Question about 2000 Ford Expedition
There are 2 systems for making heat in your vehicle. One is the water system and the other is the air ductwork.
Check both heater hoses for equal heat when the engine is at normal operating temperature. Careful not to burn yourself, but you need to grab each hose and compare the heat. If they are not equal, then your problem is water flow. There are flow valves which need to open to circulate the water through the heater core.
If both hoses are equally hot, then the problem is inside the cabin and in the ductwork. An air passage is blocked by an inoperable flap mechanism.
With some Digital Climate controls, self diagnostics is possible. You will really have to dig for the info on the Web or go to a Dealer. Certain keypad sequences can be entered to release the Codes. But the Code numbers are in a different table of Codes separate from the typical engine Codes. Depending on who made the Climate Control can affect how to do everything.
The net result for the diagnostics is to identify any small solenoids that are not opening the flaps in the ductwork, or other defects.
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Posted on Dec 30, 2012
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Posted on Jan 02, 2017
impeller is made of plastic on teh water pump and its slipping and spinning on the shaft renew before weather warms up as engine will overheat
Posted on Jan 01, 2009
Make sure the heater core is in the open position by using the shut off valve and turning it to open. next, you may have a malfunction in the direction door the directs the air flow in the dash. a lever may have become lose or separated. may be a bad servo motor not directing the door to move to the heater position. i would start by checking that shut off valve first on the heater core.
Posted on Mar 13, 2009
Check the heater control valve and see if it's operating properly. This should be on or close to the firewall behind the engine. There will be coolant hoses attached to it. There should be an arm or lever on the valve which is attached to a cable coming from inside the car. Moving the heater temperature control inside the car should cause this arm to move, thereby allowing hot coolant to enter the heater core. If this arm doesn't move freely, you don't get heat.
Posted on Oct 18, 2009
If you smell antifreeze it may be 3 possibilities: 1. you may have a leaking hose/hose connector , or water pump. 2. your heater core is bad and needs replaced. Unless you know what you are doing I would highly suggest taking to dealer for heater core replacement. The dash and steering colum has to be removed to get to the heater core. This is not an easy job believe me (about-900-1200 job). If you have your heater core replaced then also replace the climate control door. This is good preventative maintenance and also a a dollar saver. I would have a pressure check run on your radiator as a first thought. All you may have is a bad hose and that can easily be replaced.
Posted on May 20, 2010
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