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Heater hoses

Tiny
ESYLIVIN7117
  • MEMBER
  • 2002 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Where are the 2 heater hoses located on the vehicle listed above with a 4.6L?
Friday, December 24th, 2010 AT 7:38 PM

13 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/replace-heater-hoses

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Monday, December 14th, 2020 AT 10:30 AM
Tiny
RONNIEPROCK77
  • MEMBER
  • 3 POSTS
  • 2000 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Remove heater hose clamp.
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Do you have a picture you can post? There is all kinds of different clamps some take a special tool to remove even.
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
RONNIEPROCK77
  • MEMBER
  • 3 POSTS
Did you receive the picture for the removal of the clamp for the heater hose?
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I do not see it posted here to this question. Can you post it here?
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
RONNIEPROCK77
  • MEMBER
  • 3 POSTS
I do not think that my phone is allowing me to send one for some reason, but it is round with a plastic tab on opposite sides I pushed them in but it did not come off. It looks like a quick release, but is it twist or something.
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
There is what the release tool looks like you might be able to rent it from auto zone.
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
NEED2KNOW123
  • MEMBER
  • 1 POST
  • 2000 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 16,300 MILES
All controls work fine, heater hoses to heater core in line is warm, out line is cold. Is the core plugged? Or do I have a bigger problem? How are the heater core in and out hoses disconnected from the core so I can flush the core if that is the problem?
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If one hose is cold, chances are the core is plugged. Remove the hoses (clamped on) and using a garden hose to see if you can force water through the core in both directions.

Let me know if this helps.
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Monday, December 14th, 2020 AT 10:30 AM (Merged)
Tiny
ROYCAR71
  • MEMBER
  • 354 POSTS
  • 1997 FORD EXPEDITION
  • 220,201 MILES
Where is inlet heater hose located to install coolant flush kit for 1997 ford expedition? Thanks in advance.
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Monday, December 14th, 2020 AT 10:31 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Here is a guide to help you change the heater hoses and diagrams below to help you see how the hoses are routed.

It looks like you must remove the inner fender well to access the heater hoses.

https://www.2carpros.com/articles/replace-heater-hoses

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Monday, December 14th, 2020 AT 10:31 AM (Merged)
Tiny
ROYCAR71
  • MEMBER
  • 354 POSTS
Well, unlike my jimmy. I see 2 hose that come from firewall. Then they have 3 way tees with both ends going back into firewall. Presumbly, to evaporator. The parts of tee's for both line go all the way down to underbody supposing going to back of car. Is there a way can tell if engine is running one hot or cold. Etc?

P.S this is 1997 ford expedition 5.4L 2wd. Both heater hose look like pic attached to this response
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Monday, December 14th, 2020 AT 10:31 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I would install the flush kit into the in going heater hose closest to the engine
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Monday, December 14th, 2020 AT 10:31 AM (Merged)

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