Vacuum Line Replacement Question
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Joined: Feb 2005
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Vacuum Line Replacement Question
I recently replaced the oil pressure sensor and now my A/C is coming out of the defroster and not blowing hard out of the front vents. From what I have read this is caused by a vacuum leak from one of the lines behind the intake manifold. My question is what parts am I going to need in order to fix the A/C? This is my only car and I want to make sure I have everything on hand before I take the manifold off. Do I just need to get some hose to replace the bad section or is it a specific part. I have read that some of the vacuum lines are typically hard plastic lines. Also there is a loud air hiss coming from that general area of the engine. I imagine the two are related but wanted to run that by yall as well. The engine runs fine just the A/C is not working right and the air sound. I currently have a 1999 corvette.
Sorry if I have been too vague and I appreciate the help.
Sorry if I have been too vague and I appreciate the help.
Last edited by BlackVette1993; Apr 16, 2008 at 10:41 AM. Reason: Clarify Car year
Drifting
Joined: May 2005
Posts: 1,590
Likes: 1
From: Littleton Colorado
Ya, I think its pretty easy to not have it connected. I put some hose over it to make it longer and easier to put on. I can't tell you the diameters, sorry. But, you only need a few inches, so go by the parts store and buy 6 inches of each size thats close...
The line its self is fairly robust, I doubt you damaged it or the port.
The line its self is fairly robust, I doubt you damaged it or the port.
Tech Contributor
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
I recently replaced the oil pressure sensor and now my A/C is coming out of the defroster and not blowing hard out of the front vents. From what I have read this is caused by a vacuum leak from one of the lines behind the intake manifold. My question is what parts am I going to need in order to fix the A/C? This is my only car and I want to make sure I have everything on hand before I take the manifold off. Do I just need to get some hose to replace the bad section or is it a specific part. I have read that some of the vacuum lines are typically hard plastic lines. Also there is a loud air hiss coming from that general area of the engine. I imagine the two are related but wanted to run that by yall as well. The engine runs fine just the A/C is not working right and the air sound. I currently have a 1999 corvette.
Sorry if I have been too vague and I appreciate the help.
Sorry if I have been too vague and I appreciate the help.
Tech Contributor
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
