Well, I used an alternate method to flush out the CAC on my XSport this past weekend. Finding this post after the fact cause me to have a mini panic attack, but my worries were unfounded. This past weekend I installed a RX Monster Catch Can and one of the recommendations was to drain the CAC. I actually back-flushed mine with it still installed in the vehicle, and this is how I did it (ATTEMPT AT YOUR OWN RISK):
1 ) Jack up (or drive up on a ramp) the passenger side of the vehicle. I didn't do this, but I will in the future. This will make the driver's side lower than the passenger side.
2 ) Remove upper connection from passenger side CAC outlet to throttle body - leave bottom clamp tightened
3 ) Disconnect charge pipes from driver side CAC inlet - remove charge pipe all the way down to the front side turbo so it doesnt fill with cleaner and/or water (don't ask me how I know.
)
4 ) Pour Simple Green (full strength) down the CAC outlet pipe and let sit for 10 minutes.
5 ) Pour Simple Green dilution (1 part SG, 3 parts hot water) down the outlet pipe. I did this 3x with 1 gallon of mixture each time. I also blocked off the inlet side with my hand to allow the CAC to fill up with cleaner several times. A helper to pour in your cleaner is helpful.
6 ) Repeat step 5 with clean water (I used my garden hose) until water runs clear.
7 ) Dry out the CAC using a CLEAN air source (not a leaf blower). I have a Master Blaster that has two 4 HP motors, which blows filtered dry, warm air (much cooler than a hair dryer or heat gun). I wrapped a towel around the blower hose and put it in the outlet side of the CAC and let the blower run for 1.5 hours - about 1 hour longer after I stopped seeing evidence of moisture. I let the car sit overnight and put the blower on it again in the morning for 15 minutes to confirm no additional moisture was coming out.
8 ) Reinstall charge pipes and reconnect hose at throttle body.
After going through my process, I found this "how-to" and freaked out thinking maybe I left a gallon of water sitting down my CAC. I had Amazon overnight ship me an inspection camera, and to my relief, the CAC looked squeaky clean (and dry) except some minor oil staining in the aluminum passages. I attached a picture (post cleaning), but for some reason the resolution does not look nearly as good as it did on the screen and the time stamp did not apply at the same orientation as what I set the image to on the screen.
