S-10CREWCAB.NET

Well, I replaced the air blend door. It was much more expensive, as the Envoy has electronic controlled actuator (other S-10s with non-computer controlled climate must have a vacuum operated actuator). it fixed the problem instantly. hope this helps if anyone else has this same problem. Thanks for y...

Well, that's great news. I can finally get some sleep. (Seriously, how do you know that? Impressive.) I tore back into the evaporator unit today and removed the door actuator. The plastic ring gear is split in two spots. And the actuator continuously turns to keep the door to the hot side. Once it w...

well. i checked the vacuum lines by the brake booster. had to figure out which ones went where. (one goes across motor to 4wd system- i think; one goes to a plastic deal attached to the inner fender-deadends; then one goes into the firewall to the interior). the vacuum line that goes to the interior...

i'll doube check that area for vacuum leaks. i did pull off some lines to the underdash unit and all had decent suction. yes, it has gmc's version of auto 4WD. 2000 gmc envoy (just like the jimmy, but more problems i think). i took a picture of the dangling wires this morning. you don't seem to thin...

i have an 00 with computer climate control. the fan and vents/floor/defrost work fine...except for all i get is hot air. with the fan off and temp set to cold, i still get hot air being forced out the vents. its like a heater valve is stuck open. the air door actuator was acting up (constantly openi...