1999 Porsche 911 gas cap

1999 PORSCHE 911
89,000 MILES • 4 CYL • 2WD • MANUAL
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FRED81342
  • MEMBER
  • 1 POST
I need to replace my gas cap. Should it be vented or non-vented?
Jun 20, 2014 at 4:46 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
go to an autoparts and give the correct model of your car they will give you the correct one
Jun 21, 2014 at 12:02 AM
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ROBS97
  • MEMBER
  • 1 POST
I have the same question. I went to the auto parts store and they offered me a vented and non-vented gas cap for my 97 silverado 5.0. What does chevrolet require, vented or non-vented?
Oct 16, 2014 at 6:28 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
it shold be non vented for emiisons but an auto parts will give you tthe correct one just make sure to tighten 3clicks after fueling up
Oct 17, 2014 at 5:46 AM
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