Why did my 1989 F150 have a fuel problem?

I have a 89 Ford F150 XLT Lariat 8 cyl 302 that had a fuel problem. It turned out to be caused when the butterfly valve got stuck in the middle. The butterfly valve has gas lines coming from both gas tanks into just one gas line that gos to the high pressure fuel pump on the rail along the drivers side door.

Where is the fuel tank on a 1989 Ford F-150?

I also decided to bypass the fuel tank selector switch, connecting the second (middle) slot on the left (power in) to the lower left slot (front in-tank pump). I also connected the second (middle) slot on the right (signal to fuel guage) to the lower right slot (front tank sending unit).

Where does the fuel come from in a Ford F150?

It seems the truck is drawing fuel from the rear tank, even though the selector switch is set for the front tank. I have gotten under the truck while a helper turns the key to the on position, engine off. The front pump runs for a short burst when the key is turned on and the selector switch is set for the front tank.

What kind of fuel tank does a 1992 F150 have?

I have a 1992 F150 4×4, dual tank, 5.0L, with fuel injection. There are two high pressure pumps, one in each tank. There is no third pump on the frame rail. There is no distribution valve on the frame rail.

Why is my 1989 Ford F150 not getting gas?

– CarGurus 1989 F150 Fuel problems. I have a 1989 Ford F150 with the 5.0 fuel injected. Its not getting gas and I don’t know where the problem begins.

Where does the gas come from in a Ford F-150?

The internal (low pressure pumps) in the gas tanks start pumping as soon as you turn on the Key (KOEO) and pump gas out of the tank to the fuel line, down to the swap over valve.

What causes a Ford F-150 fuel pump to fail?

Several fords that I have worked with fail at the relay controlling the fuel pumps, fore and aft. (You have two pumps, one on the rail and one in the fuel tank.) If the pump powers up, replace both the relay and the connector. Corrosion will cause the relay to fail. 35 people found this helpful. Where are these wires at? And what colors are they?

What kind of fuel pump does a Ford F-150 have?

Two- is electrical of course and works a silonoid valve at the swap over valve and the internal low press fuel pump.

The internal (low pressure pumps) in the gas tanks start pumping as soon as you turn on the Key (KOEO) and pump gas out of the tank to the fuel line, down to the swap over valve.

Two- is electrical of course and works a silonoid valve at the swap over valve and the internal low press fuel pump.

Why did my 1986 Ford F150 die on Me?

I just overcame a 1986 5.0 efi f150 randomly dying on me. The fuel pump relay (driver side firewall under the hood hinge) powered up for 2 seconds at key to run position, but the high pressure fuel pump did not run at all, and there was no fuel at the fuel rail (used a modified toothpick to press the schraeder valve open).

Where is the HPFP on a Ford F-150?

Make sure the wires to the HPFP are all connected Once past the swap over valve, is the HPFP (High pressure Fuel Pump) and then more fuel line up to the engines “Metal” fuel rail and EFI (Injectors). Then on the return end fuel rail (Metal rail) , there is a mechanical fuel pressure regulator valve.

Is there a problem with the Ford F250 fuel tank?

Here’s a story from a reader about a problem with hard starting and fuel tank woes on Ford F250s. Okay, here’s the story. There is a recall kit for several years of F-250 trucks (including 93) which consists of two in-line check valves and a new fuel pressure regulator.

Is there a problem with my 1989 Ford F-150?

1989 Ford F-150 IDLE PROBLEM FOUND!! – YouTube 1989 Ford F-150 IDLE PROBLEM FOUND!! If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.

Where does the fuel line go in a Ford F250?

The valves go in the supply line from the fuel pumps to the tanks and prevent fuel from flowing into the tanks from the supply lines. This kit was issued by Ford to prevent two problems: fuel flowing from one tank into the other through the supply lines, and long cranking times due to fuel running back into the tanks after the vehicle was shut off.

Can a faulty fuel pump cause poor mileage?

Poor Mileage. A faulty fuel pressure regulator can also be to blame for a sudden decrease in fuel mileage. Alternatives. These symptoms can also occur with a plugged fuel filter, failing fuel pump, or faulty PCM. In the event you have these symptoms, it is best to have the entire fuel system inspected by a qualified Ford fuel system technician.

What kind of gas does a Ford F150 use?

With the fuel tank filled with 93 octane gasoline, the Ford F150 turned in a 0 to 60 run in 5.3 seconds. It is quite an impressive achievement when you consider that the Ford F150 weighs nearly three tons (5,594-pounds). When the C&D crew switched over to 87 octane fuel performance dipped noticeably.

Can a F150 run without a fuel pump?

Without gas your F150 will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).

What kind of engine does a 1987 Ford F-150 have?

1987 F-Series Powertrains Familiar engines populate the 1987 F-Series line, though fuel injection on the 4.9 liter inline six cylinder gave the base engine for the F-150/250 a much needed power boost. The high output 5.8 liter was standard for the F-350, though the 7.5 liter monster remained the heavy hauler power plant of choice.

What causes a Ford F150 engine to stall?

If your Ford F150’s engine timing is off, it’s going to stall out, misfire, and altogether not run properly. Here are some of the more common causes of an engine timing problem: VVT Problem – Many modern engines are equipped with Variable Valve Timing.

What causes a Ford F150 to shut down while driving?

The engine needs a strong ground to the chassis in order for your F150’s various electrical systems to work. If that cable is corroded, there could be problems such as misfiring, slow/no starts, or even the engine dying while driving. This is a common cause of many “gremlins”. 5. Bad Alternator

Can a poor fuel pressure regulator cause a Ford to stall?

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

What happens when the alternator goes bad on a F150?

The alternator is responsible for charging the battery, and keeping your F150 running. If the alternator goes bad, the vehicle will run off of the power supply in the battery (which is there mostly for starting the vehicle and as a backup reserve). Once the battery has been depleted, the ignition system will no longer be able to fire properly.

Are there fuel pump problems in my truck?

Fuel Pump Problems: the Truck Is a 1990 Ford F-250, It Has the 460… The truck is a 1990 Ford F-250, it has the 460 motor and dual fuel tanks. The truck ran great before it was parked, I went out to start and move the truck. Well the fuel pumps don’t kick on (neither one). There is no power getting to the fuel pumps.

Why is my Ford F250 dual fuel tank problem?

This kit was issued by Ford to prevent two problems: fuel flowing from one tank into the other through the supply lines, and long cranking times due to fuel running back into the tanks after the vehicle was shut off. The pressure regulator was included as good practice. In my case, I had the two valves and the pressure regulator installed.

When does gas come out of the front tank?

For the 1996 Ford F-150 in 2004, one client stated that from the front tank fuel leaks and it occurs when both the tank fills up with fuel, and the rear tank use first. For 1996 Ford F-150, in 2002, one said, when he switches the front tank, it becomes to build pressure and gas come out from the rear shell.

Where do the fuel tanks go in a Ford F150?

The two lines that come out of the top of the tanks are directed to the charcoal box in front of the passenger front tire, then into the throttle body…emissions. Last edited by MONSTERPRE; 12-28-2010 at 05:25 PM.

Why did my 1989 F150 have a fuel problem?