how hard is it to change the heat actuator on a 1990 2500 non a/c truck and wher on 1990 Chevrolet 2500 Pickup

no heat and it blow's cold out of all the vents

by in Omaha, NE on October 18, 2013
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3 answers 6 comments
ANSWER by , October 18, 2013
poss heater control valve is stuck closed
COMMENT by , October 19, 2013
is this under the dash ? Thank You Very Much
ANSWER by , October 18, 2013
Both heater hoses hot after engine has reached normal operating temp? If not, possible heater core restriction or stuck open thermostat! Cooling system FULL? Heater core can be flushed out, it might help.
COMMENT by , October 19, 2013
cooling system is full, both hoses are hot at operating temp, the temp rise's like the thermostat is ok, I just drove it fifty mile's with no issue's just no heat, I bought it a month ago at a auction county shop owned, and it has sat for a few month's Thank You Very Much
ANSWER by , October 18, 2013
By "heat actuator" are you referring to the electronic actuator mounted to the air box inside the cab?
COMMENT by , October 19, 2013
I think it is cable controlled on this one!
COMMENT by , October 19, 2013
I was told there was a gear driven actuator but it may be cable, I am wandering which way to go into the dash first thank you
COMMENT by , October 19, 2013
Drop the glove box down, look on top of the heater box.
COMMENT by , October 20, 2013
thank you I will do that today