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FUEL PUMP RELAY

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Old Jun 12, 2011 | 01:15 PM
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FUEL PUMP RELAY

MY TRUCK WOULDNT START AND I THOUGHT MY PUMPS WERE OUT. THE PLUG TO THE FRONT GAS TANK HAS A WEAK SIGNAL WHEN I PUT THE TESTER TO IT, THE INERTIA AND FUEL SELECTOR SWITCH HAVE NO POWER. THE RELAY HAS I THINK 4 TEETH AND I PUT THE TESTER TO THE THE 4 HOLES AND 3 LIT UP, SO I TAKE IT THE BLUE/WHITE HAS A SHORT.SO SHOULD I REPLACE THE WHOLE WIRE OR SPLICE IT TO THE ONE HAS POWER IN THE OTHER RELAY., HELP, DAMN TRUCK ACTS LIKE IT HAS NO GAS.
 
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Old Jun 12, 2011 | 02:06 PM
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From: Easton,Ks
What are you working on?
If it is your 1994 then there is not a Blue/White at either the Power relay or the fuel pump relay.
Any relay is going to have at least one wire (ground) with no power on it.
Does the relay click when the key is turned on and drop out one second later?
 
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Old Jun 12, 2011 | 02:24 PM
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YES THERE IS A CLICK AND I REPLACED THE FUEL PUMP YET IT DOESNT BUZZ LIKE IT SHOULD. THE INERTIA AND SELECTOR PLUG HAVE NO FIRE BUT THE RELAY DOES.THE TESTER LIGHT SHOWS A WEAK LIGHT WHEN U PUT IT IN THE FUEL PLUD ON THE TANK.
 
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Old Jun 12, 2011 | 02:28 PM
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I THINK ITS GREEN/WHITE
 
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Old Jun 12, 2011 | 02:30 PM
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From: Easton,Ks
Is this the 1994?
Try swapping the horn relay with the fuel pump relay.
 
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Old Jun 12, 2011 | 02:39 PM
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From: Easton,Ks
Originally Posted by JOHNERIK4
I THINK ITS GREEN/WHITE
I do not see a green white either.
Does your computer have lower case on it.?



/
 
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Old Jun 12, 2011 | 02:40 PM
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LEMME CHECK
 
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Old Jun 12, 2011 | 02:44 PM
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YEA 94 F150 XL 5.0
 
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Old Jun 12, 2011 | 02:50 PM
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na didnt start
 
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Old Jun 12, 2011 | 03:00 PM
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From: Easton,Ks
Did you check fuse "O"?
 
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Old Jun 12, 2011 | 03:05 PM
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From: Easton,Ks
Ground Pin #6 of the EEC self-test plug and tun on the key.
Check for power at the Inertia switch (both wires).
Also try pushing the button down on top of the Inertia switch.



/
 
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Old Jun 12, 2011 | 03:11 PM
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Originally Posted by subford
I do not see a green white either.
Does your computer have lower case on it.?



/
Originally Posted by JOHNERIK4
LEMME CHECK
Wow that's funny,

Now why do I get the feeling he went out to check the truck?
 
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Old Jun 12, 2011 | 04:20 PM
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i had used the tester on that inertia plug, no fire. i already pressed the button on it, nothing. i have the laptop outside with me.
 
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Old Jun 12, 2011 | 04:21 PM
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the fuse o was fine.
 
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Old Jun 12, 2011 | 05:42 PM
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From: Easton,Ks
I guess you will then have to check for power at C202, the safety wall plug.
Keep that pin #6 grounded with the key on and use a test light if you can.
 
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