at idle it will let a little heat come out the lower vent but when start driving cold air only i have look for vacume hose but do not see any going in to the cab at all there is to heater hoses that connect to the heater core and beside it is what looks like anouther fitting3/4" with nothing hooked to itis this just a large vacume fitting or a drain
2007-01-30 00:49:57 · 3 answers · asked by william b 2 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
well it seam that some folks think your an idiot if you dont have a pic the heater hose are both on there the problem is when the truck is at idle it blows warm air with the heater on and when you start driving it is cold air my ? was is the a vacum hose that controls this i have gotten this far i do not want to take the dash apart until i know what im looking for
2007-01-30 13:04:43 · update #1
full of coolent
2007-02-02 09:59:07 · update #2
You have to have two separate heater hoses for any system to work at all. The heater core supply hose usually comes off the right rear of the intake and the core return goes to either the right side of the rad or the top of the water pump. The return is the bigger hose, 3/4 as opposed to the inlet being 5/8. For sure you have to have these before continuing. These temp. door and actuators can be accessed through taking the complete glove box assembly out. Once inside there the door or the linkage for the door and the actuator or cable will be visible on top of the heater box. You will have to decide what is broken or stuck from further diagnosis. Good luck.
2007-01-30 05:35:09 · answer #1 · answered by Deano 7 · 0⤊ 1⤋
Sounds more like a clogged heater core.
2007-01-30 06:39:53 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Is the antifreeze level low?
2007-01-31 04:49:56 · answer #3 · answered by mopardragracer 2 · 0⤊ 0⤋