HOW TO - Replacement of Heater Control Valve - Chevy Astro Van / GMC Safari

Описание

Here I explain a very basic #automotive #repair that may save you some real cash by doing yourself. How to Remove and Replace a Heater Control Valve on a #Chevy #Astro #Van
HOW TO - Part 2 - Replacement of Heater Hose Fitting - Chevy Astro Van / GMC Safari
https://www.youtube.com/watch?v=IM8z0vBnic4
HOW TO - Part 1 - Replacement Of Heater Hose Fitting - Chevy Astro Van / GMC Safari
https://www.youtube.com/watch?v=3AbrNkmod-A


Music provided free of royalty's by Jason Shaw @ http://www.audionautix.com "Thingamajig"
The purpose of a heater control valve is to control the flow of engine coolant to the heater core, located within the passenger compartment. When the heater or defroster is turned on, warm engine coolant passes through the heater core. Here a fan forces air across the surface of the heater core and then into the passenger compartment where the warm air is felt. Warning: Be sure the vehicle’s engine is cool to prevent burns to the skin. It is also always a good idea to wear safety glasses to prevent any contaminants from getting into the eye. The heater control valve exists in a part of the system after the engine, but before the radiator so the coolant in this part of the system has been heated when it arrives to the valve. Once the valve is activated, the heated coolant can flow into the passenger compartment and fill the heater core. Air is blown across the heater core which removes heat from the coolant and the heat is transferred to the air that flows through the vents in the passenger compartment.
The heater control valve is part of the vehicle's cooling system as coolant does flow through this valve. Engine operation generates a lot of heat and this heat gets transferred from the engine assembly to the liquid coolant in the cooling system to be cooled by air flowing across the radiator. The radiator cooling fan, generally found at the front of the vehicle, pulls or blows cool air across the radiator which transfers the heat to the air and the cooled liquid coolant inside the system returns to the engine. The mechanical unit can leak coolant or the vacuum diaphragm can rupture causing a vacuum leak which will stop control valve operation. The cooling system is pressurized so a coolant leak at the control valve can cause the coolant level to become very low and cause the engine to overheat.
Materials Needed:
Basic mechanics tool set
Channellock pliers
Coolant recovery container
Flashlight
Gloves
Hose pick tool
New Coolant
Safety Goggles or Glasses
Silicone Spray Lubricant
Spring clamp removal tool
astrosafari.com
astrosafarivans.org
www.chevroletforum.com
astrosafari.proboards.com
https://www.gmtruckclub.com
www.vitalmx.com/forums
https://forums.edmunds.com
#chevrolet #GMC #generalmotors