Code P0299
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Senior User
Joined: Jan 2006
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From: New Glarus, Wisconsin
Code P0299
Truck is 06 F250, 78000 mi., Superchip on tow safe. First time I got this code, truck sat outside overnight got down to~15*F, started fine but was in hurry so did not let it "warm up" like I normally do(normally I let it idle until at least the auto high idle kicks in or a minute longer). Pulled out of drive, drove approx 1/2 mi. then had to pull out onto highway, didn't hammer it but had to get goin. Second time (today) I was pulling 20' flatbed trailer with 2 ATV's, wasn't even gettin on it. Got to were I was goin pulled codes and cleared. Truck ran fine on way home, got boost up to 22psi on one hill, on next hill boost at 26 psi and sounded like it was turbo-farting, so let off a little. 
Did search on code, I cleaned EGR when I did coolant flush and filter this winter, Should I try cleaning again or am I due for a new EGR??? Hopefully don't need new turbo and cleaning it sounds like to much for me to handle. Any help is greatly appreciated
Did search on code, I cleaned EGR when I did coolant flush and filter this winter, Should I try cleaning again or am I due for a new EGR??? Hopefully don't need new turbo and cleaning it sounds like to much for me to handle. Any help is greatly appreciated
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Joined: Jul 2004
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From: Ohio
When you step on it and the truck bucks or surges, blows black smoke, it usually is the EGR sticking. If you shut the truck off the EGR valve should go to the closed position, try unplugging it(Yes it will throw a code) and drive it to see how it does.
The code is under-boost, if the turbo has never been cleaned it could be time if the unison ring is sticking.
The code is under-boost, if the turbo has never been cleaned it could be time if the unison ring is sticking.
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Senior User
Joined: Jan 2006
Posts: 141
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From: New Glarus, Wisconsin
Well, truck didn't buck,surge, or blow black smoke when light was on, soooo I guess its time to clean turbo. Read the procedure in the tech folder, sounds like a pretty involved job. Any idea what that "turbo fart" sound was when I was at 26 psi boost???
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
p0299 can come from a buch of stuff but the enbd result is the same lack of mechanical boost.
egr. stuck turbo, ebp, ficm issues, fuel pressure, icp sensor faluts, map faults.
with the turbo flutter IMO your turbo may be sticking. check ebp, map and baro with the key on engine off first should all be 14.7 +/- .5 psi
egr. stuck turbo, ebp, ficm issues, fuel pressure, icp sensor faluts, map faults.
with the turbo flutter IMO your turbo may be sticking. check ebp, map and baro with the key on engine off first should all be 14.7 +/- .5 psi
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Senior User
Joined: Jan 2006
Posts: 141
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From: New Glarus, Wisconsin
So its been a little over a week since I posted this. Haven't checked anything, but keeping a close eye on everything. Since then I've pulled my job trailer which weighs ~5000#, and today pulled a 1980 Trans Am for a buddy. No codes and no "turbo fart" under pressure. Max boost was 28 psi going up a long hill, not even a hiccup. Could the code from before be from not letting the truck warm up?? I will clean turbo, but now gettin busy and depend on truck daily, pull trailers about 3-4 times a week.
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