I have a (heater acuater)sorry about spelling.Its under blower moter clicks for 30 to 45 seconds when you turn key on and again when you turn off.Does anybody no what it is called.

 

It is the blend door actuator

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watched vid thats it.thats twice you have saved me.

 

This ought to help

 

That will come in handy.Can i get it at any parts store

 

Yeah but IMO anything but the AC/DELCO are junk

 

Thanks again i will leave you alone now.

 

No problemhope you get it fixed i've had em go out on just about every one of my trucks and its annoying and I always hate when someone ets in the truck and says whats that noise I tell them the knuter valve and leave it at that

 

I will remember that.Until now i just told them it was a chevy thing.

 

Or a GMC thing