Exhaust Leak Under Hood?

[belbers1]

Hey guys,
For some reason I have had intermittent times of strong exhaust smell in my cab. Usually at startup when I am warming the truck up. Sometimes you barely notice it, and other times it is strong enough to where it makes my eyes water. Any ideas? Can't find a leak anywhere, but then again I can't really get a good look from above or underneath/


Cheers

[southend]

Look for soot. Did you remove it lately?

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[belbers1]

Yeah, I looked for soot but didn't see any. Exhaust has not been removed recently

[southend]

There are flex sections on the y pipe, prone to cracking. Any loud noises lately?

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[belbers1]

There is a little bit of a "whir" sound when accelerating if you know what a mean. Not the throaty sound of the muffler or the whine of the turbo, but in between

[southend]

You may have a cracked flex joint, do you get on it hard from time to time, or putt around?

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