Question about 1991 Ford Explorer

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1991 ford explorer fuel pump assembly, fuel pump

Cranks smoothly, relay is clicking, checked all fuses to be good,checked plug on pump with key open and its good. no pump action

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Change fuel pump

Posted on Oct 25, 2008

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Posted on Jan 02, 2017

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I have a 96 fordexsplorer and my truck want crank


first check to see if you get spark with key in on position check for spark if you have spark and your saying your explorer won't turnover ( crank ) then first see if headlights work if no check the battery with a testor. if battery is good check the fuel pump fuse be sure its not burnt out and is in tight. if fuse is good turn key to on position and at the same time listen for the electric fuel pump to hum if you hear no short hum your pump may be dead , be sure to check fuel relay switch to be sure. if its the pump its about a $400.00 job using a ford pump stay away from store brands.

May 10, 2014 | Cars & Trucks

1 Answer

Have a 1999 ford explorer sport 4x4, cranks want start. have replaced fuel pump, crank senser and cam senser, checked fuzes, replaced computer. doesnt seem to be firing


When you turn the key on you should beable to hear the fuel pump come on. Other than that you have a fuel pressure test port, looks just like a tire valve stem get a little probe press the valve after cranking fuel should come out strongly and not dribble out. If is doesnt seem to be firing your going to have check the coil pack for spark from the coil pack take one plug wire out and put it in a position that as you crank the vehicle you will be able to see spark jump or even hear give it a 1/4 air gap from its connection. If you dont have spark and your timing chain isnt broken you need to check for power the choice of tool is a test light.or volt meter. If you dont have either test tool we will go by sound when you turn the key on the engine fuse box has relays do you hear them click. That click noise will be fuel pump relay and PCM relay for power inpect those relays for corrode connections you mainly have a power problem and inspect for proper ground a missing ground can also cause the ECM to not fire the coils2_26_2012_7_32_43_am.gif

Feb 26, 2012 | 1999 Ford Explorer

1 Answer

Fuel pump runs when key is off


If your pump is continuing to run with no regard to the key position your fuel pump relay has failed in the on position. This happens when the secondary contacts fuse together and leave the relay stuck in the on position.

Replace fuel pump relay and your problem should stop.

Jan 16, 2010 | 1991 Ford Explorer

1 Answer

Where is the fuel pump relay in a 91 ford explore??


In the underhood power distribution box, the fuel pump relay is the same as the a/c relay swap the two and see if your pump starts to run, if so replace it, if not check power at the pump connector located on top of fuel tank, if it has power and the pump does not run then the pump is bad, remember when testing for power the fuel pump only runs for about 3 seconds when you turn on the key, after that you have to crank the engine, hope this helps, let me know

Dec 08, 2009 | 1991 Ford Explorer

2 Answers

Engine cranks but won't start, no fuel. Fuel pump and filter just changed. Accident button reset although the button feels free, no clicking or activating.


you going to have to narrow it down to see what part is defective. first check make sure you getting sparks by pulling one of the cable and use spare plug and ground it making sure you getting fire when turning engine over. 4 things need to check for fuel delivery. fuse, relay, fuel pump and crank sensor. assumed fuse and relay are good, using 12v light tester locate the fuel pump connectors and connect pos and neg terminal and have someone turn engine over and see is you getting any power to the pump, if the pump is good, crank sensor will be faulty, what crank sensor does it sense the flywheel turning sending info to the ECU then the ECU send power to the fuel pump. keep in mind, fuel pump will only turn on as long the crank sensor sense the flywheel turning.

Nov 06, 2009 | 2002 Ford Explorer

1 Answer

MY FUEL PUMP KEEPS RUNNING EVEN WITH THE KEY IN THE OFF POSITION,1991 FORD EXPLORER


Replace the fuel pump relay, it is not uncommon for them to get stuck in the "on" position. The relay is located on the front right inner fender panel.

May 13, 2009 | 1991 Ford Explorer

2 Answers

92 ford explorer (crank but no start and no noise from fuel pump)


Probably, also, if it's an electric, check to make sure the pump is actually getting power. The wires may have gone bad.

Nov 25, 2008 | 1992 Ford Explorer

3 Answers

1991 Explorer fuel pump


so where is the shut off reset for the fuel pump on the 91 explorer? does anyone really know?

Aug 27, 2008 | 1991 Ford Explorer

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