Loss of Power - New Fuel Tank? - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 04-03-2012, 01:47 PM   #1 (permalink)
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Loss of Power - New Fuel Tank?

Moderator: If there is a better topic forum for this please move it, thank you.

OK, I have a 2002 F350 PSD with 108000 miles. I'm the original owner.
Last month it developed an intermittent loss of power. It was more likely to happen when the truck was under load (pulling a 5th wheel RV). The best way to explain it was like I had gotten a tankful of bad diesel. I pretty much ran that tank out, filled up, added a can of 'SeaFoam' and changed the fuel filter.

Didn't solve the problem. Since that time I put about 2500 miles on the truck and have had the problem several times since then. I have also replaced the CPS and still not the solution.

Today I took the truck to the dealer. He checked codes and found a 'low fuel pressure' code. He checked the fuel pump, oil pump, etc and all checked OK.

His diagnosis is related to the low-sulphur diesel fuel now in use. He says there are chemicals in that fuel which can attack the lining of the fuel tank causing it to flake off. That debris then clogs the in-tank filters to the fuel pump. The only way to be sure is to drop the tank and look inside. He said he's seen this before in older diesels but this 2002 is the 'newest' one he's seen which looks to have this problem.

If there is debris in the tank he sees 2 options:

1. clean it out the best possible and fix the problem temporarily or
2. replace the fule tank ($1200 for the tank) plus 400 labor. He said the new fuel tanks have a different lining which will not flake off.

So I was looking for any experience anyone may have with this issue. Have you heard about this being a possibility? Any suggestions about other possible causes of the problem.

Thanks.
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Old 04-03-2012, 04:45 PM   #2 (permalink)
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I'm pretty sure you have a plastic fuel tank. The delaminating issue was with the older trucks that had metal tanks. I think the vans had metal tanks as well. Slide under yours and tap on it. If its plastic, your dealer is full of something other than brains.

That doesn't mean you don't have clogged screens in the tank. That happens from the debris that gets pumped in with the fuel. You can do the Hutch mod yourself and save $1500 Welcome to guzzle's In-tank Hutch Mod Web Page
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Old 04-03-2012, 06:56 PM   #3 (permalink)
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Quote:
Originally Posted by mdwpm View Post
Today I took the truck to the dealer. He checked codes and found a 'low fuel pressure' code. He checked the fuel pump, oil pump, etc and all checked OK.
Where the heck did he find a 'low fuel pressure' code on a 2002 Powerstroke? It's real tough, because there isn't a fuel pressure sensor that reports to the PCM.

But what RT is telling you is on the right track as far as the fuel system.

You might get back with the dealer and ask exactly what code he got. Maybe it was a HP oil system code. With that info, we could point you in the direction to go.
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Old 04-06-2012, 11:46 AM   #4 (permalink)
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Thanks - yep plastic tank. Was told there is a lining in the tank that is eroded by the low sulphur fuel......

Thanks for the link. I should be able to get the tank off and take a look see.

Quote:
Originally Posted by RT View Post
I'm pretty sure you have a plastic fuel tank........You can do the Hutch mod yourself and save $1500 Welcome to guzzle's In-tank Hutch Mod Web Page
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Old 04-25-2012, 03:54 PM   #5 (permalink)
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Thanks to RT anf klhansen.

I finished up the 'Hutch Mod' and all seems to be good. The two mesh filters in the in-tank filter/mixing chamber were completely clogged. Holding the filters up to a bright light I couldn't see anything thru them. No wonder I was experiencing restricted fuel flow symptoms.

Anyway thanks again guys, you're great.

Jim
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