Crank no start
Thread Starter
|
New User
Joined: Apr 2016
Posts: 19
Likes: 0
Crank no start
Just wondering if anyone had any suggestions. I have a 06 6.0 f-250 it cranks but won't start untill I pull the secondary fuel filter cap off and seems to vent air in the system out then it starts right up. I can't figure out where it's sucking air. Here's my question I changed the fuel sending unit in the tank a few weeks ago and had a hard time seating the lid on top of fuel tank. If it is not completely seated will this cause air in the fuel system and give me the headache I've been dealing with?
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
You may have fudged the lower filter O-ring on the HFCM, frame mounted filter. You are sucking air at that point. Check that out. A loose connection between the pump and tank would also introduce air. I would look over the previous tank repair since that is the starting point.
Thread Starter
|
New User
Joined: Apr 2016
Posts: 19
Likes: 0
Also I forgot to mention that once I get it started it runs perfect. Also after I turn it off the next time I crank it it's a 50/50 shot if it will start. Seems like the longer it sits the lees chance I have it will start. Also it parks on an incline don't know if that matters or not.
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
Trending Topics
Thread Starter
|
New User
Joined: Apr 2016
Posts: 19
Likes: 0
This happened only once before the sending unit c/o, but that time it was my battery's so I changed them and the alternator too. This definitely seems to be fuel related. Could I maybe have a weak fuel pump?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
New User
Joined: Apr 2016
Posts: 19
Likes: 0
Update, I changed both fuel filter housing caps with new o rings and checked all fuel lines for leaks couldn't find anything. So far so good with start ups I'll keep my fingers crossed and see what happens.
Token Redneck
Joined: Jun 2007
Posts: 9,335
Likes: 343
From: Breckenridge, TX
Is something blocking the air bleed hole in the secondary filter?
Have you done the blue spring yet? The parts kit comes with a new regulator housing gasket, and a new air bleed insert.
This hole:
Have you done the blue spring yet? The parts kit comes with a new regulator housing gasket, and a new air bleed insert.
This hole:
Token Redneck
Joined: Jun 2007
Posts: 9,335
Likes: 343
From: Breckenridge, TX
This part in this location:
(thanks for the pics Rusty)
https://www.ford-trucks.com/forums/1...ue-spring.html
(thanks for the pics Rusty)
https://www.ford-trucks.com/forums/1...ue-spring.html
Token Redneck
Joined: Jun 2007
Posts: 9,335
Likes: 343
From: Breckenridge, TX
With a fuel pressure gauge you can see how long it takes to bleed air out of the system after it's been opened, usually 15-30 seconds (1-2 key cycles) depending on how much air is in the system:
https://www.ford-trucks.com/forums/1...l#post12858548
https://www.ford-trucks.com/forums/1...l#post12858548