7.3 DIT fuel problem - Ford Powerstroke Diesel Forum
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Old 07-13-2010, 05:07 PM
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7.3 DIT fuel problem

Had a customer bring in an '01 F-550 with a 7.3, said it would lose power. Test drove it, sure enough, felt like it was running out of fuel under load.

Put a test gauge on the fuel filter housing. Started it up, had 45 psi pressure.

7.3 DIT fuel problem-7.3-fuel-problem-001.jpg

Stuck the hose and gauge out of the backside of the hood and shut the hood so I could view gauge while driving.

7.3 DIT fuel problem-7.3-fuel-problem-002.jpg

Hit the pavement, Holy Crap! Didn't even rev out second gear going downhill and pressure dropped to zeeeeero!

7.3 DIT fuel problem-7.3-fuel-problem-003.jpg

Started running crappy, managed to limp back to yard, stopped at bottom gate and waited, it recovered pressure in a few minutes.

7.3 DIT fuel problem-7.3-fuel-problem-006.jpg

Could be pump, but doubt it. Sure sign there's a fuel supply restriction...in the tank. Get the pickup assy out of tank, there's where the
problem is going to be.

7.3 DIT fuel problem-7.3-fuel-problem-007.jpg
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Old 07-13-2010, 05:09 PM
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Took the cartridge apart, sure enough, the twin stainers were clogged tighter than a Kentucky coal country motel shower drain.

7.3 DIT fuel problem-7.3-fuel-problem-009.jpg

Here's one strainer cleaned out and its twin brother looking all unhappy. Cleaned out the fuel tank, sorted out the pick up, she
purrs like a kitten again.

7.3 DIT fuel problem-7.3-fuel-problem-010.jpg
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Old 07-23-2010, 11:02 PM
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did the engine light come on on this truck
mine has codes in it 1316 somehing a bout circuit injector thing
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Old 08-18-2010, 08:11 PM
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Good info

Thanks that is very good info I have a truck at the shop I am doing the same thing to.
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