Easy one vacuum line behind the intake manifold
Thread Starter
Burning Brakes
Joined: Apr 2002
Posts: 1,083
Likes: 0
From: Spanish Fork Utah
Easy one vacuum line behind the intake manifold
I'm going to help my friend try to diagnose his '01 on why his AC vents don't swing.
I've read numerous posts on the search function that said to pull fuse 27 (for an actuator reset), look for vacuum lines under the battery that are corroded and check the T-fitted vacuum line on the back side of the intake manifold.
My question: For anyone that has been back there, how hard is it to get to the vacuum lines on the back side of the intake manifold? Is it as simple as removing the manifold covers, or will I actually need to move the manifold itself forward? The guy lives a little ways from me and I need to tell him how much time to plan on.
Thanks!
I've read numerous posts on the search function that said to pull fuse 27 (for an actuator reset), look for vacuum lines under the battery that are corroded and check the T-fitted vacuum line on the back side of the intake manifold.
My question: For anyone that has been back there, how hard is it to get to the vacuum lines on the back side of the intake manifold? Is it as simple as removing the manifold covers, or will I actually need to move the manifold itself forward? The guy lives a little ways from me and I need to tell him how much time to plan on.
Thanks!
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Small hands may be able to get it back on without removing the intake. Remove the fuel rail cover and look in with a flashlight and mirror from the passenger's side, you should be able to see it. It will sit right under the MAP sensor. Pointing at elbow with ruler:
Last edited by vettenuts; Nov 13, 2013 at 05:00 PM.
Pro
Joined: Oct 2006
Posts: 734
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From: Bryan Texas
My line on the back of the intake popped off as I was putting the intake on and didn't know it until I cranked it up and heard a loud hissing sound from back there. I knew immediately what it was. It was cold and kinda rainy, so I didn't want to pull the intake back off.. I moved the big air tube so I could get my hand back there and after a little while figured out how to get the hose on the intake. I have pretty small hands though.
An easy way to see if you are getting vacuum inside the car is to pull footwell cover from the bottom of the passenger side dash, there are 2 or 3 vacuum lines there that can be pulled off while the engine is runnning. If you get vacuum in one of those, you are good to go. If not, the problem could be at the back of the intake or the vacuum canister under the battery.. or anywhere in between. The line behind the intake runs in the harness and has only like 3 or 4 inches sticking out.
Good luck
An easy way to see if you are getting vacuum inside the car is to pull footwell cover from the bottom of the passenger side dash, there are 2 or 3 vacuum lines there that can be pulled off while the engine is runnning. If you get vacuum in one of those, you are good to go. If not, the problem could be at the back of the intake or the vacuum canister under the battery.. or anywhere in between. The line behind the intake runs in the harness and has only like 3 or 4 inches sticking out.
Good luck
Thread Starter
Burning Brakes
Joined: Apr 2002
Posts: 1,083
Likes: 0
From: Spanish Fork Utah
Thanks for the pic vettenuts.
As for the "swinging", I assumed that the actuators did indeed swing because I can hear something move in my own C5 when I **edit** turn the temperature **** from cold to hot **/edit**. It sounds like something is swinging to divert the air (I can only hear it with the engine off, and then, just barely. No, if I could hear it over the engine I would be freaking out).
In my friend's particular problem, it doesn't matter whether he selects for his vent to blow up high, the defroster or at his feet. That never changes. And since it's not cold, he might be low on 134a, so possibly two problems. We'll see!
Thanks,
Shayne
Last edited by B84RADR; Jul 2, 2007 at 02:39 PM.
