Saturday, November 20th, 2010 AT 3:13 PM
DOCDRYWALL
- MEMBER
- 1997 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
How to replace a heater core?
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Heater core replacement
30 Replies
BLUELIGHTNIN6
- MECHANIC
- 16,542 POSTS
Hello,
You will need to start by disconnecting the battery and vacuuming down the AC system here is a guide to help you get started with the job.
https://www.2carpros.com/articles/re-charge-an-air-conditioner-system
and
https://www.2carpros.com/articles/replace-heater-core
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Cheers
You will need to start by disconnecting the battery and vacuuming down the AC system here is a guide to help you get started with the job.
https://www.2carpros.com/articles/re-charge-an-air-conditioner-system
and
https://www.2carpros.com/articles/replace-heater-core
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Cheers
Images (Click to make bigger)
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Sunday, November 21st, 2010 AT 12:59 PM
WHITECHICK30
- MEMBER
- 3 POSTS
- 1997 FORD EXPEDITION
Heater problem
1997 Ford Expedition V8 Automatic
I just replaced my heater core and thermosat but I am not getting any hot air what will cause that?
1997 Ford Expedition V8 Automatic
I just replaced my heater core and thermosat but I am not getting any hot air what will cause that?
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+2
Friday, November 9th, 2018 AT 5:33 PM
(Merged)
DOCFIXIT
- MECHANIC
- 18,828 POSTS
Air traped in system or blend door malfunction
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-1
Friday, November 9th, 2018 AT 5:33 PM
(Merged)
EMORSE
- MEMBER
- 4 POSTS
- 1997 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
- 140,000 MILES
I have a 97 ford expedition that I have replaced the heater core in the front 2 times about 6 months apart im stumped as to what could be causeing it. Any help would be great.
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
PROTECH1980
- MEMBER
- 901 POSTS
Changed it because it was leaking or because it keeps plugging up?
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
EMORSE
- MEMBER
- 4 POSTS
Its leacking almost like there is a build up of preasure. Tried flushing it both times too
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
EMORSE
- MEMBER
- 4 POSTS
I havent put the new one in yet but I will check that it said something about a nutralizer what would you ecomend to use if that is what I need?
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
EMORSE
- MEMBER
- 4 POSTS
Ok I tested the electrolysis level and I got a reading of.200 VDC
im going to clean the grounds anyway for safety but could there be anything else that would cause it
im going to clean the grounds anyway for safety but could there be anything else that would cause it
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
DOUGLAS74
- MEMBER
- 1 POST
- 1998 FORD EXPEDITION
- V8
- 2WD
- AUTOMATIC
My husband and I are trying to replace the heater core on my 1998 ford expedition. In the manual it has a picture of the whole dash taken apart. Could you please tell me if we have to take the whole dash apart or if there is another way to take the heater core out and put in the new one. I hope so becaus e it seems really hard if we have to go through all of that
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+2
Friday, November 9th, 2018 AT 5:33 PM
(Merged)
SATURNTECH9
- MECHANIC
- 30,870 POSTS
REMOVAL
Disconnect the battery ground cable.
Drain the radiator. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and Exhaust Cooling System Service and Repair
Remove the instrument panel. Refer to: "Body and Frame : Interior Trim : Dash Board : Service and Repair" See: Body and Frame Interior Moulding / Trim Dashboard / Instrument Panel Service and Repair
Compress the holding tabs and disconnect the heater water hoses at the heater core.
Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.
Disconnect the vacuum line.
Remove the heater core bracket.
1 Remove the two screws.
2 Remove the bracket.
Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.
Remove the blend door assembly from the case.
Remove the heater core.
Looks like you do they charge over 7hr's labor to do it so it's a big job.
Disconnect the battery ground cable.
Drain the radiator. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and Exhaust Cooling System Service and Repair
Remove the instrument panel. Refer to: "Body and Frame : Interior Trim : Dash Board : Service and Repair" See: Body and Frame Interior Moulding / Trim Dashboard / Instrument Panel Service and Repair
Compress the holding tabs and disconnect the heater water hoses at the heater core.
Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.
Disconnect the vacuum line.
Remove the heater core bracket.
1 Remove the two screws.
2 Remove the bracket.
Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.
