why won't air come out of vents when a/c or heat is turned on

why won't air come out of vents when a/c or heat is turned on 1 Answer

When the heat is on, or the a/c, blowing a lot of air, it'll stall out...turn off at light or sign. What is the cause 10 Answers

I need to know if it's something major and who would I take to look at it and not get charged a ton

My 2004 envoy sle 4X4 will not start,,when turning ignition on my dash lights come on except my engine light beside the anti-theft why is that 4 Answers

While driving my envoy would stall like no tomorrow,i would have to play with the ignition to get it started again ,now its parked in my driveway and it will not start at all..all lights come on my cl...

Gmc envoy shakes when air conditioning is on 1 Answer

What is it that I have fix

Why is my 2008 Envoy temp gauge working erratically, causing the check engine light to come on and when it is working the check engine light will go off? 2 Answers

sometimes my temp gauge works and sometimes it doesn't. when it doesn't work the check engine light comes on. even though I have had the temp gauge sensor replaced.