Question about 1999 Ford Explorer

1 Answer

Leaking heater core in a 1999 Ford Explorer.

I need to know how you replace the heater core , and if the dashboard has to be removed to do this.

Posted by on

  • 2 more comments 
  • terristoffer Feb 24, 2009

    Hi! mike4671, Thanks so much for responding. I have, had it to two auto mechanics, one told me, they would have to remove the dashboard, and it would cost me $420.00, and the other mechanic told me the same thing, and he would charge me $600.00. I am unemployed right now, so I am a tight budget!! But I do want to have it fixed right. I really did not want to have the dashboard removed, unless, there is no other way to replace the heater core. Thank you so much, for your help. terris4183

  • terristoffer Feb 24, 2009

    Great Idea! Thanks so much!!!!!

  • Anonymous Mar 16, 2014

    how do I replace the dashboard lights on a 1999 ford explorer

  • Anonymous Mar 19, 2014

    how do I remove the heater core



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 90 Answers

This is real easy -- the heater core is under the passenger side of the dash --- should be able to replace without removing the dash -- might have to remove part of the glove box

Posted on Feb 24, 2009

  • mike4671 Feb 24, 2009

    buy a service manual from local auto parts store and you can install yourself and save the money---its not hard to install



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

3 Answers

How come when I start up my 1999 Cadillac deville I smell antifreeze real strong through the vents ? Is something wrong?

The heater core may be leaking / faulty - not familiar with Cadillacs, but normally it is located inside the car, behind the dashboard (glovebox) on the passenger side (near the blower motor). This may be something for a mechanic to diagnose if you are not familiar with automotive heating/cooling systems.

Mar 02, 2017 | 1999 Cadillac DeVille

1 Answer

1999 ford Expedition heater core removal

If the hose is leaking at heater hose,maybe heater core is bad,here's a repair guide to the heater core and hose.

Dec 22, 2012 | 1999 Ford Expedition

1 Answer

Replace heater core

    • Drain the cooling system. Draining the cooling system will prevent toxic engine coolant from leaking into the passenger cabin of the vehicle during removal of the heater core. To drain the cooling system, simply disconnect the lower radiator hose from the radiator by loosening the hose clamp and pulling the hose off. Be sure to drain the fluid into a sealable container and dispose of the coolant at an appropriate disposal site.
    • 2Pull the dashboard six inches rearward. In order to do this, you must remove the following parts; the center dash bolt (located under the defroster vent cover), the bolts under the driver and passenger kick boards, the bolt connecting the dashboard to the radio mount, and the the bolt connecting the dashboard to the rear of the glove box. The locations of these bolts are immediately apparent upon looking under the dash. Once you have removed these bolts, you can pull the dashboard rearward and secure it.
    • 3Remove the heater core box. The heater core box is a black plastic box that surrounds the heater core. This part should be visible when looking down into the dashboard from the passenger side seat. Remove the two bolts on top holding it to the firewall and another on the bottom near the foot well. After removal of these bolts, the heater core and box are attached to the vehicle only by the coolant lines, which you can now disconnect by reaching into the box and pulling them off of the heater core (you may have to loosen the clamps first).
    • 4Install the new heater core. This is accomplished by applying steps 1 through 3 in reverse order; re-connect heater core coolant line, re-install heater core box (be sure to apply silicon sealant to the edges of the box, hermetically sealing it), replace the dashboard and install bolts, and re-fill the cooling system.

Oct 22, 2012 | 1999 Chrysler 300M

1 Answer

Steam slowly coming out of passenger side vent.Smells like antifreeze.dont see nothing leaking.If heating core how hard to replace.

The heater core is located behind the dashboard, on the passenger side. Steam from the vent and an antifreeze smell is a decimate sign that the heater core is leaking and needs replacement.
The procedure for removal and installation varies depending on your make and model, your profile says only "ford cars and trucks" so I can't say off the top of my head if your vehicle is an easy job or a hard one.
A simple instalation would involve removing only an access panel under the dash and maybe the glove box door. Difficult ones can require removal of the entire dashboard.
Look through a repair manual for your make and model (available at almost any parts store) to see how your heater core is accessed and decide if you can do the job yourself. Good luck.

Mar 06, 2011 | Ford F-150 Cars & Trucks

1 Answer

Heater core removel 1996 ford explorer

The dashboard will need to be removed and then the a/c plenum,once the plenum is removed it must be disassembled to remove the heater core.

Sep 21, 2010 | 1996 Ford Explorer

2 Answers

Smoke coming from a/c vents on ford expedition with sweet smell

The problem is the heater core leaking behind the dashboard. Heater Core Removal & Installation 1997-2002 To Remove:
NOTE: Heater core must be vacuum leak tested before it is remove from vehicle if a heater core leak is suspected.
  1. Drain engine coolant.
  2. Remove instrument panel.
  3. For 5.4L (4V), if quipped, remove junction splash shield.
  4. For 5.4L (4V), if quipped, disconnect starter relay cable. ford-03-00-3579.gif

  5. For 5.4L (4V), if quipped, remove junction block bracket.
  6. Clamp inlet and outlet heater hoses.
  7. Disconnect heater hose from heater core by gently pressing it toward heater core.
  8. Remove A/C plenum demister adapter.
  9. Disconnect vacuum line.
  10. Remove 13 plenum chamber top screws.
  11. Remove blend door assembly from case.
  12. Remove heater core.
To Install:
NOTE: If needed, clean and lubricate coolant hoses with plain water.

  1. Install heater core.
  2. Install blend door assembly to case.
  3. Install 13 plenum chamber top screws.
  4. Connect vacuum line.
  5. Install A/C plenum demister adapter.
  6. Connect heater hose to heater core.
  7. Release all clamps from inlet and outlet heater hoses.
  8. For 5.4L (4V), if quipped, install junction block bracket.
  9. For 5.4L (4V), if quipped, connect starter relay cable.
  10. For 5.4L (4V), if quipped, install junction splash shield.
  11. Install instrument panel.
  12. Refill engine coolant.
prev.gif next.gif

Aug 17, 2010 | 1999 Ford Expedition

1 Answer

Heater core leaking,and want to know location and how to get it out

Lcation is underneath the dashboard, and to remove it, is very difficultImage Not Available

';" src="" onload="OnImageLoad();" border="0" />
If you really dont need it, just unhhook the heater by pass hoses, and cap them off...But you basically have to remove the dashboard to get to it..It is in the same casing with your evaporator...Goodluck..

Dec 07, 2009 | 1996 Ford Thunderbird LX

2 Answers

Heater core

It is not easy. you have to remove the old heater core under the dashboard.First you remove the hoses at the firewall going into the cab.You have to drain the coolant and be careful not to spill it when the core is removed. Then you remove the core which is attached with some small bolts and screws. It is uncomfortable to say the least. But it can be done . Did you try to flush out the old heater core ? Sometimes you can flush out the heater core by removing the hoses from the heater core attachment lines . Not the ones to the firewall. See which one is the inlet and the outlet. Run a hose with a good amount of preassure not a lot. you don't want to rupture the core. Run the water into the inlet and it will come out the outlet hose. Flush it to remove all debris until all you see is clear water coming out.Then reverse the hoses and place the hose on the outlet and it will come out the inlet. If the core is leaking you will see a wet spot in the carpet under the dash. Then the heater core has to be replaced.

Jan 11, 2009 | 1998 Ford Explorer

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

579 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

77544 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

5636 Answers

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

Answer questions

Manuals & User Guides