89 F150 STRAIT 6 FUEL PUMP ??????

1989 Ford F-150

Tiny

genmac29

July, 29, 2006 AT 1:46 PM

I have been told that I have 3 fuel pumps. One in each of the two tanks and one that rests directly behind the fuel filter. Truck starts " sometimes" and when it is not starting the fule pressure reads zero for both tanks. What are the odds it is the outer needing replaced against bothe inners gone bad?

FOUND 10186 RELATED QUESTIONS

2 Answers

Tiny

Service Writer

July, 29, 2006 AT 2:14 PM

I would be curious if there is power getting to them. IF there is a fuel pump relay, swap it with another one that is the same and see if she goes.

Tiny

Mikeybdman

July, 29, 2006 AT 2:24 PM

It looks like your EEC Module sends a signal to activate your fuel relay. This fuel relay controls power to all three pumps. I would agree with the last poster that the relay is the best place to begin.
If that does not fix it, then get beside the pumps and see if one or all of the pumps are running. The pumps in the tank will only run the one in the tank selected. The selection switch powers the gauges and the pump for the tank selected.
It shows a VIP Self Test Connector that would allow you to check for power to the relay if the relay doesnt fix it.
Good luck

Please login or register to post a reply.

Fuel Pump Replacement Done Right
Fuel Pump Replacement
Fuel Pump Replacement Ford Mustang
Fuel Pump Test Chevy Tahoe