A/C Vacuum problem

Reply Subscribe

Thread Tools

Search this Thread

Sep 20, 2011 | 11:00 PM

01CaMMMaro

Thread Starter

TECH Fanatic

iTrader: (25)

Joined: Dec 2005

Posts: 1,206

Likes: 0

From: Denton, Texas

A/C Vacuum problem

I just put in a new motor and my defrost/floor vents works fine but nothing comes out of the dash vents. Also, the defrost/floor vents are working all the time, not just when I have floor or defrost selected (works on max, a/c, dash, etc settings on selection ****). Any help? Im assuming its one of those little vacuum hoses I dont have hooked up or something but I dont know which one is which.

Any help is much appreciated.

Thanks!

Sep 21, 2011 | 12:29 PM

mpdriscoll85

Registered User

Joined: Aug 2011

Posts: 3

Likes: 0

From: San Diego CA

Take a look below your battery at the vacuum tank, I just discovered my car was missing the tank altogether and the vacuum line that comes from the valve was dangling there.

Sep 21, 2011 | 01:57 PM

LS6427

Banned

iTrader: (2)

Joined: May 2008

Posts: 11,289

Likes: 13

From: South Florida

Quote:

Originally Posted by 01CaMMMaro

Go look near the PCM for a black plastic "T" fitting. If you're lucky you'll find that one of the hoses popped off. If you're unlucky then the little hose that goes from that "T" fitting fell off the vacuum port behind the intake. You have to feel for the port...best description is: Its right under the MAP sensor pointing towards the passengers side. Maybe 2 inches long. You have to slide that hose back onto that port. That is the line that allows the air to be directed up to the vents.

.

Sep 21, 2011 | 04:14 PM

01CaMMMaro

Thread Starter

TECH Fanatic

iTrader: (25)

Joined: Dec 2005

Posts: 1,206

Likes: 0

From: Denton, Texas

Ok thanks. I did the AIR delete so im assuming I messed something up there... There are a few hoses that im wondering if I have plugged in the right locations.

1. Where does the hose from the firewall by the PCM go to?
2. Where does the hose from the engine wiring harness right by the PCM go to?
3. Where does the hose from the passenger side valve cover go to?
4. I found a line behind the intake with two hoses coming from it, where do those 2 lines go to?
5. I also found a hose right by the horn, any idea where that goes?
6. I found the T fitting right by the PCM, what hoses plug into this and where do the other ends go to?

Thanks!
Matt