2006 GMC Yukon Denali "heat controller tech" Questions

2006 Yukon denali ac switches to heat while driving? Would need it looked at by a qualified tech. Could be a bad control unit, a bad blend door motor or an electrical fault.

...tech fixed and re connected battery ground to engine but since this took place my heat now comes out of the dash vents not the floor and i get no air to the windshield would it be the heat ac control ...

...heat Blows cold air whether system is in auto, or manual The tech needs to calibrate that actuator after replacement. Also he must be sure he is using the correct Part#. Some of those parts guys will ...

heater control valve 1997 + ford with 2.0 v-tech what does the heater control valve do on 1999 ford zx2? Engine over-heats over 2500 rpms or over 45 mph. Goes back down with heater on full or when ...

controller. All the rest of your system is in that "black box". So dont lose any more sleep, now you know. Hope that helps you out, and happy holidays. i'm no ford tech but i believe randy is right if

p0037. heater sen. where is it on the engine? The code is for the heater in the O2 sensor bank one sensor two.  That would be the sensor after the catalytic converter on bank one.It could be the ...

...heat control valve or plugged heater core.engine dies could have restricted fuel filter.replace spark plugs and wires see what happens. probly need a new heater core--------code can be got from a ...

...Reduced heat or no heat is often coolant air lock. Blend doors on this model are also a problem. You may be one of a few who have a bad blower motor. ...but this still needs diagnosis by a

...be able to get any heat a genuine unit is very expensive around $1500 but if you shop around you can get one for around $250 non genuine then its just a matter of getting a jag tech to fit it good ...

...heat is on full blast all the time and the controls do not work. Help! Please! bad hacks, your car is not stock now you get to find someone that wants to touch a hacked up car. good luck with that. ...