Question about 1988 Ford F 150

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I I have a 88f150 4.9 6 cylinder not getting power to fuel pump replaced fuel regulator and check cut off switch under dash no power to ether what could be the problem.

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Green relay lhs near air cleaner box may have blown. check first.

Posted on Apr 26, 2010

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1992 Fleetwood P30 motorhome I change the fuel pump it was working and then all of a sudden all my power to my dash lights went out I jumped solenoid and got power back to my dashboard now my fuel


You need an electrician. He will probably need a wiring diagram to figure out what circuit has the malfunction. Have you checked to make sure the fuel pump fuse has not blown?
By jumping the solenoid, do you mean you bypassed it? I don't even know what solenoid you are referring to.
The pump circuit, if like other GM vehicles of those years, probably has a fuel pump relay (under the hood) and a fuel pump fuse- probably a 15 amp blue fuse, could be under the hood or under the dash. If you check all fuses, then find the pump relay, now you can check there for power available to the relay. The pcm is what signals this relay on. Does your pcm have power? Does your check engine light come on when you turn the key to ON?

Dec 24, 2016 | Cars & Trucks

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I have a 2000 chevy malibu drove it for a few days then the other day went to start it turned the key no dash lights like the battery or any of the others that usually come on the mileage dont come on...


Did you check all the fuses under the hood? That's where the ignition fuses would be. The same "run" wire to the ignition coils, when the key is in on or run, or the same set of run wires out of the ignition switch both to the dash warning lights and gauges, and to the ignition system on the engine, well they're all the same power source, and more so the computer gets power from the ignition switch being on as exhibited by the check engine light turning on when key is turned to on.
It sounds like the ignition switch is either not getting full power in, or it's not sending power out as it should.
Check your other battery power-do you have headlights? That would be entirely separate from the ignition switch, but it verifies that battery power is getting to the fuse and relay block under the hood. Is the cranking speed normal? not too slow?

Mar 04, 2014 | Chevrolet Malibu Cars & Trucks

1 Answer

1994 ford explorer, new fuel pump,new fuel pump relay,no power to fuel pump


Have you checked the fuel ppm cut off switch? It should be under the passenger side of the dash. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Feb 21, 2012 | Ford Explorer Cars & Trucks

1 Answer

I have recently replace the fuel pump and had a tune up done on my 1998 Dodge Grabd Caravan but it has a really hard start and when driving it sometimes it cuts off or doesn't want to go. Any solutions...


Verify that the car is getting fuel and spark to the cylinder.
Verify that the fuel pump is generating enough pressure.
May have to check and/or replace the fuel pressure regulator.

I once had a fuel pump replaced on a 1990 Cutlass Calais (GM Product) at Firestone, and the pump went bad within a couple of weeks.

Had it replaced with a different brand fuel pump, under warranty, and it has worked ever since.

Nov 08, 2010 | 1998 Dodge Caravan

3 Answers

Where is the fuel relay located in Mazda mx6 1988?


On that one it actually called circuit opening relay under left side of dash in fuse relay box


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Feb 08, 2010 | 1988 Mazda MX-6

2 Answers

Took out both pumps and tested them and they both work perfectally,I just bought this bronco and I really don't know much about anything. The truck with start with ether, the inertia swith is on, I am...


Check the fuel pump relay and all fuses with a test light.Also on that model,should be a oil pressure switch that cuts the fuel off,checkit,lots of time the switch will be leaking oil.

Aug 07, 2009 | Ford Bronco Cars & Trucks

2 Answers

Not getting fuel


hi there,
check your fuel pump fuse on fuse box panel it was located driver seat left side on dash board or on right side of engine fuse box,pull out cover cover, on the backside cover there is specified fuse find fuel pump fuse replace if busted.how could you know if busted on fuse there is thin wire serve as connection if this was cut off inside means it was busted,on compare to other fuse the wire inside fuse.if good check your relay fuel pump relay located beside steering rod under the dash board, it might be defective also.have a nice day rate my fix thanks a lot.

May 19, 2009 | 2000 Ford Crown Victoria

2 Answers

Range rover v8 1994 no power to fuel pump thinking relay but there is a cut off switch under dash you have any of these problems


some one must have press the switch to cut off the fuel pump, easy solution..
just press again on the cut off switch, to activate..

Jul 08, 2008 | 1994 Land Rover Range Rover County

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