Hi, A heater valve is the device that controls the flow of the coolant from the engine to the heater core. It is usually mounted near the firewall or located on the inlet or outlet port of the heater core. For more detail information, please click the link below and scroll down to the mid bottom portion to see it. https://www.carparts.com/heater-valve

it's a valve controlled by a vacuum line, it connects to the hot water (heater) hose going to your heater core. What it does is shut off the hot water going to the heater core in the summer when you have the temp turned all the way down and just want to run the fan or the air conditioning. That way the cool air is not blowing over a hot heater core, defeating the purpose

A Heater Valve is what control the heat temperature inside your vehicle compartment.

2000 ford ranger heater control valve

Hi Jenny, I'm glad to help you out. It is possible that the mechanic temporarily fixed the part. It is better to replace the part for safety and peace of mind. Take advantage of the sale price and limited stocks for this item. Click this link to order this part: https://www.carparts.com/heater-valve/replacement/rf38310005?can=CPAP3648 I hope this helps. Happy shopping.

The heater control valve works like a door. When Vacuum is allowed, the door closes and will not let the water circulate and you will not have any heat go inside your vehicle. or the opposite on some vehicle. and that is why you have a rubber band on it to keep it close. you might also have a vacuum problem.

it isnt opening and needs replaced, rubberband hold it open constantly.

Hi Eric, I'm glad to assist you. We apologize, we do not have that very specific data readily available. You can refer to a vehicle-specific repair manual to identify that hose. Or consult with a local auto repair shop that specializes in your vehicle. For us to accurately identify the matching part for your car, please provide your complete vehicle information (year, make, model, submodel, and engine size). I hope this helps. Happy shopping.

Hi Jeff, I'm glad to assist you. No, the heater control valve is typically mounted near the firewall and acts as the valve that allows coolant to flow from the engine to the heater core, which is located inside of the vehicle. We have a vehicle-specific service repair manual for your car with part number 36024, by Haynes publication. This would help you in diagnosing the problem with your car. The possible parts that are affected are the blower motor assembly or the blower motor resistor. Grab our sale price offer and click the link below to order these items today. I hope this helps. Happy shopping. https://www.carparts.com/heater-valve/replacement/rf38310005?can=CPJE1043 https://www.carparts.com/details/Mercury/Mountaineer/Haynes/Repair_Manual/2001/Base/8_Cyl_5-dot-0L/H1636024.html?can=CPJE1043 (repair manual)