Question about 1999 Ford Expedition

2 Answers

I have a 98 ford experdition and the heat will not get hot.

All of the controls on the engine is working properly. Meaning by that the temperature control is working letting me know that the motor is hot and it is time to turn the heat on. The blower is working and changing as I turn the knob for temperature control. I had the thermostat changed and the heater coil blew out in case it was plugged. I also had the control knob change and the heat still will not get hot. Please help.

Posted by on

  • tcarter0719 Feb 07, 2009

    Thank You so much for the fast respond. I have been reading that it could be the water pump, radiator leaking, or even something about vacuum hoses too. I will start with the cheapest fix and move on threw the whole list. I will let you know the outcome.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Ford Master
  • 783 Answers

I would say that it is probably the water pump. I have run into 3 of these on these models this year. They do not overheat however when hooking flow meter up to measure the coolant flow they barely move the meter. Pulled the pump of and found the fins either loose from the pump or the fins worn out.

Posted on Feb 07, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 104 Answers

First find the two hoses that go from the engine to the firewall and subsequently the heater core. If they are both hot, there is flow through the core. So given your statement above this leaves the control device that modulates the air temp delivered to the cab of the car. This is done by blending fresh and hot air coming from the heater core. Listen for the sound of a vacuum leak from under the dash. Most likly bad hose or bad vacuum actuator.

If Defroster controls do not change air fow to the windshield, check for vacuum supply to the whole system so look for a vacuum leak in the engine area as well,

good luck

Posted on Feb 07, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

1999 ford expedition , runs good doesn't overheat , but puts out no heat ?


heater core might need replaced . check the hoses going to it under the hood after it gets to operating temperature .One should be hot and the other not so much

Nov 19, 2015 | Ford Cars & Trucks

1 Answer

No heat in car?


The engine might not be running hot enough, The water pump might not be working properly, The radiator cap might not be sealing properly, The temperature control or climate control are not working properly

Nov 09, 2015 | 2002 Ford Explorer

1 Answer

Very little heat on cold mornings, more heat later in day


When the engine is warm, and running, feel both heater hoses. They should be equally hot if the water valve is open. If they are unequal, then it is a water control problem. If both hoses are hot, the ductwork is not routing the heat under the dash properly.

If you have a temperature gauge in the dash, you would be getting heat if the engine shows normal. A thermostat may be needed if you have no water gauge and you do not know if the engine is hot enough.

Jan 10, 2014 | 1998 Ford Ranger SuperCab

1 Answer

No heat


Hi James, If we're talking about the radiator for cooling the engine, check the thermostat and water pump. If we're talking about the cabin climate control, check the valve operation of the cabin temperature control. Regards John

Nov 15, 2012 | 1997 Ford Taurus

1 Answer

Service engine light soon.CodeP0101


Here is the meaning of the code.

P0101 GMC Description The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).

The temperature of the hot film is controlled by the ECM acertain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
Read more: http://engine-codes.com/p0101_gmc.html#ixzz22j2iAwpz

Aug 05, 2012 | GMC Envoy Cars & Trucks

2 Answers

Ford Escape 2003. Engine suddenly overheat.


Engine over heating can be caused by a number of things. When you say the water pump and radiator appear to be ok I am also guessing that you checked the coolant level to make sure it is normal.

If the level is low then you obviously have a leak. Insufficient coolant circulating will not cool the motor properly because it won't be able to draw enough heat out. If the level is normal then you need to check the thermostat to make sure it is opening properly. To do this, run the motor to temperature and check the top and bottom hoses. They should both be hot and firrm once the thermostat opens meaning the circulation loop is operating properly. If the top is hot and firm and the bottom is cold/soft or collapsed then the thermostat isn't opening.

If the thermostat is operating properly then you ned to look for some other obstruction or cause for coolant loss. Check the head/intake gaskets, hose connections, hoses, over flow tank, radiator fins, radiator side tanks etc..

Good luck.

Jun 10, 2010 | 2003 Ford Escape

1 Answer

1999 F-250 very little heat. all actuators work fine, blower is fine. Just no hot air or very little


If the engine is reaching proper operating temperature, the problem is probably with a "door" or large air-valve that controls the flow of air in the heating and air-conditioning system. Many of these are operated by vacuum, so check the small rubber hoses in the engine compartment and see if one has broken or is disconnected. The problem could also be under the dashboard at the temperature control.

Jan 01, 2010 | 1999 Ford F250 Regular Cab

1 Answer

1988 Ford Exppedition heater in the front will not work


I ASSUME THIS IS A 98, THIS PROBLEM IS CAUSED BY A PART CALLED AN "AIR TEMPERATURE CONTROL BLEND DOOR ACTUATOR MOTOR" THIS MOVES A DOOR BETWEEN THE COLD AIR FROM THE AC AND THE HOT AIR FROM THE HEATER CORE, YOU WILL NEED TO REPLACE THAT ACTUATOR. .

Sep 05, 2009 | 1998 Ford Expedition

1 Answer

98 Ford Experdition V8-281 4.6L SOHC-the heat will not get hot.


Have you tried replacing the heater core ? If the flushing of the heater core did not work, the heater core may be bad. Very clogged with gunk and residue. did you try to check the valve that opens the hoses to the heater core. This valve can be vacuum, opened by cable or electric. Check to see if the hoses get hot at the firewall. they should be hot.

Feb 07, 2009 | 1999 Ford Expedition

2 Answers

98 ford wind star running hot


Warm the engine up to operating temperature. Does the upper radiator hose get warm? If no, then cange the thermostat. If yes, then the thermostat is working fine. On the thermostat housing, there is a sensor. Some engines have 2 sensors. One goes to the computer and the other goes to the temp needle in the dash. Unplug the harness and put a jumper wire in the harness. Turn the key to on, and see if the temp needle goes up. Which ever harness causes the needle to go up, replace that sensor. Hope this helps.

Dec 09, 2008 | 1998 Ford Windstar

Not finding what you are looking for?
1999 Ford Expedition Logo

352 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...