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Nov 15, 2010 | 02:55 PM

IEF350GUY

Thread Starter

New User

Joined: Nov 2010

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Limp Home Mode

I have a 2005 F-350 6.0 Diesel. When I have a heavy load and give it throttle (usually up a grade) the wrench light comes on and I lose most power. The manual says that this is "limp home mode".

My consumer code detector does not show any codes and the problem resets itself when I turn of the ignition and restart the engine.

I plan on going to the dealership, but before I get taken to the cleaners, can I get some feedback and opinions on what this could be?

Thanks,

Rob

Last edited by IEF350GUY; Nov 15, 2010 at 03:07 PM. Reason: Spelling error.

Nov 15, 2010 | 03:16 PM

bunklash

Elder User

Joined: May 2004

Posts: 812

Likes: 1

From: Northwest Florida

Welcome to the forum. You found a great place to learn about PSD's. And MOST

of the participants are very friendly and helpful. And the ones who aren't usually don't stay around very long.

Sorry I can't help you here, but you might have better luck down in the 6.0 forum.

Good luck!

Nov 15, 2010 | 04:18 PM

043506.06speed

Junior User

Joined: Feb 2010

Posts: 59

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I had something like that and the dealer said that the turbo was coked what ever that means.

Nov 19, 2010 | 04:47 AM

countryboy00001

Freshman User

Joined: Nov 2010

Posts: 27

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I don't know when you changed both fuel filters, but I would start their first before going up to the dealer. I don't know what kind of scanner you may have, however I do know the one I have allows me to scan the truck while running and also allows me to monitor certain things on the truck. If you are unable to see the history of the past codes then I would suggest to take the scanner with you and have it hooked up and force the truck to go into limp mode again while pulling and load and scan it to see what the code may be.

Nov 20, 2010 | 07:07 AM

043506.06speed

Junior User

Joined: Feb 2010

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countryboy makes a good point. I would make sure I had a clean air filter on there too.

Nov 20, 2010 | 09:01 AM

Hybris

Cargo Master

Joined: Aug 2009

Posts: 2,038

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From: Olathe

Quote:

Originally Posted by 043506.06speed

I had something like that and the dealer said that the turbo was coked what ever that means.

They mean that the variable vanes in the turbo are blocked by coke deposits similar to what you might see on a BBQ with all the black burnt stuff coating the grill.

Nov 20, 2010 | 09:32 AM

senix

Super Moderator

Joined: Aug 2008

Posts: 37,375

Likes: 1,861

From: Frederick, MD

in addition to the fuel filters...when was the last oil change. For the 6.0 it takes good oil to run those injectors.

Ford specific codes you need a ford code reader.

It could something as simple as an EGT sensor that is reading too high, when the motor cools EGT's are back to normal so it allows full power, just hard to say.