Loud bang then the smell of bad eggs or fish?

Asked by May 23, 2017 at 07:54 PM about the 2007 Volkswagen Jetta

Question type: Maintenance & Repair

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?

1 Answer

254,575

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.

1 of 1 people found this helpful.

Your Answer

Volkswagen Jetta Experts

  • #1
    Goodwrench707
    Reputation
    2,430
  • #2
    Deathjam4
    Reputation
    1,930
  • #3
    Scott Sr.
    Reputation
    1,470
View All

Related Models For Sale

Used Volkswagen Passat
28 Great Deals out of 551 listings starting at $2,500
Used Honda Civic
303 Great Deals out of 3,475 listings starting at $995
Used Volkswagen GTI
35 Great Deals out of 192 listings starting at $2,988
Used Honda Accord
76 Great Deals out of 1,059 listings starting at $1,200
Used Volkswagen Golf
61 Great Deals out of 856 listings starting at $567
Used BMW 3 Series
187 Great Deals out of 1,794 listings starting at $2,499
Used Toyota Corolla
224 Great Deals out of 3,792 listings starting at $2,245
Used Audi A4
53 Great Deals out of 643 listings starting at $1,895
Used Toyota Camry
63 Great Deals out of 1,964 listings starting at $750
Used Nissan Altima
79 Great Deals out of 1,366 listings starting at $2,500
Used Mazda MAZDA3
195 Great Deals out of 2,673 listings starting at $880
Used Ford Focus
143 Great Deals out of 2,718 listings starting at $1,100
Used Volkswagen Beetle
29 Great Deals out of 304 listings starting at $1,495

Used Cars For Sale

2017 Volkswagen Jetta For Sale
4 Great Deals out of 609 listings starting at $18,119
2016 Volkswagen Jetta For Sale
5 Great Deals out of 157 listings starting at $13,999
2015 Volkswagen Jetta For Sale
28 Great Deals out of 266 listings starting at $7,895
2014 Volkswagen Jetta For Sale
38 Great Deals out of 257 listings starting at $7,955
2013 Volkswagen Jetta For Sale
29 Great Deals out of 534 listings starting at $5,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.