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Old 12-22-2012, 04:59 PM
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Diesel fumes in cab

Recently, I've been smelling strong diesel fumes in the cab in my '01 350 288k miles. I run it with the air vents open and it may be coming through there.

Looking under the hood I don't see any leaks and my fuel mileage doesn't appear to have decreased.

I began noticing it after starting and running it to warm up on cold mornings.
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Old 12-22-2012, 05:28 PM
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Does your truck have the CCV mod?
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Old 12-22-2012, 05:34 PM
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I say up pipe gaskets leaking.
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Old 12-22-2012, 05:39 PM
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Could be exhaust manifolds. Look for soot...

Sent from my SPH-D710 using AutoGuide.Com Free App
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Old 12-22-2012, 05:42 PM
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No, no CCV mod, just the DIY air filter, zoodad and flow thru Walker muffler.

It smells like raw fuel and not burned exhaust. The exhaust manifold or up pipe gasket makes sense as it's original.
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Old 12-22-2012, 05:47 PM
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Either one of those leaking will cause a raw fuel type smell.
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Old 12-22-2012, 09:07 PM
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Stood up top yet and shined a light in the valley to visually look for fuel ? Mine has just started leaking , no ground drips yet but am seeing it in thr valley -ordered a full kit from Guzzle's today
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Old 12-22-2012, 09:31 PM
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Mine started leaking fuel when the weather turned cold, I just replaced all the orings and seals on the lines and fuel bowl an hour ago. The rear line under the downpipe was leaking.
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Old 12-22-2012, 10:53 PM
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So when you say you ordered a "full kit from Guzzle's", a full kit of what?

And yeah, I believe it's temperature related, from going from extreme heats of 110 degree summers to below freezing cold snaps like we recently had here in Central Texas as I just noticed it the last few mornings.
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Old 12-23-2012, 06:49 AM
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Quote:
Originally Posted by 7.three View Post
So when you say you ordered a "full kit from Guzzle's", a full kit of what?

And yeah, I believe it's temperature related, from going from extreme heats of 110 degree summers to below freezing cold snaps like we recently had here in Central Texas as I just noticed it the last few mornings.
I got the full fuel bowl oring kit (. http://www.dieselorings.com/1999-200...1999-2003.html ) has all the O-rings , upgraded the drain valve ones to the better of the three offered. I cannot see my leak , have watched it while running. So hopefully getting the full kit will eliminate the problem..... Just trying to convince myself to go ahead and do an Adrenaline HPOP as long as I'm leaned over the top.

Last edited by scagle1; 12-23-2012 at 06:54 AM.
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