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Old 02-13-2013, 06:17 PM   #1
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Rich exhaust smell in the cabin

I must have a leak somewhere. I have a rich, unburned, fuel/exhaust smell in the cabin of the car. Muffler and exhaust sound normal. Looking under the hood I can see a brownish haze coming up from the left hand side of the engine (as the driver views it.....right hand side as I see it with the hood lifted)

Head or manifold gasket?

2003. ZTS w/ 2.0. Dohc


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Old 02-14-2013, 12:05 AM   #2
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If you don't hear an exhaust leak then I doubt your smelling exhaust gasses. Perhaps oil burning off the exhaust from a valve cover leak?
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Old 02-14-2013, 06:02 AM   #3
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Does the smell get stronger with the heat or fan on?
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Old 02-15-2013, 08:24 PM   #4
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If you don't hear an exhaust leak then I doubt your smelling exhaust gasses. Perhaps oil burning off the exhaust from a valve cover leak?
That may be it. I can see an oily residue on the block. The smell is worse at low speed with only the interior vent fan on. I think the fumes build up under the hood at low speed and get sucked into the vent opening. The brown haze I'm seeing may be oil cooking off the block.
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Old 02-15-2013, 08:25 PM   #5
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Does the smell get stronger with the heat or fan on?
If the vent fan is on it gets stronger. With the heat or AC on I hardly notice it.
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Old 02-21-2013, 12:02 AM   #6
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I had it checked out when I had the oil changed today. It is the valve cover gasket. It's inexpensive to fix and I'll have it done this week.
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Old 02-21-2013, 07:13 AM   #7
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Good shit, Miroki!
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