No power to fuel pump, Cant find fuse or relay

CHIPPER10

MEMBER
1985 FORD LTD
18,000 MILES

Replaced relays on left apron and replaced, NO power to fuel pump wire. How does a fuel injection pump Replaced everything, no power to pump or wiring to pump, does it rum intermittently or suppose to run all the time. Tryn to just get power by other means now

5 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

After the engine is started, it should run all the time. Fuel pressure is regulated via the fuel pressure regulator. The fuel pump relay should be under the hood in a relay box.

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Saturday, February 11th, 2012 AT 7:19 PM

RASMATAZ

MECHANIC
75,992 POSTS

Check the inertia fuel cutoff switch

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Saturday, February 11th, 2012 AT 7:19 PM

CHIPPER10

MEMBER
2 POSTS

No 1 seems to be able to find any other relays or fuses, Ive been doing this crap for 29 yrs and sum1 has destryd this car and the wiring. CAN I JUST RUN A HOT WIRE N GROUND TO THE FACTORY PUMP HARNESS PLUG( That goes to pump)
AND BE OK OR NOT?

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Saturday, February 11th, 2012 AT 7:26 PM

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

If you do that, it will run all the time unless you take power from a switched component. Also, if the vehicle is in an accident, the pump will continue running which could be a serious fire hazard. I wound not recommend it.

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Saturday, February 11th, 2012 AT 7:47 PM

RED HOT SCOTT

MEMBER
1 POST

My 1985 Ford LTD LX H.O. 5.0L E.F.I. Has the inertia fuel cutoff switch and fuel pump relay in the trunk above the right wheel well, I'm not an 'expert' about the other models.

No power to fuel pump, Cant find fuse or relay

5 Replies

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