Intake Manifold HVAC
Thread Starter
TECH Senior Member
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From: Jacksonville, FL
Intake Manifold HVAC I broke the HVAC vaccum line that goes into the back of the intake manifold. Nothing will blow out of the top vents. Everything comes out of the bottom. Now is this a direct correlation between the two, or is it something else. If it is, which I'm sure it is, what is part number and how easy is it to fix it? Thanks in advance.
TECH Veteran
Joined: Dec 2004
Posts: 4,012
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From: Beaumont, TX
Yep, sounds like vacuum line 
https://ls1tech.com/forums/general-maintenance-repairs/359884-ac-vents-f-ed-up.html
I think 12186372 might be the part number - Heater & AC Control Vacuum Tank Hose (98-02). Not sure, though.
https://ls1tech.com/forums/general-maintenance-repairs/359884-ac-vents-f-ed-up.htmlI think 12186372 might be the part number - Heater & AC Control Vacuum Tank Hose (98-02). Not sure, though.
Thread Starter
TECH Senior Member
iTrader: (21)
Joined: Jun 2004
Posts: 6,697
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From: Jacksonville, FL
Well I'm fine then. I already had a good tune in my car and this recent tune was only a WOT tune since I had already had the driveability issues worked out. I fixed the vaccum leak (air works now) and disconnected the battery for about 30 minutes or so. Idle relearn and off to driving. Seems to drive a little bit better. Will know once I put a few miles on it though. It always drives a little rough after the pcm has been reset.
