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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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08-07-2012, 10:12 PM | #1 |
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Exhaust Leak?
Car is bone stock with ~1500 miles. Smells like it has an exhaust leak, only during first startup of the day. I can't smell anything once the car is warm. Anybody else notice this?
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08-08-2012, 04:37 PM | #2 |
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Damages? If there's an issue, the dealer will be taking care of it under warranty.
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08-08-2012, 04:42 PM | #3 |
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An exhaust leak would be very audible, and sounds like a "ticking" noise. You can't really smell an exhaust leak. If you're smelling fuel, that's normal for a cold start as all engines run rich until they reach operating temperature due to poor fuel atomization in the intake manifold while cold.
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08-08-2012, 07:21 PM | #4 |
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It smells like that because the cat has not warmed up yet. Once the cat has enough heat in it it burns up the unused fuel. That is why you dont smell it once warmed up.
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08-08-2012, 10:30 PM | #5 |
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Thanks for the info. Just wondering since I don't recall having that issue with my previous cars. Does this go away as the cat/exhaust break in?
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08-09-2012, 12:03 AM | #6 |
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yeah J.T. nailed it, all of my cars when cold seem to smell of raw fuel if the wind hits you just right, but once warmed up you should not get this smell at all.
It is just that in order for the cat to burn off the excess fuel, it must be fully warmed up, which is also why your car will run pig rich during warm up, to help get everything up to operating temp Thanks, Rick |
08-09-2012, 12:59 PM | #7 |
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Great, thanks for the info guys.
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