1991 Chevrolet Blazer Very large vacuum leak

Tiny
DERREKREYNOLDS
  • MEMBER
  • 1991 CHEVROLET BLAZER
  • 253,497 MILES
While under my hood Blazer at idle I can not see any vacuum hoses off but I can here a large vacuum leak and when I take the top of the air filter housing off it gets louder. Could it be my T B I gasket, and if so how do I check it and also how hard are they to replace?
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Friday, July 5th, 2013 AT 5:41 PM

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Tiny
JACOBANDNICKOLAS
  • CERTIFIED MECHANIC
Yes it could be the gasket. As far as checking it, make sure it isn't broken or damaged. It is about a three dollar part. If that isn't the issue, check to make sure there are no leaks around the intake manifold.
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Friday, July 5th, 2013 AT 7:00 PM
Tiny
DERREKREYNOLDS
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Thank You very much for your time.
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Friday, July 5th, 2013 AT 8:21 PM
Tiny
JACOBANDNICKOLAS
  • CERTIFIED MECHANIC
I hope I helped. Let me know what you find.

Joe
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Friday, July 5th, 2013 AT 8:32 PM

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