If your system is manual HVAC, then it is not equipped with recirculating /fresh air features. Under such circumstances, you would have to check for air leaks from areas such as the firewall, look out for dislodged or broken/torn plugs etc.
If fuel is coming out of the exhaust, it means excessive fuel is getting to the cylinders or at least one cylinder is not firing correctly.
Possible causes are :
1. Bad spark plugs or related parts.
3. Faulty injector.
But I believe it is fluids rather than gas. Fluids would drip off as combustion from the engine would produce water vapor and after a while this would accumulate to be discharged from the exhust as fluids.
Is the Check Engine Light indicating?
Sunday, July 25th, 2010 AT 2:46 PM