Question about 2000 Ford Expedition
I think you may have a tempature blend door failed or broken in the ac-heater plenum assembly, like wow i know that sounds extreme but ive done a lot of them. the door controls airflow between the heater core and evaporator core for heating or cooling. the hinge on the door breaks and it stays in whatever position. the door is controlled by an electric actuator.
first when the engine is warm and running, feel the heater hoses that go into the passenger compartment through the firewall.
see if both are hot. if they are then the problem is inside the passenger compartment and coolant level, themostat, heater control valve, and all that is ok.
under the center of the instrument panel, to the right closer to the passenger side, is the temp blend actuator. wiht a flashlight and some hunting you can tell if it is moving when you change from hot to cold on the controls. if it is moving the door is broken inside.
the dash has to come out and the plenum partially dissasembled.
Posted on Feb 11, 2009
Hey everyone I found the fix to my no heat problem with my 98 Expedition.
was right the bend door was broken but I did not have to tear out the dash etc to change it. I found a web site that has an aftermarket repair part and instructions for all us shade tree mechanics out there check out this website I hope it helps. It cost me about 130 bucks instead of the 1800 the dealer wanted. God I almost messed my pants when the dealer quoted me that price. I hope this helps and no I have no affiliation for this website. I actually found the link on the FixYa website. www.heatertreater.net .....he said he is an engineer and did this fix by reverse engineering the heater distribution system. God bless and lots of luck!
Posted on Feb 11, 2009
Have you Checked your coolant level in the radiator?
Posted on Dec 22, 2008
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Posted on Jan 02, 2017
SOURCE: Heater Coil
what do u mean by heat coil? heater core? if yes the the dash must come out, see link for step by step instructions
Posted on May 14, 2009
That's because they are hidden quite well. If you look at the engine, you'll see yellow plastic prongs (?) that look like spark plugs, but hook up to the silver tubing. That's the fuel injectors. BUT, right behind the yellow plugs, are black ones. The black one is the connector to the spark plug. The plug itself sits about 4 inches down into the block of the engine. They are a real pain, and from what I can tell, you only have decent access to the first 2-4 of them, then they get too far back and start going under the dash (you'll see what I mean when you get there).
Posted on Aug 06, 2008
i am not going to lie to you on this. if you do not have a very good mechanical back ground you should not attemp this procedure your self because it could result in serious injury. it should be brought to a shop because they do have the right tools to do this. alot of the time ball joints are pressed in under extream amounts of pressure
Posted on Apr 21, 2009
First where is the coolant temp at on the gauge, If the water isnt getting to 180 to 210 then you may have a stuck open thermostat.. Its also possible your water pump impellers are deteriorated to the point they dont push enough water. This is all based on knowing that noone put stop leak in the system. Stop leak could clog the heater core but not effect the engine and it could of caused the themostat to stick open. Also its possible your climate control knob is bad. I've seen then crack. Pull it off and look. Also listen with the fan on. Listen for the doors changing. Also do you have duel climate control. If you have heat in the back but not in the front then i'd suspect a control issue. If you have the same front anfd back I would suspect a coolant issue.
Posted on Jul 13, 2009
You will be told that it is passenger side 02 sensor before the cat,, but it is not .. Drivers side right after the manifold is the one you are after.
Posted on Jul 31, 2010
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