Stops running while driving

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Jul 11, 2022 | 08:32 AM

Glassman07

Thread Starter

4th Gear

Joined: Mar 2022

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Stops running while driving

Truck will be running good then it will suddenly stop running, started happening after fuel filter replacements and bled the fuel system

Jul 11, 2022 | 08:44 PM

DieselDenny

Cargo Master

Joined: Nov 2005

Posts: 2,766

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From: East Tawas, MI

I recommend you pull the upper cap. Inspect surgically the cap for a crack or defective o ring..

If the bowl is full, I would think the rail filter is good. (lower). Trace leaks should be noticeable when parked.

Make sure your using a few drops of Diesel to lube the o-ring before reinstalling. They crank down hard so be careful to fully seat it.

Did you KOEO for 20 seconds 5-6 times after the filter changes?

Denny

Jul 12, 2022 | 09:48 AM

Glassman07

Thread Starter

4th Gear

Joined: Mar 2022

Posts: 4

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I have already replaced those two items and didn't help and yes I did do the KOEO

Jul 12, 2022 | 02:15 PM

DieselDenny

Cargo Master

Joined: Nov 2005

Posts: 2,766

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From: East Tawas, MI

What's your fuel level and did you replace filters/cap with motorcraft or aftermarket?

Denny

Jul 15, 2022 | 09:31 AM

Glassman07

Thread Starter

4th Gear

Joined: Mar 2022

Posts: 4

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motorcraft parts

Jul 15, 2022 | 10:57 AM

73fan

Laughing Gas

Joined: Dec 2012

Posts: 1,035

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From: Alberta

Put a gauge in and monitor low pressure fuel when it dies.

Jul 16, 2022 | 08:45 AM

Fefanatic

Fleet Mechanic

Joined: Jan 2016

Posts: 1,804

Likes: 113

Start it and crack the upper filter cap until fuel runs out. I've had to do that on my cargo truck after fuel system service. It just doesn't bleed very well without human intervention. Also, make sure the filter cap on the lift pump at the frame is tight and not sucking air.