Remove the blend door assembly from the case.
Remove the heater core.
Looks like you do they charge over 7hr's labor to do it so it's a big job.
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Friday, November 9th, 2018 AT 5:33 PM
(Merged)
VIXNART
- MEMBER
- 1 POST
- 1998 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
- 90,000 MILES
I have removed all of the visible bolts, screws and clips from the dash as well as the gauges and most of the dash board pieces however the main molded part of the dash seems to have hidden anchors of some sort on both sides. I can't figure out how to remove them to access the heater core box.
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
BLUELIGHTNIN6
- MECHANIC
- 16,542 POSTS
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
KNOBBE49
- MEMBER
- 1 POST
- 1999 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
- 144,000 MILES
Estimated cost for replaceing heater core
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
B_LOCO83
- MEMBER
- 2 POSTS
- 1998 FORD EXPEDITION
Heater problem
1998 Ford Expedition V8 Two Wheel Drive Automatic
how to change the front heater core?
1998 Ford Expedition V8 Two Wheel Drive Automatic
how to change the front heater core?
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
RASMATAZ
- MECHANIC
- 75,992 POSTS
REMOVAL
1. Disconnect the battery ground cable.
2. Drain the radiator. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and Exhaust Cooling System Service and Repair
3. Remove the instrument panel. Refer to: "Body and Frame : Interior Trim : Dash Board : Service and Repair" See: Body and Frame Interior Moulding / Trim Dashboard / Instrument Panel Service and Repair
4. Compress the holding tabs and disconnect the heater water hoses at the heater core.
5. Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.
6. Disconnect the vacuum line.
7. Remove the heater core bracket.
1 Remove the two screws.
2 Remove the bracket.
8. Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.
9. Remove the blend door assembly from the case.
10. Remove the heater core.
INSTALLATION
1. Follow the removal procedure in reverse order.
1. Disconnect the battery ground cable.
2. Drain the radiator. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and Exhaust Cooling System Service and Repair
3. Remove the instrument panel. Refer to: "Body and Frame : Interior Trim : Dash Board : Service and Repair" See: Body and Frame Interior Moulding / Trim Dashboard / Instrument Panel Service and Repair
4. Compress the holding tabs and disconnect the heater water hoses at the heater core.
5. Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.
6. Disconnect the vacuum line.
7. Remove the heater core bracket.
1 Remove the two screws.
2 Remove the bracket.
8. Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.
9. Remove the blend door assembly from the case.
10. Remove the heater core.
INSTALLATION
1. Follow the removal procedure in reverse order.
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
SKYSCANNER
- MEMBER
- 1 POST
- 1998 FORD EXPEDITION
Heater problem
1998 Ford Expedition V8 All Wheel Drive Automatic
I have been helping my pastor in replacement of his heater core for this Car. I did read the other info that was found and still having problems removing the dash to get to the core. The question is do you or anyone have a better photo of the dash and the location of screws and bolt's that need's to be removed. I have never ran into such a problem in my life and this is from a man that did repairs on tanks and just about anything with wheels in the army. Now a disabled vet.
1998 Ford Expedition V8 All Wheel Drive Automatic
I have been helping my pastor in replacement of his heater core for this Car. I did read the other info that was found and still having problems removing the dash to get to the core. The question is do you or anyone have a better photo of the dash and the location of screws and bolt's that need's to be removed. I have never ran into such a problem in my life and this is from a man that did repairs on tanks and just about anything with wheels in the army. Now a disabled vet.
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
DONPEP
- MEMBER
- 1 POST
- 1999 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
- 96,679 MILES
How much does it cost to replace the heater core on a 99 expedition, at a mechanic shop?
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
RASMATAZ
- MECHANIC
- 75,992 POSTS
Note:Part and labor varies within location.
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
REGINALD NOWLIN
- MEMBER
- 3 POSTS
- 1998 FORD EXPEDITION
- V8
- 4WD
- AUTOMATIC
- 17,300 MILES
Ford 1998 Expedition heater core is bad. How do I know which one to replace?
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
WRENCHTECH
- MECHANIC
- 20,757 POSTS
What do you mean by "which one"?
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Friday, November 9th, 2018 AT 5:34 PM
(Merged)
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