Truck problems
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
2X. Sounds like it is sucking air. Losing the pumps "draw". I had a loose old rubber hose back by my tank and the fuel pump coudn't pull any gas out of the tank. I found it by taking hose off mechanical pump and blowing pressure back in the fuel line.
Thread Starter
|
Logistics Pro
Joined: Jan 2011
Posts: 4,762
Likes: 54
From: Antelope Valley ,CA
8pm last night ambient temp still in 90s , problem still there .
I am going to dig into it on Saturday
I am going to dig into it on Saturday
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
I'm betting on the stock fuel pump not having the head pressure to pull the fuel up to your carb. The stock tank behind the seat helped the old style pump with gravity feed. The mustang tank is not only way back there, it's way below the carb so the pump is working too hard. Hio Silver is correct. Mount the electric pump as close to the tank as possible. They don't suck very well but they'll push the fuel 10 feet in the air!
Have you tried to run the truck off a can of gas right from pump? Then take line off tank and draw from a can at that point. See where the issue comes from.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
2X Bobby. I also don't think it the location of the tank but something was changed or accidentally over-looked during installation. We've all done it. It ran before.
Thread Starter
|
Logistics Pro
Joined: Jan 2011
Posts: 4,762
Likes: 54
From: Antelope Valley ,CA
gas can on my list to try Saturday , that will narrow issue down fast .
does it matter that Autozone gave me 3/8 fuel injector hose instead of regular 3/8 fuel hose ? it feels slicker than old rubber hose , maybe that's where i am sucking air in ?
does it matter that Autozone gave me 3/8 fuel injector hose instead of regular 3/8 fuel hose ? it feels slicker than old rubber hose , maybe that's where i am sucking air in ?
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Shouldn't. Fuel injector hose will just hold more pressure than regular.