Chevy Corvette

1984corvette blows heat all the time in the driver and passenger compartment and the heat is off?

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2006-10-26 21:31:34
2006-10-26 21:31:34

VACUUM CONTROLLED DOOR IN DASH THAT CONTROLS ALLOWING HEAT OR AC IS STUCK OPEN.

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Assuming it has duel temp controls, one for the driver and one for the passenger, one of the temp blend door actuators has failed.



There is a differential vane in the AC ductwork that regulates the flow of hot and cold air into the two halves (driver/passenger) of the system. Failure of this mechanism is one of the more notorious problems with the LS.



Had the same problem. In my case it was the actuator motor inside of the panel in the passenger footwell. Check to see if the flap is binding or it is the actuator motor itself.




Assuming the HVAC has duel controls for driver and passenger comfort, one of the temp blend door actuators has malfunctioned.


MY WIFE TOLD ME: THAT HAPPENS WHEN THE AC SYSTEM IS LOW IN REFRIGERANT, (IF SHE SAYS THAT , IT'S TRUE )


It acts like a small radiator to warm the interior. Warm/hot coolant from the engine circulates through it, while air blows across it. This air is warmed by the coolant, then is directed into the passenger compartment to warm the car.



Yes. Ultimately the driver is responsible for the vehicle and for everything that happens to/by it. If the driver wasn't responsible, who would you suggest might be?


the problem is a part called the air temperature control blend door actuator motor, it is deep inside the dash and the dash must be removed to replace it.


This happened on my 02 Grand Prix. There is a switch that needs to be replaced, be prepared to pay about 200 bucks


The blower is common to hot and cold air. If it is only cold air that is a problem, then the problem is not the blower motor. The blower motor is actually in the engine compartment, passenger side at the firewall.


Dissconnect the battery for 1 hour and reconnect, should re-set the flaps!


There's an MVAC compartment on the firewall on the passenger side... just look for a tube.. should be black rubber... sometimes (not often) they might be clear... take it off, wash it out with water or blow it out with compressed air. It usually doesn't go to anything... it just lets the water drain wherever. Make sure you reinstall the tube, though.. on some vehicles, if you don't have that tube there, then air from the engine fan blows directly into it, and you get that water blown into the passenger compartment.


small vacuum hose in engine compartment is cracked


The refrigerant itself doesn't do all of the work... heat and humidity is also drawn out of the passenger compartment by components of the AC system. In a nutshell, the refrigerant absorbs heat drawn from the passenger compartment, and cycles through the AC system. It is pressurized, which causes it to heat up even further. When it gets to the condenser, the heat is exchanged to the ambient air through the condenser fins. The refrigerant cools down rapidly and cycles back to the evaporator. By the time it reaches the evaporator, it is extremely cold. The blower fan blows air across the condenser, thus delivering cool air into the passenger compartment. That's a simplified version of it, but covers the essential parts of it.


When my a/c system is low on refrigerant, it blows hot on drivers side, cold on passenger side of the dashboard. This is a 1997 Buick Ultra. Recharging the system solves the problem.


My 1998 Intrigue did the same thing after battery was replaced. Found the answer online. Turn the AC and car off, disconnect the battery, wait 5 minutes, open both front doors, reconnect the battery, start car, turn on the AC full cold. This resets the computer and the AC works perfectly!



Well, the air conditioning system draws the heat out of the passenger cabin, transfers the heat to the refrigerant, superheats the refrigerant, then rapidly transfers the heat from the superheated refrigerant to the ambient air which flows through the condenser fins. This removes heat from the refrigerant, causing it to cool rapidly and drastically, and that cool refrigerant returns to the evaporator, where the blower fan blows over the evaporator, blowing the cooled air into the passenger compartment.



Automobiles horns serve as a waring device. A driver blows his horn to alert another driver and get his attention. This is why they are legally required for cars to have. They are also useful when you want to pick someone up at his house.



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