Question about 1985 Ford F150
My Old 1985 Ford F-150 (5.0, 302 - EFI) want crank, it was running fine. The next day it want crank, I sprayed fuel injection it will run and then cut on.I changed the fuel filter in the reservoir and i noticed there is no gas in the reservoir when i took it back off to check it. I took the fuel lines loose down stream of the fuel pump and turn the switch as attempting to crank, no fuel coming out of the Electric Fuel Pump.I have reset the Cut Off Switch / Inertia Switch and it still want crank. I traced the fuel lines and I cant find another fuel filter. Need help please.
I actually have a 1985 302 efi... there are 2 pumps one one the rail right under drivers door and one in the tank.. there are also two filters... one just behind the pump one the rail.. its actually inside a canister that you open with a oil filter wrench then it has a paper element inside..then there is a inline filter that is actually part of the high pressure line the hose is about 3 feet long and runs from your front pump up to the fuel rail agaist the firewall...this one is really hard to find (Buy) good luck wish i hade a carb
Posted on May 25, 2009
Where is the fuel filter location
Posted on Feb 27, 2013
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Posted on Jan 02, 2017
Same problem with my 85 F-150 5.0 EFI---turned out that the fuel pump relay under the hood was teriffically corroded on the inside (I opened up the relay to look inside). When I checked the voltage at the fuel pump it would show 3.5-6 volts instead of 12 volts.
I was thinking fuel blockage or perhaps failure of the in-tank pumps. Sometimes the truck would start and run, othertimes it would neither start nor run. Typically, if running it would stay running until turned off (where the relay had to break).
Changing the green fuel pump relay fixed the problem--12 volts now at the pump and no reoccurance.
Good luck--let me know if this fixed your F-150.
Posted on Sep 22, 2009
Check your fuel pressure,it should be between 28-35 psi,if its to low check fuel filter or fuel pump,to high check fuel pressure regulator. Fuel pressure regulator is located on the top of the gas tank. You can get to it from under the trunk where the fill tnak is
Posted on Feb 14, 2009
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