P0299 Code

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Sep 6, 2015 | 12:24 PM

J ballan

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Fleet Mechanic

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From: Saskatchewan

P0299 Code

Hello everyone, I'm having a little trouble with my 05 Excursion 6.0L and was wondering if somebody could shed a little light on it for me. We took off camping the other day pulling our 30' camper and the engine light came on pretty much as soon as we hit the highways. I checked my Dash boss and it came up as P0299 under boost condition. The truck never skipped a beat. The boost gauge never dropped and it seemed to have lots of power. Actually I've noticed too much boost while pulling. It's climbed up to 36psi before and was still climbing when I backed off the throttle. So could anybody help me out with this? I'm thinking the turbo is fine but not sure what to check next. Thanks for the help.

Sep 6, 2015 | 12:52 PM

WatsonR

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From: Virginia Beach VA

Caused by the turbo under boosting by more than 4psi and for longer than 5 seconds. Typically cured by a turbo cleaning to un stick the vanes.

Some say cleaning the EBP sensor, MAP sensor helps with boost, not sure if anybody came back and said that cured the P0299 code.

Sep 6, 2015 | 01:14 PM

J ballan

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Fleet Mechanic

Joined: Jan 2012

Posts: 1,668

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From: Saskatchewan

Quote:

Originally Posted by WatsonR

Ok cool. Thanks for the quick reply. How big of a job is it to clean the turbo vanes? I would assume the turbo needs to be removed.

Sep 6, 2015 | 01:16 PM

evan1242

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From: Marietta, GA

Sep 6, 2015 | 02:17 PM

69cj

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From: Middle Tn.

P0299 can be caused by over/under boost. If your hitting 36 psi that is way too high and could blow head gaskets if not corrected. 28 psi max on a stock engine. Cleaning may or may not correct it. On my 05 we had to replace the turbo. Even a new center section didn't correct the problem.

Sep 6, 2015 | 02:32 PM

KDAVID1

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From: TX

P0299 Code

I got that code along with a few others. Problem was bad ebp sensor. Verified it was the sensor and not turbo by unplugging the ebp and everything went back to normal.

Sep 6, 2015 | 07:33 PM

J ballan

Thread Starter

Fleet Mechanic

Joined: Jan 2012

Posts: 1,668

Likes: 13

From: Saskatchewan

Quote:

Originally Posted by 69cj

Ya the pucker factor was setting in when I seen that much boost. Looks like I'll pull the turbo and clean and inspect everything. Good time for a coolant flush/filter and EGR cooler delete. Thanks for the help.