Mechanics

VERY LARGE VACUUM LEAK

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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Derrekreynolds
July 5, 2013.




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.

Thank You very much for your time.
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Tiny
Derrekreynolds
Jul 5, 2013.
I hope I helped. Let me know what you find.

Joe


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