Car heater problems

[Metalloid]

It was working fine. Had a couple of days when it was really cold, and it was sitting outside the whole time. Then I go to use it and the stupid thing is blowing cold. I jiggle all the nobs back and forth a few times and eventually get it warm. So I thought nothing of it, but now it is getting worse. It will usually heat up, but only blows hot on the lowest setting. As soon as I turn the fan speed up, it starts blowing cold. Like the air being pushed through the system isn't getting heated quickly enough before it is blown at me.

Anyone know what is going on?

 

[VirginiaDonkey]

thermostat probably stuck open.
does the tem guage stay close to "C"?

 

[Calin]

Or maybe just dust on the inside of the heat exchanger

 

[toant103]

let's hope it's not the heater coil. It's a b!tch to replace.

 

[Siddhartha]

What kind of car is it?

 

[TechnoKid]

car year make model

and list recent maintenence done, especially anything to do with the cooling system.

 

[NutBucket]

Originally posted by: toant103
let's hope it's not the heater coil. It's a b!tch to replace.

If that was f'd up the carpet would be soaked and would smell like coolant.

 

[Metalloid]

91 Cutlass Ciera

Can't think of any work on cooling system.

My gf's step-dad also thinks it might be the thermostat. I will have him look at it next weekend.