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?
Friday, July 5th, 2013 AT 5:41 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
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.
Was this
answer
helpful?
Yes
No
Friday, July 5th, 2013 AT 7:00 PM
Tiny
DERREKREYNOLDS
  • MEMBER
  • 2 POSTS
Thank You very much for your time.
Was this
answer
helpful?
Yes
No
Friday, July 5th, 2013 AT 8:21 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
I hope I helped. Let me know what you find.

Joe
Was this
answer
helpful?
Yes
No
Friday, July 5th, 2013 AT 8:32 PM

Please login or register to post a reply.

Related Engine Vacuum Leak Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Vacuum Leak
GUIDE
Vacuum Leak
An automotive engine heavily relies on a sealed vacuum system to help monitor and optimize the engine's performance, when this system fails and leaks emerge performance ...
VIEW MORE