How to Replace a Heater Control Valve

Start the engine and allow it to warm up. Turn on the heater.

Move the heater temperature switch from cooler to hotter and check for a change in air temperature.

Turn off the engine. Open the hood and locate the heater control valve. It is usually mounted to the firewall on the passenger side.

Verify that the temperature control cable is connected to the heater control valve and the valve is opening and closing. Check for coolant leaks at the valve.

Allow the engine to cool down.

Disconnect the control cable from the heater control valve.

Disconnect the heater hoses from the heater control valve.

Remove the old heater control valve.

Install the new heater control valve.

Reconnect the heater hoses and the control cable.

Refill the radiator and overflow reservoir with coolant.

Pressure test the cooling system and check for any leaks. Top off coolant in the radiator.

Install the radiator cap.

Start the engine and allow it to warmup. Turn on the heater and move the temperature switch from cooler to hotter. Verify that hot air is coming out.

----------------

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

The Brake Indicator Light Stays On dash of car?

http://schematicsdiagram.blogspot.com/2011/06/brake-indicator-light-stays-on-dash-of.html

The ABS and Traction Control Lights stays ON dash of car?

http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html

Check Engine Light On car?

http://schematicsdiagram.blogspot.com/2011/06/check-engine-light-on-car.html

-------------------------

How to replace Interior Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-interior-lights-on-car.html

Car lights not working, even after replacing the bulb/lamp?

Click this link below:--

http://schematicsdiagram.blogspot.com/2011/06/car-lights-not-working-even-after.html

---------------

How to replace head lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-head-lights-on-car.html

--------------------

How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html
How to remove the door panel on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-remove-door-panel-on-car.html

How to replace power window motor in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-power-window-motor-in.html

How to test relays on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-relays-on-car.html

-----------------------------

How to troubleshoot Engine Misfires?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-engine-misfires.html

------------

The spark plug firing order for car?

http://schematicsdiagram.blogspot.com/2011/06/spark-plug-firing-order-for-car.html

------------------------

Where is the Thermostat located in car?

http://schematicsdiagram.blogspot.com/2011/06/where-is-thermostat-located-in-car.html

How to recharge AC on Auto/Truck/car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-recharge-ac-on-autotruckcar.html

-------------------

How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

To Order car parts online:--To get heavy discount on car parts .Click this link below:----

http://technoanswers.blogspot.com/2011/05/from-where-to-order-car-parts-online.html

How to Replace Coil Springs?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-coil-springs.html

How to Replace an Oil Pan Gasket?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html

How to Replace a Fuel Injector

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html

How to Replace a C.O.P. Type Ignition Coil?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-cop-type-ignition-coil.html

How to Replace a Fuel Pressure Regulator?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pressure-regulator.html

How to Replace a Fuel Pump?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pump.html

How to Replace a Rear Lift Gate Locking Mechanism?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-rear-lift-gate-locking.html

How to Clean a Fuel System

http://schematicsdiagram.blogspot.com/2011/07/how-to-clean-fuel-system.html

How to Replace an Ignition Coil

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-ignition-coil.html

How to Replace a Windshield

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield.html

How to Replace a Mass Air Flow Sensor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-mass-air-flow-sensor.html

How to Replace a Rear Distance Sensor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-rear-distance-sensor.html

How to Replace a Muffler

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-muffler.html

How to Replace an Engine

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-engine.html

How to Replace an Intake Manifold Gasket

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-intake-manifold-gasket.html

How to Replace an Oil Pump

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html

How to Lubricate a Brake Pedal Linkage ?

http://schematicsdiagram.blogspot.com/2011/07/how-to-lubricate-brake-pedal-linkage.html

How to Replace a Windshield Wiper Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

How to Replace a Distributor Cap

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-distributor-cap.html

How to Replace a Door Weather Stripping

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-door-weather-stripping.html

How to Replace a Freeze Plug

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-freeze-plug.html

How to Replace a Head Gasket

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-head-gasket.html

How to Replace a Heater Core

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-heater-core.html

How to Replace Spark Plugs?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-spark-plugs.html

How to Replace a Rear Axle Bearing?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-rear-axle-bearing.html

How to Replace a Front Bumper Cover

http://technoanswers.blogspot.com/2011/07/how-to-replace-front-bumper-cover.html

How to Replace a Manual Transmission

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-manual-transmission.html

How to Replace a Headlight Bulb

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-bulb.html

How to Replace a Headlight Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-switch.html

How to Replace Windshield Wiper Blades

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-blades.html

How to Replace a Cooling Fan

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-cooling-fan.html

How to Replace a Catalytic Converter

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-catalytic-converter.html

How to Replace an Engine Mount

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-engine-mount.html

How to Replace a Fog Light Assembly

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fog-light-assembly.html

How to Change Engine Oil and Filter

http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html

How to Replace a Power Seat Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-power-seat-switch.html

How to Replace a Rear Main Seal

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-rear-main-seal.html

How to Repair a Defroster Grid

http://schematicsdiagram.blogspot.com/2011/07/how-to-repair-defroster-grid.html

How to Replace an AWD Transfer Case

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-awd-transfer-case.html

How to Replace a Plastic License Plate Bracket?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-plastic-license-plate.html

How to Replace a Power Seat Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-power-seat-motor.html

How to Replace Power Steering Fluid

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-power-steering-fluid.html

How to Replace a Power Window Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-power-window-switch.html

How to Replace a Quarter Glass Panel?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-quarter-glass-panel.html

How to Pressure Test a Radiator and Cap

http://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html

How to Replace a Radiator

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator.html

How to Repair a Hood.

http://schematicsdiagram.blogspot.com/2011/07/how-to-repair-hood.html

How to Replace an Energy Absorber

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-energy-absorber.html

How to Replace Heater Core Hoses

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-heater-core-hoses.html

How to Replace a Thermostat.

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-thermostat.html

How to Rotate Tires.

http://schematicsdiagram.blogspot.com/2011/07/how-to-rotate-tires.html

How to Replace Wheel Lug Nuts

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-wheel-lug-nuts.html

How to Replace a Tire Valve Stem

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-tire-valve-stem.html

How to Change a Flat Tire

http://schematicsdiagram.blogspot.com/2011/07/how-to-change-flat-tire.html

How to Replace Leaf Springs

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-leaf-springs.html