Question about 1988 Ford F 150

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What is wrong with 88 F-150 when it won't run on front gas tank , will run a short time, then quit, replaced pump, still same thing.

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1988 f150 tanks frame rail pump not feeding gas to filter

Posted on Aug 06, 2009

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Try checking the tank selector valve under the truck in the back by the tanks, it might be bad or not operating right, or have it checked.

Posted on Jul 30, 2009

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1 Answer

Can a fuel pump relay cause poor gas delivery


NO, the relay will either work or it won't. (Unplug it and look at it; if the terminals look corroded... replace it.) Most cars have fuel injection systems these days. In addition to the fuel pump that pumps fuel out of the gas tank... there is an injection system pump which is quite expensive. In order of operation: 1) have your injectors cleaned or replaced as needed (new ones run about $30 each), 2) have the injection system pump pressure checked and get a rebuilt pump if needed (brand new one ~$850), and 3) check the fuel pump. If the car has more than 80K miles on it, then suspect clogged or partially obstructed injectors. A BOSCH SERVICE CENTER has a machine to test and clean most makes of injectors. At the same time, replace your fuel filter and use good gas when you fill up. NEVER fill up from a station that just had a fuel truck delivery (if you see the tank truck) as the garbage on the bottom of the tank takes a day or so to settle back down again. Magneti Marelli Check Star also offers good injection system servicing. The dealership should be your last resort as they just replace parts until the problem goes away... leaving you with a hefty bill and a bag of old parts

Aug 27, 2012 | Cars & Trucks

1 Answer

Motor turns over won't start. Cleaned terminals, put in new battery, still won't start. Removed gas cap to vent air on hot day, still won't start. Lights all come on, all electrics appear to...


Your problem may be one of the following:
First check or just replace the fuel filter. Usually located under the car in front of the rear axle, drivers side.
Next, the fuel pump may be worn out. Usually they get loud or stop working (running).
Next, check the fuel pressure regulator. Usually located on the front fuel rail, drivers side.
Is the vacuum line attached? Not leaking or rotted?
Also, do you smell a strong fuel odor when it won't start? May be one or more stuck-open injectors, or the coil pack is bad.
Checking these in the order listed will more than likely fix your problem.
The clicking noise indicates the battery can no longer run the starter, which also means the fuel pump won't run either.

It could be a fuel issue. How old is the fuel filter? Can you hear the pump run for a few seconds when you turn the key on? Try turning the key to ON without trying to start engine three times waiting for the pump to stop running each time. Then try to start the engine. If it starts, Its a form of Vapor lock caused by the extreme heat we have had lately, and a weak fuel pump.

If none of this works, try a new fuel filter first. From there have someone check the fuel pressure regulator and then the pump. If you are in need of a new pump, take my word for it and spend the money to get one from a Dealer, and not from your favorite parts store. Most parts store parts are made in China and they are JUNK.

Aug 28, 2011 | 1997 Chevrolet Blazer

1 Answer

Front tank fuel gauge not working


If the gauge works on the rear tank but not the front, the problem is most likely the sending unit in the front tank. You will have to drop the tank to change it. I guess what I would do is, set your trip meter to zero when you fill the front tank. Then, run that tank to the point where the truck is starting to run out of gas and then switch to rear tank. Keep track of how far you can go on the front tank. Then when you refill the front tank reset the trip meter and switch tanks about 20 miles before you think it's going to run out. It's not a good idea to run those pumps dry. Just make sure you have gas in the rear tank. If you do decide to change the sending unit, run that front tank as empty as you can, also, I would change the pump too. In 92, I think the pump or the sending unit can be replaced seperately. The worst thing about changing those in tank fuel pumps is getting the gas out of the tank. No trip meter? Just write down the mileage from the odometer. Good luck.

Feb 06, 2010 | 1992 Ford F250

2 Answers

I have a 95 F250 which periodically shuts off when using the front fuel tank when ½ full or under. The vehicle also seems to siphon fuel to the rear fuel tank while parked on various occasions. I am...


the fuel pump in the front tank could be over heating causing it to shut down for a short period of time. gas in the tank acually works like a coolant for tank mounted pumps so less gas = more heat

Oct 16, 2009 | 1995 Ford F250

2 Answers

I have a 2000 Chevy 3500 box truck with 2 gas tanks. The gas guage only goes to 1/2 with both tanks full and it won't pump gas from the second tank. How do I fix this.


Fuel levels are equaled in the tanks via a frame mounted transfer pump that transfers fuel from the rear tank to the front tank where the main pump is. Your transfer pump needs replaced, and should run about 60 bucks. Should find the pump mounted to the frame between tanks.

Oct 14, 2009 | 2000 Chevrolet 3500

3 Answers

Won't start? just quit while driving


Need moor info but sounds like fuel filter of fuel pressure regulator.

Jul 15, 2009 | 1996 Chevrolet S-10 Pickup

2 Answers

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

2 Answers

F 250 WONT STAY ON


If your front tank was much less than 1/2 full you may have a bad pump in the front tank. each tank has a low pressure pump that feeds the high pressure pump on the frame rail. If the pump in the tank is bad, the high pressure pump will draw gas from the tank (especially the front tank) until the tank get below 1/2 full then it loses its prime and the engine will stall. Try disconnecting the electrical connection at the high pressure pump on the rail and then cycle the key on and off and see if you can detect the tank pump running or not.

Oct 12, 2008 | 1989 Ford F 250

2 Answers

Fuel pump not delivering fuel.


start the car and get somebody to hit the gas tank with a hammer most of time it will start bad gas pump thanks pierre

Oct 01, 2008 | 1998 Chevrolet Blazer

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