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1986 Ford F150 not getting fuel.

1986 f150 truck shut off after turning off the hiway replaced fuel pump in the front tank. Truck drove out of garage idled fine shut off when trying to give gas. Replace fuel filter and relay switch now it will not stay running seems like when it warms up the truck dies. You can hear the fuel pump when cold and you start it can not hear pump when the truck has been started a few times and there is no pressure in the fuel line.

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  • Cars & Trucks Master
  • 14,394 Answers

Does it run good using the back tank?if so then the fuel line may be clogged in the front tank.Need to blow it out and check for leaks.

Posted on Jul 08, 2017

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Posted on Jan 02, 2017

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  • 21 Answers

SOURCE: truck runs rough

Sounds like one of your chambers isn't firing. Run your car for a few minutes, shut it off then pull your plugs one at a time and see if one of them is wet. Might just need a new plug.

Posted on Nov 28, 2008

  • 7 Answers

SOURCE: 1991 ford f150 no noise from fuel pump and truck will not start

get a code reader like the Actron CP9015 Code Scanner, 20 dollars and will flash codes. if it will not diagnose itself, the ecm must be replaced. this fixed my dads truck with the same problem

Posted on Nov 28, 2008

  • 1596 Answers

SOURCE: 2004 F150 5.4 LITRE TRUCK STALLS WHEN WARM

  1. IAR Valve
  2. Fuel filter
  3. Fuel preasure regulater
  4. Slow to Go FUEL PUMP

Posted on Jan 13, 2009

  • 295 Answers

SOURCE: 1989 ford f150 w/ 5.0 liter..... engine light on

I would check the oil pressure of the engine. The reason is the timing chain tensioners are run with oil pressrue. I think your timing chain tensioners are leaking down when engine is getting to operating tempature . The oil is thinning down as warms up , as it should to lubercate . I would check compression and do a cylinder leak down test on all the cylinders. Then if the compression is good and the cylinder leak down is good. I would change all the timing components, ( chain, timing gears, timing chain tensioners )

Good Luck , I hope this helps.

Posted on Apr 18, 2009

  • 170 Answers

SOURCE: 1990 F150 Fuel pump just replaced but wont turn on

Replace the fuel pump relay. And if your truck has dual tanks there's three fuel pumps, one in each tank and another secondary fuel pump.

Posted on Aug 21, 2009

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3 Answers

We replaced the fuel pump driver module and 2004 ford f150 still won't start. It is showing a theft code. Help?


Hi. There is a ground wire on the frame about half way back. Be sure there is a good connection. Plus check every other ground wire. Do Not spend money on parts until you have cleaned every ground terminal!! This is an on going prob with Ford.

Mar 24, 2010 | 2004 Ford F150

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I would drop the tank and replace the pump. These types of problems are fire hazard.

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1986 F150: Rear gas tank results in engine sputtering/dies


you are going to have to replace the in tank low pressure fuel pump, we call this the "lift" pump.

Oct 06, 2009 | 1986 Ford F150 SuperCab

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Ford F150 1990 truck - Gas was leaking from the front tank. Replaced the grommit and now it is pulling the gas from the rear tank to the front an overflowing out of the nozzle where the gas cap is.


You definately need to get the truck serviced soon. To just guess at it, the balance pump isnt shutting down. The guage may not connected or moving freely.

Jun 18, 2009 | 1990 Ford F150

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1992 f-150 dual gas tanks tank closest to cab of truck pumps gas out the fuel cap


A FORD EQUIPED WITH DUAL TANKS THIS YEAR MODEL HAS CHECK VALVES IN THE FUEL PUMPS .THE FUEL RUNS FROM THE REAR TANK WHEN IT IS POWERED ON TO A TEE AND INTO THE SAME LINE AS THE FRONT PUMP . THE PROBLEM IS AT THE BOTTOM OF THE FRONT FUEL PUMP THERE IS A CHECK VALVE ON THE FOOT AND IT IS NOT WORKING.WHILE THE TRUCK IS RUNNING WITH THE REAR FUEL PUMP ON IT IS PUMPING FUEL INTO THE FRONT TANK . IT WILL RUN OUT OF THE NECK WHEN IT IS FULL.THE FIX IS SIMPLE REPLACE THE FRONT FUEL PUMP. THEY DONT MAKE A CHECK VALVE REPLACEMENT I CHECKED I HAD THE SAME PROBLEM AS YOU.

Jun 02, 2009 | 1992 Ford F150 SuperCab

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I have a 1991 Ford F150 4 x 4 inline 6 4.6L. Dual


your truck is a 4.9L, make sure you have power to the front tank fuel pump. is the power to the pump is ok and you can hear the pump run for a second or two when you key the vehicle on... replace the fuel tank selector valve

Apr 17, 2009 | 1991 Ford F150

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1995 ford f150 fuel pump


Your truck is fuel injected. On the fuel delivery rail in the engine compartment there is a cap you can take off to check for fuel pressure. Hook a mechanical gage to it and check to make sure the fuel pump is working. Also if you have a dash switch to change over to the different tanks check it. Often these switches become bad and the fuel will not flow. The switches are about $ 40.00 dollars. To replace the fuel pumps you must drop the fuel tanks and remove each fuel pump from the tank. The cost for the pumps alone will be about $300.00 to $ 500.00 depending on who you purchase them from. The universals are cheaper, but the Ford pumps are an exact match and you can change them with out any problems.

Feb 08, 2009 | 1995 Ford F150 Styleside Regular Cab

1 Answer

1995 ford f150 fuel pump


will it run off the rear tank?if you have power too the rear pump and the truck runs off it ,its prob a bad pump in the front tank,you need too drop the front tank and replace the pump

Jan 24, 2009 | 2004 Ford F150

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