1990 F150 with dual-tank problems - F150online Forums

Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Log In 

1990 F150 with dual-tank problems

Thread Tools Search this Thread
Old 05-27-2006, 09:16 PM
Join Date: Aug 2005
Location: Maine
Vehicle: 1987 Ford F150
Posts: 96
davidaaron236 david_aaron236
Send a message via Yahoo to david_aaron236
Angry 1990 F150 with dual-tank problems

I have a 1990 F150 4.9l 5-speed and it has a problem that I have read online about, where fuel goes from one gas tank into the other. In my case it goes from the front tank to the rear one. This wouldn't really be a problem for me, except that the fuel pump in the rear tank doesnt work... I had read that this was a recall, so I called my local Ford garage, and they tell me that there are no recalls that are fuel-related for my truck. I couldnt believe it! I just wanted to know if there is actually a recall for this problem.. Any help at all would be greatly appreciated!!
Reply With Quote
Old 05-28-2006, 12:02 AM
Technical Article Contributor
Join Date: May 2004
Location: Georgia on my mind...
Vehicle: 2004 Ford F150
Posts: 6,509
Send a message via AIM to Quintin Send a message via Yahoo to Quintin
There is a recall, but I believe it's expired. More than likely even if it didn't expire, the parts replaced probably wouldn't really help. I've replaced a lot of fuel pumps on those trucks because the check valve in the pump fails, allowing fuel to bypass between tanks.

!@#$ the language filter.
Reply With Quote
Old 05-28-2006, 12:47 AM
Senior Member
Join Date: Nov 2003
Vehicle: 2003 ford f150
Posts: 144
The recall is over, it ran 12 years or 150,000 miles. I've had a few vehicles that came in do this and I install the check valves to correct the problem. The check valve goes on the fuel pump outlet to stop fuel from flowing back through the pump. The front tank is easy to get to with out lowering the tank. The rear tank needs to come down a little or loosen the box and lift it up in the rear to get to pump. Also there was an aftermarket tool that worked pretty good, too. The part number was F4pz-9155-J.
Good luck,
Reply With Quote


Similar Threads
Thread Thread Starter Forum Replies Last Post
2015 F150 Problems Vanwilder01 2015 F-150 15 08-01-2015 05:45 PM
1978 f150 4x4 starting problems Sassynome07 Pre-1997 Models 2 08-01-2015 05:16 AM
Right rear turn signal and brake light not working rivercity Electrical Systems 2 07-20-2015 10:45 PM
power lock problem knownspace 1997 - 2003 F-150 5 07-19-2015 12:58 PM
power lock problem knownspace Introduction Forum 0 07-14-2015 07:17 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

All times are GMT -4. The time now is 04:44 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company