Heating issues

[1SilverBullet2]

I'm not sure if this topic belongs in this section...but anyways my heat will not switch over to cold when I turn the dial and even wait. My truck still blows hot air. I don't know when this started but it's been getting warm around here and I wanted to have some cooler air blowing but then I found out my temperature doesn't change.

 

[1SilverBullet2]

Bump! Can anyone please help me out? My A/C isn't even blowing cold air now

 

[rowdyram]

You temp door isn't moving. Does the knob have normal resistance?

 

[Arlucian]

I've been having similar problems but mine switches from cold to hot fine but changing from defroster to dash etc doesnt work it always blows out the defrost and floor which i believe is a vacuum issue?

 

[1SilverBullet2]

Rowdy, you mean resistance as in ohms correct? If so I haven't pulled my dash apart to check any electricals. Otherwise my temp knob turns just fine.

 

[Arlucian]

I'm pretty sure he means physical resistance turning the knob, otherwise i think he would've given an acceptable ohm range. Check your vac lines i found a couple of mine ****** up i haven't been able to fix them yet but im willling to bet thats it.

 

[1SilverBullet2]

Alright I'll have to check those after my truck returns from the shop. Would an air pocket in the cooling system have anything to do with it?

 

[rowdyram]

Yes I meant physical. Your temp switch is either vac or cable. Pull your dash and check to see which it is

 

[rowdyram]

It wouldn't be an air pocket if its blowing sufficient hot air