Where is the heater control valve on a Ford?
Where is the heater control valve on a Ford?
Plug the heater control valve hose at the heater control valve end. Connect a vacuum pump to the function selector switch vacuum harness connector and try to pull a vacuum. Does the hose leak? Yes INSPECT the in-line connector, and both engine-side and cabin-side hoses.
How do you change the temp on a Ford heater?
Adjust the temperature control to full warm position, and physically feel the discharge air temperature at the heater outlet floor duct. Rotate the temperature control to full cool position, and physically feel the discharge air temperature at the heater outlet floor duct.
Is there a way to replace the heater control valve?
Yes REPLACE the heater water control valve (18495). TEST the system for normal operation. No GO to B7. Plug the heater control valve hose at the heater control valve end. Connect a vacuum pump to the function selector switch vacuum harness connector and try to pull a vacuum.
Why does my Ford heater have no heat?
The Ford Heater temperature control issue comes down to this: A problem with the variable resistor inside the blend door actuator, in which case you must replace the actuator or, A problem with the blend door actuator motor, in which case you must replace the actuator or, A problem with a binding or stuck blend door. the blend door by hand.
Why is my Ford power stroke engine hot?
Water flowed freely. Both hoses to and from the heater core are hot. Upper radiator hose is hot, lower is cold. The coolant is close to full. The degas bottle when filled to the max line will puke coolant when I rev the engine and let off.
Why does my Ford truck have no heat?
You’ve probably got air in the heater lines due to a blown head gasket. Install a piece of clear hose on the heater core inlet and you will clearly see it if this is the case. If you rev engine @ 1500 RPM do you have any heat then? FWIW the block testers are useless on these trucks.
Where is the temperature controller on a Ford F-250?
Automatic Temperature Control-equipped dual zone trucks have two; the second actuator is low, located above the transverse air duct. Does the temperature controller work? The related article below provides instructions for testing the manual controller, a simple potentiometer.
Why do I need to replace my heater control valve?
During times when the air conditioner is in use, the heater control valve closes, preventing engine coolant from entering the heater core. The result is less heat in the passenger compartment, allowing the air conditioner to work more efficiently. Follow the step-by-step guide below for directions for replacing a faulty heater control valve.
