Exhaust Smell In Cab - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties 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 6.0L Power Stroke engine.

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Old 10-29-2009, 12:03 PM   #1 (permalink)
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Exhaust Smell In Cab

When Idleing With The Ac On Normal Or Defrost On I Have A Exhaust Smell In The Cab When The Ac Is Pulling Fresh Air Into The Cab Where Should Look For A Leak I Dont See Any Soot On The Pipes Or Hear A Leak
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Old 10-29-2009, 12:16 PM   #2 (permalink)
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Probably a cracked y-pipe.
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Old 10-29-2009, 12:53 PM   #3 (permalink)
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the y pipe tends to crack in the corrugated part. concentrate on that area. another common spot to leak is where the y pipe mates to the turbo
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Old 10-29-2009, 12:54 PM   #4 (permalink)
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It could also be a leak between the exhaust manifolds and the block since there isn't a gasket between them from the factory. Look for soot around the flanges at each cylinder. Mine were leaking and the dealer's shop installed gaskets per a TSB.
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Old 10-29-2009, 01:47 PM   #5 (permalink)
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Thanks Guys
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2005 F350 XL REGULAR CAB 6.0 11 FOOT SERVICE BOX DRW STOCK 212,347 ON THE CLOCK
1997 34.5 FLEETWOOD AVION 5TH WHEEL
2003 F350 XLT CREW CAB 7.3 STOCK DRW 85,000 on the clock
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Old 10-29-2009, 04:38 PM   #6 (permalink)
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I don't want to hijack this thread, but I've had the same trouble since I bought mine in 2004.....It was never really bad enough that I considered taking it in for service....

I had the turbo replaced in 2008 at the direction of the dealer (warranty covered) and after about 250 miles, began to notice puffs of soot from under the hood when sitting still, at idle and burping the throttle... And, the smell in the cab is BAD now, much worse than before! I've run the thing for over 10k miles this way, and other than smell, soot deposits (drivers side, below exaust manafold) and occasional sluggish acceleration it runs fine....(yeah, that sounds rediculous!)

I thought maybe the dealer didn't install the Y-pipe correctly when installing the new turbo? How hard is it to replace the Y-pipe?
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Old 10-29-2009, 05:10 PM   #7 (permalink)
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not too bad. there are 4 bolts that hold it to the manifolds, 2 on each side. head is 10mm and nut is 13mm. replace these when you remove them. your gonnaneed to pull the turbo to get the y pipe out. then there is a heat sheild that bolts to the head and the back of the hpop cover then just pull the pipes out.
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Old 10-29-2009, 05:17 PM   #8 (permalink)
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Thanks for the speedy reply! Ballpark on what the dealer might charge?
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Old 10-29-2009, 10:23 PM   #9 (permalink)
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Quote:
Originally Posted by timbo2 View Post
When Idleing With The Ac On Normal Or Defrost On I Have A Exhaust Smell In The Cab When The Ac Is Pulling Fresh Air Into The Cab Where Should Look For A Leak I Dont See Any Soot On The Pipes Or Hear A Leak
No offence, and off topic, but damn!! why do you capitalize every word? Its hard to read.
Isnt it hard to type that way?
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