sorry it might only be accessable for technicians... ill try to get something up for you...

 

Any new info on this?

I know it's an old thread, but I just threw P0455. The auto parts place said it was the Evap Purge Cylinder (which showed on the drawing to be right near/on the throttle body), but after reading this thread, it sounds like it could be a number of things.
Just hoping someone can give an update on other things to look for or supply the info that is in the non-working link.

Thanks,

Scott

 

You can go through the trouble of a smoke test....NTB and others do it for about $100.....most likely its a vacuum hose leak if its not the gas cap.

 

how is your engine running? if it was the purge it should be running rich I think.

 

Car is running just fine. I cleared the code 2 days ago and it hasn't come back yet. We'll see how long it stays off and then I'll start digging around underneath and see if I find any loose, rotted or torn hoses.

 

"I don't care about the "Jeep thing" as long as my mail is on time!!!"

NOW THATS FUNNY!!!!!!!

 

Hello everyone I am a new member but not a new Hummer owner. I have had my H2 for about 3 years now with never a problem. Now I have a problem, every time it rain or I go to wash it I get a decent sized puddle on my drivers side floor. So much that I have to use the shop vac to get all the water out. I have tried experiment with the moon roof, the door seal, and the hood vents and came up with nothing. Any ideas? I asked a friend of mine that owns a big SUV and said to check the roof drains? Thanks in advance.