When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
yea my boost pump is working I got under there and started checking all lines for any kinks or something out of place and it all looks good from what i can tell
If you know the boost pump is putting out 8 PSI in the rear than you may have a bad Selector Valve on the Frame.
Is the float or sending unit for gauge in this assembly or separate; my rear tank is filling the front tank also, but gauge shows empty all the time on front tank. the truck is 1993 F150 with 300 six engine and 5 speed 2wd and runs fine on both tanks other that the fuel transfer problem; I can smell strong gas odor when running off rear tank.
I have a 94 F150 5.8 that is leaking gas out of the front tank and crossfilling from the rear tank to the front. From what i gather i have a bad FDM in the front tank. The truck runs fine off of the front tank. Will the bad FDM cause the front tank to overfill and leak? Will the truck still run ok with a bad FDM?
my '96 F-150 I6 is doing the same thing. rear tank is filling the front, and it sometimes wont start on the front tanks. What is the fuel delivery module? Is that a fancy way of saying fuel pump assembly? Cant find anything online for FDM. Tips for replacement?
my '96 F-150 I6 is doing the same thing. rear tank is filling the front, and it sometimes wont start on the front tanks. What is the fuel delivery module? Is that a fancy way of saying fuel pump assembly? Cant find anything online for FDM. Tips for replacement?
If I can ask a question as part of this thread.... my 90 f-150 doesn't have voltage at either pump. Front tank is on the ground.... relay in engione compartment kicks on....what do i check next? I took the tank switch out but I don't know the pins to check voltage there. Where do i go from here?
If I can ask a question as part of this thread.... my 90 f-150 doesn't have voltage at either pump. Front tank is on the ground.... relay in engione compartment kicks on....what do i check next? I took the tank switch out but I don't know the pins to check voltage there. Where do i go from here?
What relay in engine compartment kicks on?
EEC Power Relay or Fuel Pump relay?