Loud bang then the smell of bad eggs or fish?
Driving on the fwy in my 2007 Jetta sedan and I hear a loud bang (like a tire popping) and then the smell of rotten eggs or fish, car seems to run fine, however check engine light came on (diagnostic said "a leak" most likely loose gas cap, and exhaust light also came on and went off? Any thoughts out there?
The bang could have been from the catalytic convertors, Hydrogen sulfide (the rotten egg smell) builds up from the sulfur in the fuel you are using in the converter. The converter might be plugged up. Unburnt fuel is one of the main culprits. Have the fuel system checked, like the regulator and or the injectors.
Search Volkswagen Jetta Questions
Volkswagen Jetta Experts
Related Models For Sale
Used Cars For Sale