1989 Ford F150 fuel

1989 FORD F-150
86,000 MILES • V8 • 4WD • MANUAL
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BILLY P
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  • 3 POSTS
Previous owner thinks a fuel cylanoid is bad. The truck will not start - it turns over though. They have a windex spray bottle with a rubber line entering the engine - if you spray gas through the bottle, the truck will start. Where should I start, after I check the fuel/filters?
Jan 24, 2008 at 12:03 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
First check your fuel shut off switch, and secondly make sure there is gas in the tank, if those are good check for 12v at the fuel pump connector, let me know what you find.
Jan 24, 2008 at 3:20 AM
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BILLY P
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  • 3 POSTS
not sure where the swith is the truck has two tanks when the key is turned on you can hear the pumps run I put 5 gallons in each tank to be sure it has gas I found the fuel pres. port any idea what the pres. should be
Jan 24, 2008 at 5:02 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
I would still like you to check for 12v at each fuel pump or disconnec the fuel line at the fuel filter and see if gas poors out or not.
Jan 24, 2008 at 9:09 AM
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BILLY P
  • MEMBER
  • 3 POSTS
took off the port that looks like a vaulve stem on a tire, when i turn the key fuel flies out hitting the bottom of the hood so it should have plenty of pres.I also diconected the fuel pedal posision plug but still nothing
Jan 25, 2008 at 1:45 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
in that case i think you should be checking injector pulse, since it seems that you are getting ample pressure.
Jan 25, 2008 at 5:06 AM
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