.
"You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her
05-13-2018 #7
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- Dec 2010
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disregard
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