1990 Ford F150 Logo

Related Topics:

A
Anonymous Posted on Aug 12, 2017

1990 f150 2wd 4.9 truck runs decent then acts like it's running out of fuel. switch tanks and truck runs fine for a while but then act like it runs out of fuel. switch back to original tank and good to go. don't need to stay on either tank for any length of time. switch after a couple of seconds and the truck smooth's out. already replaced the tank switch. any ideas?? only code is 33

  • Ty Johnson Feb 15, 2019

    I had a similar issue ended up being the control module or computer

×

1 Answer

Mike Duffy

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Ford Master 1,131 Answers
  • Posted on Feb 15, 2019
Mike Duffy
Ford Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Dec 12, 2018
Answers
1131
Questions
2
Helped
288804
Points
4355

I think you need to replace the front fuel pump it has a bad check valve in it. Check with Ford there is a tech bulletin written for these and they have a modified part for repair. I hope this helps, Take care. If you have more questions for me use testimonial and it will show up in my email. Thanks

5 Related Answers

A

Anonymous

  • Posted on Oct 08, 2008

SOURCE: !999 Ford Ranger

It could be the mass air flow sensor. Its mounted to the side of the air cleaner. Just unplug the electrical connection to bypass the unit. If this is the problem the vehicle should run smoothly.

Ad

Anonymous

  • 749 Answers
  • Posted on Oct 29, 2008

SOURCE: 1990 f250 fuel system

This is not a solution , just a clarification. Did you change the fuel filter and put it back on in the correct direction or is the fuel line beyond the pump producing gas?

Anonymous

  • 11896 Answers
  • Posted on Jan 29, 2009

SOURCE: 1990 Ford f250 Diesel dies at idle.

could be bad glow plugs or plug heaters, faulty wiring to the coil, vacuum leak.

Anonymous

  • 4 Answers
  • Posted on Apr 09, 2009

SOURCE: trucks runs on back tank, won't run on front tank

most likley the fuel pump is bad in front tank

Anonymous

  • 45 Answers
  • Posted on Apr 29, 2009

SOURCE: 90 f150. when i switch to the rear fuel take the truck runs for

sounds like the diverter valve or the switch is defective

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Vapor locks

It could be a vapor lock but not likely. Since the introduction of fuel injection vapor lock has been eliminated.
You need to figure out if you are loosing fuel pressure or spark when it will not start back up. Could be a fuel pump relay or ignition module among other things. Even a problem with the vent for the gas tank.
5helpful
4answers

Truck acts like it is running out of gas? Replaced fuel filter. Ran fine for awhile but now still acts like it is starving for fuel.

my '93 f-250 (4.9L) stopped running while driving, now it acts like it isn't getting any fuel. Tried switching tanks, but still does the same. What would be the problem.
4helpful
1answer

When the 1990 Ford van is switched to the front gas tank it will run for a few miles and then acts like it is out of gas. When I switch to the rear tank no problems.

When you switch tanks can you see what the correct amount of gas is in the that forward tank? Can you verify that the fuel-pump inside the forward tank is coming on? A common problem for fords are the selector switch units. But you want to make sure you narrow it down enough so you don't buy the wrong part. Let me know how it is going.
2helpful
2answers

1990 honda accord ex does not start when hot?

Sounds like the pgmfi relay is going out. This is a common problem with these cars. They get hot and dont want to work, they cool off and everything is ok.
0helpful
1answer

1990 f 350 7.3 liter runs fine until fuel tank

install clear plastin line in the return from the injector pump, any air in the fuel means trouble, somewhere in the fuel system its drawing air , usually neat the tanks, but not leaking enough for fuel to leak
1helpful
1answer

Toy starts runs 10 seconds and stops change fuel filter now wont

When you tur the key forward do you hear the fuel pump running? You should hear a low hum for about 20 seconds near the gas tank and then it stops. If you hear this your pump is good. If it keeps running or you can't hear it at all it's bad or the main fuel pump fuse is blown.
0helpful
1answer

Ford1504x4 1990 5.o my truck runs like it is lossing power. i put bosh plugs and excel wires with cap and rotor. egr check out ok. it sometimes POPS when i step on the gas and acts like it its running out...

Check fuel pressure at fuel rail. Must have 45-50 PSI. There is also a fuel pump on the frame before the engine and after the fuel tanks. POPING occurs with lean fuel mixture or crossed plug wires.
0helpful
1answer

1990 Ford f250 Diesel dies at idle.

could be bad glow plugs or plug heaters, faulty wiring to the coil, vacuum leak.
Not finding what you are looking for?

141 views

Ask a Question

Usually answered in minutes!

Top Ford Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...