[This should help]
One day last winter I noticed a lot of blue smoke from my exhaust. I guess the CCV was frozen. Time to replace it.
I ordered the "cold climate" CCV parts and they are quite different. The all have much more insulation on them AND the CCV wears a rubber jacket:
This is one huge PITA job. I took me about 4 hours, but I also cleaned the idle speed control and the throttle body. I did not remove the intake, but one critical tool you will need is a large mirror. I used a 6" x 8" mirror from Walmart, $6.
AND to make it more difficult, the "rubber jacket" on the cold climate CCV is a very tight fit with no wiggle room. This made it very difficult to connect the upper hose. That single hose took about 45 minutes to connect. Don't try this job if you are tight for time.
None of my hoses were cracked, but I changed them all anyways. The old CCV seemed to be in OK shape and the diaphragm was not ripped.
Here is a pic of the old (non cold climate) CCV together: