mystery hose
Thread Starter
Member
Joined: Jan 2009
Posts: 108
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From: Alice, Tx
Car: 1991 Trans Am
Engine: sb chevy's.
Transmission: 700R4
Axle/Gears: 2.73
mystery hose
So i noticed my idle has been high lately and ive been looking for something to be causing this. i noticed the black little inlet between the runners is missing a hose. whats suppose to go there and can this be the solution to my problem? i can feel it sucking in air also
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iTrader: (1)
Joined: Aug 1999
Posts: 2,842
Likes: 6
From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Re: mystery hose
If it's on the driver side between the runners, there should be a vacuum line going to the PCV valve. And yes, with that unplugged your car will idle high.
Thread Starter
Member
Joined: Jan 2009
Posts: 108
Likes: 0
From: Alice, Tx
Car: 1991 Trans Am
Engine: sb chevy's.
Transmission: 700R4
Axle/Gears: 2.73
Re: mystery hose
How does the vacuum line go to the pcv valve? i see how the pcv valve has the hose running to the bottom intake. but the valve for the vacuum is just sitting on top of the plenum
Supreme Member
iTrader: (1)
Joined: Aug 1999
Posts: 2,842
Likes: 6
From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Re: mystery hose
This might help, it's a pic of my engine bay. You can see the PCV valve and vacuum line on the driver side valve cover:
Last edited by Ward; Oct 26, 2009 at 10:20 PM.
Thread Starter
Member
Joined: Jan 2009
Posts: 108
Likes: 0
From: Alice, Tx
Car: 1991 Trans Am
Engine: sb chevy's.
Transmission: 700R4
Axle/Gears: 2.73
Re: mystery hose
ok i see it now. thanks. but also the bolt between the runners has a little valve too. is it suppose to be there or is it suppose to be just a bolt? i can actually feel air being sucked from there too.
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