Question about 2001 GMC Yukon

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When the heater is on there is a very strong natural gas kind of smell inside our 2005 Yukon Denali. It seems to come from the vents... and seems to be worse when slowing down or idling. Had the vehicle since June and didn't notice it with the AC on...

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  • dbugners Nov 17, 2009

    You don't smell it outside...it comes in very strong when you slow down/stop, but only when running the heater.

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My 2002 Denali has always done it with the heat on at idle. I run the heat on recirculate and the exhaust smell disappears 100%.

Posted on Dec 23, 2009

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Get that checked asap. Could be a number of things.

Posted on Dec 02, 2009

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Check under the hood and make sure there are no fuel lines leaking.You should be able to smell it.If you don`t know what to look for the take it to a garage or your dealer and have them look it over.It is not safe to drive if you smell fuel while driving.It could cause a fire under the hood.Good luck.

Posted on Nov 16, 2009

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