Question about 1998 Ford Explorer

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No heat 86 ford exp limited edition NO heat; new thermostat. not making any noises; chd hoses chd core; HELP!! What else can it be

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  • engine1385 Jan 15, 2009

    I have the same problem in a 98 ford explorer sport. Some one said the blend door. I am not sure where that is, but would like to know.

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  • 147 Answers

Heater core would be your problem

Posted on Nov 12, 2008

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Hi i have a ford exp 2004 my heat is not working blowing out cold and has a knocking sound when on high put antifreeze in it no help


Look in the engine compartment, Look straight back to the firewall. you should see two hoses going into the firewall, before you do anything, inspect those hoses make sure there are no cracks or leaks. If that passes then start the car and let it warm up. After is has warmed up feel the hoses if one of them is warm and the other is hot then you have a clogged heater core. But if they are both hot or both cold then I suggest to take it into a professional.

Jan 04, 2015 | 2004 Ford Explorer

1 Answer

Heater core or thermostat


Nothing in or around the heater core could make a noise. The core is just a small radiator with coolant circulating through it. And if you feel both heater hoses, and both are hot on a warmed up engine, then coolant is circulating through the core and the heat should be working. There must be a door in the heater case that is not letting heat come out.
The noise may be from the blower motor and its plastic fan assembly. It should be pretty easy to take out the blower motor and check for any obstruction.

Dec 10, 2013 | 2003 Ford Windstar

1 Answer

99 ford contour gauge shows running hot. Change both sensors near thermostat and the thermostat. Flushed system and burped it. Ac or heat makes no difference. Fans seems to be working. Any ideas?


Is it ACTUALLY overheating? Check for heat at the top and bottom radiator hoses, and at both heater core hoses. If one is cold then your radiator or your heater core may be plugged and in need of a individual flush.

Oct 29, 2013 | 1997 Ford Contour

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2003 f350 diesel no heat


thermostat is sticking open

Dec 25, 2012 | Ford F-350 Cars & Trucks

1 Answer

2005 ford explorer heat dosnt work


pull back the carpet on the passenger side and check for moisture, if it is wet your heatercore is bad. if no moisture and both hoses going to your heater core are hot it is possible the cable operated door is failing to open. this link should help in both cases http://www.autozone.com/autozone/repairguides/Lincoln-Aviator-Ford-Explorer-Exp-Sport-Exp-Sport-Trac-Mercury-Mountaineer-2000-2005/Heater-Core/Removal-Installation/_/P-0996b43f802e40b6

Nov 06, 2012 | 2005 Ford Explorer

2 Answers

No heat in cab in ford ranger 2005 tied heater


check if both heater hoses going into firewall are hot.. if only one is hot then your heater core is stopped up..you can take both lines loose and take a water hose and back flush,,, force hose on one inlet of heater core for a minute and then the other.. keep going to you get a good flow...make sure heater valve is open, not just valve position take loose and confirm clear..last make sure your thermostat is not stuck open keeping engine from comming up to temperature

Jan 04, 2010 | 2005 Ford Ranger

2 Answers

2000 ford taurus air from heater gets cooler when fan speed is turned up did a flush put in new thermostat, did not help


You have to disconnect the heater hoses right at the heater core and flush the core by it self. I have done this numerous times with good results.

Dec 06, 2009 | 2000 Ford Taurus

1 Answer

Heater not working (no heat)


If u have issues with heatting may be this will help.

1- If the carpet under the heater core is damp, or if antifreeze vapor or steam is coming through the vents, the heater core is leaking.Remove it and install a new unit (most radiator shops will not repair a leaking heater core.

1 - If the air coming out of the heater vents isn't hot, the problem could stem from any of the following causes:
  • The thermostat is stuck open, previnting the engine coolant from warming enough to carry heat to the heater core. Replace the thermostat.
  • There is a blockage in the system, Preventing the flow of coolant through heater core. Feel both heater hoses the firewall. They should be hot.if one of them is cold, there is an obstruction in one of the hoses or in the heater core,or the heater control valve is shut. Detach the hoses and back flush the heater core with a water hose. If the heater core is clear but circulation is impeded, remove the two hoses and flush them out with a water hose.
  • If flushing fails to remove the blockage from the heater core, the coremust replaced.

Nov 19, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

No heat


HEATER CONTROL VALVE IS NEXT.ARE YOU SURE THE ANTI FREEZE IS UP TO LEVEL WHEN THE TRUCK IS WARM.

Jan 24, 2009 | 1998 Ford F150 Regular Cab

1 Answer

No heat after changing thermostat.


remove the heater core lines the two hoses that go to the heater core, take a splice tube either metal our plastic your part store will have either one. take the splice tube and install it in one of the lines add some hose to that tube make the hose long enough to run out side of the engine compartment and on to the ground. take the other hose and install a flushing tee, hook up to a garden hose and trun the water on . what you are trying to do is flush the heater core , you are also looking for blockage off the heater core, if you little to no flow i would suggest replaceing the heater core

Dec 16, 2008 | 1991 Ford Escort

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