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Heater Core Removal

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like you're talking about the heater control valve
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
ADMARTI1
  • MEMBER
  • 2 POSTS
  • 1998 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
How do you install a heater core?
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
ADMARTI1
  • MEMBER
  • 2 POSTS
Duh, I thought you would tell me.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
THOMASED
  • MEMBER
  • 2 POSTS
  • 2000 DODGE DURANGO
  • V8
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
Where is the heater core located on this vehicle?
Is there a valve that controls the hot water flow to the core? If so where is that?
There is minimal heat comming from the heater. I have replaced the thermostate twice. The water pump and fan clutch and cleaned the radiator. The truck does not overheat or leak/use water. Any ideas?
Thank you
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Two heater hoses going into the firewall
remove them and flush the heater core
you can run water and comp. Air throw one side out the other and vice versa
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
MEXICO HAYDEN
  • MEMBER
  • 2 POSTS
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
OLDTECH2
  • MECHANIC
  • 64 POSTS
Heater core located in with the ac evaporator on the right side of the dash/firewall.

I'd try flushing it first. Check the flow thru the core. There is a valve under the dash that has a butterfly in it. You'll have to disassemble the dash to get at it.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
MO2ROSO2
  • MEMBER
  • 2 POSTS
  • 2000 DODGE DURANGO
  • 108,000 MILES
Very low coolant flow through the heater core(i disconnected the heater core discharge and started the engine.)When I ran the garden house through it the flow was excellent. I'm looking for a "try next". Maybe a clog in the hoses? Water pump? New belt? Thermostat and coolant level are good btw.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,945 POSTS
Your test method isn't accurate. There is no pressure pushing the coolant when you remove one heater hose. It is just as necessary to have some "pull" on one hose as it is to have the "push" on the other one. Instead, feel the hoses after the engine has been running a while. They should be too hot to hold onto for very long. If they're not, suspect the thermostat.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
MO2ROSO2
  • MEMBER
  • 2 POSTS
Ok that makes sense. The inlet hose to the heater core gets hotter than the outlet hose. Neither one gets as hot or close to as hot to the radiator house.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
XXREYNOLDSXX
  • MEMBER
  • 1 POST
  • 2000 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
Where is the heater core located on a 2000 dodge durango 5.9 4x4 I tried to look it up but no luck
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Under the dash, yes it all has to come off, if you have no experience with vehicles take it in, expensive at a dealership about 5-7hours
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
WILHITERW
  • MEMBER
  • 1 POST
  • 1999 DODGE DURANGO
  • 5.2L
  • V8
  • 4WD
  • AUTOMATIC
  • 137,000 MILES
I was wondering if I could somehow disconnected where I don't have heater or AC so we don't have it leaking anymore.
I do not have the money to replace it at the time
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,945 POSTS
Pull the rubber hoses off and connect them together with a tubing connector from the plumbing department of your local hardware store, or the "tee" from a cooling system flushing kit.
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Monday, January 7th, 2019 AT 6:26 PM (Merged)
Tiny
JEFFS22
  • MEMBER
  • 3 POSTS
  • 1999 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Recently I replaced the heater core using a new core from AutoZone. It was larger than the the $225 one from the Dodge dealer but only cost around $30.

The heat to the rear now comes out very cold and the front comes out hot.

Any help would be greatly appreciated. As you know this was a long tedious job.
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Monday, January 7th, 2019 AT 6:27 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi
Only thing I can think of would be the air duct to rear is not on or in place. Heat comes from front and taken into rear via air duct. Do you have optional rear A/C?
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Monday, January 7th, 2019 AT 6:27 PM (Merged)
Tiny
JEFFS22
  • MEMBER
  • 3 POSTS
Yes, there is the optional rear a/c. The problem seems to be that the water circulates through the heater but does not have the pressure to reach the rear which is an uphill run.

The dealer told us that we must use the OEM part not the aftermarket part. The aftermarket part is not the low-profile type that came out of the car and the design looks different. Auto Zone states that this heater core will work and the size difference is just a slight inconvenience when installing.

Please let me know if you need more info or if you have heard of this problem before.
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Monday, January 7th, 2019 AT 6:27 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Description Mitchel Manual has of your car is the warmed air travels to back not any water. Do you have hoses running to rear?
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Monday, January 7th, 2019 AT 6:27 PM (Merged)
Tiny
JEFFS22
  • MEMBER
  • 3 POSTS
There is an aluminum line that goes to the back heater A/C. It looks to me like there is a seperate heater unit in the back of the car (on top).

I beleive they require different pressure for the front and rear but from the same heater core.

It worked fine with the original part but not the Auto Zone Heater Core.

Is this something you are familiar with?
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Monday, January 7th, 2019 AT 6:27 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Checked with a chrysler tech I know he said the same something about the BTU of core and aftermarket don't have enough? Asked if any trouble getting it to fit and did you insulate? Metal line is freon line to rear AC
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Monday, January 7th, 2019 AT 6:27 PM (Merged)

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