I hope one of the "Guru's" on here can help me sort this mess out.

I'm trying to find out why I've never had A/C from the vents, and it really is a mess under the hood. The photo might help explain better just what I'm dealing with.

The upper left circle is the first 2 connections for vacuum; the one furthest back is going to the PVC valve and I think that's right, execpt there should be 2 connections there instead of one (the part that should be there looks like the letter "F" for lack of a better description). The second connection is for the brake booster; that part is fine.

Here's where it gets weird....

The accumulator(ball) is connected to the cruise servo; that's all (cruise hasn't worked in a long time and I wasn't too concerned about it as I don't use it). there's a "tee" by the bottom of the ball with the short end capped off (QUESTION: wouldn't that capped off part of the tee be going tword a vacuum source like that "F" adapter in the upper manifold?).

Now, to the passengers side. The split loom that carries the pressure cycling connector and the water control valve vacuum line (1/8" black tube) has another 1/8" black tube coming up that's in the lower circle. I found it when I changed the plugs and wires and I pulled it out for clarity; I have no clue where it goes. Possibly from the missing check valve it's suppost to have on the passengers side and it doesn't show in the FSM or the suppliment, so my next QUESTION: where would it go and where would it draw from a source?

I do know that the crankcase vent on the valve cover should be hooked to the bottom of the air cleaner, so onto a third QUESTION: what is the forward connection supposed to be connected to?

Thanks in advance for your thoughts on this...

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Bob? That you? (Schrade @ CAC boards)...

Quote:
If the CFI is setup the same as the later cars then a T at the CC should go to a one way valve then to intake vac source
That same valve serves to split the vac to the HVAC inside and the CC / vac ball in the engine bay

Unfortunately that system is not shown in this CFI vac diagram

Hey Chuck, it's me...thought I'd give this problem to the "Gurus"...any ideas on this mess?

Thanks Oz; I found the vacuum diagrams in the A/C section. You're right that's how its routed, but where is the source connection? Is it where the ball is tied to? (top left circle at about 10 O'clock). That's where I think that 2-way adapter is supposed to be.

Hey Bob...

I don't know CrossFire.

I know vac leak detection as best as any however; do you have a leak? Or just trying to get OEM vac routing?

(only person ever got it right was weavsvette, from guru boards here)

Vac leak:

Quote:

"I know vac leak detection as best as any however; do you have a leak? Or just trying to get OEM vac routing?"



Things have been messed up since day one....I'm trying to get it back to OEM routing, including emissions (PVC and crankcase venting)

I've got everything straight except the rear connections on the upper intake. I'm pretty sure from what I've been able to see, that the check valve goes at the rear most vacuum source. That is where the accumulator and A/C vacuum lines are tied together.

I was hoping another crossfire owner would chime in with more info to confirm my thoughts.