fuel pressure not there
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Mountain Pass
Joined: Sep 2003
Posts: 188
Likes: 1
From: Michigan
fuel pressure not there
Before I droped the rear tank It was fine but i droped the rear tank to replace it and now i have no fuel pressure. Both pumps are getting power i am getting power to the relays, but no fuel in the rail?? any ideas. Oh yeah I did run out of gas on the rear tank before i replaced it and i thought i ran out in the frt untill i droped it to replace to float, i wasnt geeting a reading on the frt tank. there was fuel in the frt tank.. I am think a bad filter?? any help woule be great since i havent had the truck out of the garage since i bought it 3 weeks ago
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Mountain Pass
Joined: Sep 2003
Posts: 188
Likes: 1
From: Michigan
yeah when i turn the key forward i can hear them both engage and i can hear the relay click and i have cked for power to both of them and its there just no fuel making it to the rail
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
Turn the ignition switch on and off several times. Sounds like there's air in the system still. Do you see any leaks?
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Mountain Pass
Joined: Sep 2003
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From: Michigan
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New User
Joined: Oct 2003
Posts: 9
Likes: 0
I didn't see what year truck you're dealing with but is it a possibility that your fuel inertia switch tripped? On my '96 it's located behind the side kick panel on passenger side near the top. My panel has a slight rounded cutout where the switch is located and you can get a finger in there to press the button at the top of the switch to reset. Good Luck!
Senior User
Joined: Dec 2002
Posts: 147
Likes: 2
From: Heart of Dixie
what year is your truck...?
86- 94 i know for sure, yours too probably uses the manual fuel tank selecter valve.
rubber diaphram in switcher goes bad
it uses fuel pressure to switch front to rear, vice versa.
that's why when you flip the switch to front tank no fuel gauge reading.
86- 94 i know for sure, yours too probably uses the manual fuel tank selecter valve.
rubber diaphram in switcher goes bad
it uses fuel pressure to switch front to rear, vice versa.
that's why when you flip the switch to front tank no fuel gauge reading.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
it uses fuel pressure to switch front to rear, vice versa.
that's why when you flip the switch to front tank no fuel gauge reading.
that's why when you flip the switch to front tank no fuel gauge reading.
I don't think it's the inertia switch because he said the fuel pumps are running.
