I would like to confirm the length of CCA rod that should be visible when the car is idling (i.e. "pulled in" and closed). I'm seeing about 3/8 - 1/2 inch of the rod when idling and I think that means the CCA is not closed as it should be. Any input is appreciated. Thanks!

 

You can just push the rod with your finger all the way in to see, and that's where it should be.

 

Cool thanks, that's what I thought. So when it's all the way pushed in, it's probably about 1/16 - 1/8 inch exposed?

 

The easiest thing to do is just start the car when it's cold so you won't burn yourself. When the rod gets pulled in naturally by the vacuum, see if you can still push it in more with your finger. If you can, then you have a problem, if not then it's fine.

 

There is an arm alongside of it that hits a stop. Under full vacuum (idle) it should pull all the way to the stop.

 

Thanks everyone. It's definitely not pulled in. The two lines are attached. I guess it's on to the solenoid (I already tested the CCA itself by applying vacuum to the appropriate line and it pulled in just fine).

 

OK, no luck with replacing the solenoid. The CCA arm is still not pulled in at idle. I guess the next thing to investigate is the ECU and the wiring.

Also, my pressure chamber is not pressurizing. If I let the car idle, I'm assuming the chamber slowly pressurizes. Is that a correct assumption? I hooked a pressure gauge to the output of the chamber and no pressure at all.

Any help is appreciated.

 

the best way to find out if your pressure chamber has a leak is to remove it, and apply pressure to it, while submerging it under water, which would also show you where the leak(s) is coming from.

someone did this same trick a while ago and was able to repair the crack and he's been good ever since.

I also believe a check valve is in line with the chamber, but i cant be too sure as i have yet to dive into my rats nest and diagnose an intermittent problem with my secondary turbo.

 

Did a pressure test with the chamber and it was fine. There is a check valve in line with the input to the chamber. I have a new one installed so it should be fine.

 

The pressure chamber will only pressurize when there is boost in the manifold.

David

 

Thanks, that helps. On the CCA, do you think I have any other options to troubleshoot other than checking out the ECU and wiring?