Quote Originally Posted by Carolina Rauder View Post
I just did my second EATC repair. The first repair I replaced the the OEM o-rings with regular rubber o-rings. This time I ordered some silicone o-rings. So put my EATC back in turn on and the same problem persists. Air STILL Blowing out of DEFROST VENT ONLY.... I then performed an EATC Self Test, and I got 888 with all displays. Which I read to be No Codes... So someone please tell me what else can be WRONG?????
Sounds like there is still a vacuum leak. Recheck the EATC, the red connector inside the EATC, the external vacuum hoses, etc. You could also have a cracked valve body in the EATC.