56 F100 Stalling out

Reply Subscribe

Thread Tools

Search this Thread

Jul 10, 2014 | 09:49 PM

pagoda69

Thread Starter

Cross-Country

Joined: Jun 2012

Posts: 79

Likes: 5

From: cape cod/venice florida

56 F100 Stalling out

I am not sure if this is just a coincidence, but, my 56 F100 6 cylinder was running great until I filled the gas tank. Now it stalls out. I cleaned the carb, adjusted the idle and mixture screws, and if the choke is out the truck won't stall. I figure that this must be a gas or fuel system related problem. Any suggestions?

Jul 10, 2014 | 10:45 PM

Steve

More Turbo

Joined: Jun 2003

Posts: 687

Likes: 80

What was involved in the carb cleaning?

Jul 11, 2014 | 05:51 AM

The Horvaths

Posting Guru

Joined: Sep 2012

Posts: 1,314

Likes: 0

Check fuel flow rate. Disconnect fuel line from carb, hold so it will pump fuel into a jar, ignition off, crank vehicle.
See here: http://www.fordfe.info/FuelTS.html

Last edited by The Horvaths; Jul 11, 2014 at 05:58 AM. Reason: Link

Jul 11, 2014 | 07:09 AM

pagoda69

Thread Starter

Cross-Country

Joined: Jun 2012

Posts: 79

Likes: 5

From: cape cod/venice florida

Will do. Thanks.

Jul 23, 2014 | 06:04 PM

petemcl

Logistics Pro

Joined: Nov 2011

Posts: 4,685

Likes: 80

From: Northville, MI

Quote:

Originally Posted by pagoda69

Assuming that your fuel system is truly clean (suggest that you remove the top of the carb and check the float bowl) and assuming that you don't have an ignition problem - one thing that people miss is the gas cap. For our years of trucks it must be vented. If it is not you get a vacuum buildup in the tank as you use fuel which the fuel pump cannot overcome. It happens more frequently with a full tank than with a tank that is partially full due to the volume of air vs liquid.

Jul 23, 2014 | 07:34 PM

pagoda69

Thread Starter

Cross-Country

Joined: Jun 2012

Posts: 79

Likes: 5

From: cape cod/venice florida

Thanks Pete. Vapor lock is one of the possibilities, but never had the problem before this new tank of gas, and, it stalls out before it's even heated up, so I would imagine, that would eliminate a gas cap problem.

Jul 23, 2014 | 08:18 PM

teardropty

Posting Guru

Joined: May 2010

Posts: 1,057

Likes: 2

From: Kalamazoo MI

Are you running a Holley 1904 or ??? I had a similar issue on my 1904 and it wasn't filling the bowl properly. If you have a 1904, does it have a glass bowl? Is the fuel pump properly working?