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Heater core metal hoses

How do you disconnect the heater core metal hoses from the heater core in a 1999 jeep cheroke classic?

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Hi I'm Peter, Curious as to why you said metal hoses as most heater cores have metal pipe inlet and outlets that protrude out of the firewall and then the rubber heater hoses are connected to them. I may have to go look that one up but my question is are you taking the heater core out, and if so have you already take the dash area out to access the heater core? Let me know and I'll see what I can do to help but right now I am wondering if you might be talking about the transmission coolers metal lines. Sorry I'll wait on your response.

Posted on Apr 18, 2014


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SOURCE: 1999 chev 2500 heater core

not so quick hu--push squeeze & turn yor may have to replace when old its difficult

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SOURCE: Heater Core replacement

yes you do have to disconect the a/c dash removal for jeep.hope this helps

Posted on Oct 04, 2009

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SOURCE: how do you install a heater core in a 1999 jeep

I suggest review the ZJSecc24-Heating-and-Air-Conditioning

First you'll need remove the heater A/C unit from the vehicle; after, remove the heater core retaining screws, and finally, pull the heatrer core straight out of the housing.

Hop helped with this (remember rated this help) Good luck.

Posted on Nov 30, 2009

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SOURCE: Can I flush out the heater core on my 98 Jeep

Sure, just cut pressure back if you have a lot of pressure in that hose, as your system usually runs 15-20 psi. You'll be ok, as long as one side is open. Make sure you reverse flush as well, it helps dislodge debris. If you plug lower tube, attach a hose to other, and use a funnel on that hose, or hold it up high, and pour CLR into core, and let it sit in there for a while, it will help loosen up calcium etc, that builds up inside core, before you flush it out. Just a suggestion, but I've done it on several to increase flow through core when idling to increase temperature in vehicle at idle.

Posted on Dec 21, 2009

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How do i fix the heater in a 1999 dodge dakota sport i was told i have to drop the steering colomn and dashboard.

Before resorting to replacing the heater core, first verify that the thermostat in the engine is operating properly. Sometimes the thermostat will stick in the open position. When this happens, the coolant does not get hot enough to provide sufficient heat. Also check to make sure that the heater core is not clogged up with rust or other debris. You can do this by disconnecting the heater hoses from the heater core [done from under the hood]. Place a garden hose against the upper metal tube and turn on the hose. Water should come out the lower hose without a lot of restriction. If debris or rust comes out with the water, flush the heater core out, using the hose, until there is no debris and no restriction in the heater core.
Replacing the heater core is a big job. I would suggest that you entrust this to a pro, unless you have lots of experience working on cars. The video linked below gives an outline of what is involved. See

Changing Heater Core in 1999 Dodge Dakota

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I have a 1999 jeep grand cheroke my heater core is leaking I try stop leak it doesn't work any other option instead replace my heatercore??

I would just have the heater core replaced. One common theme with all repairs that are temporary, is ... well, "temporary" can mean "all of three seconds". All the stop leak gunk and whatnot will typically block your heater core up, making you replace it anyway if you want heat. Or you could take the heater core out of the loop, get an adaptor and plumb the heater lines together.

Jan 17, 2011 | 1999 Jeep Grand Cherokee

1 Answer

Had heater disconnected...need to hook it back up. anyone know how?

There are two heater hoses, each appx. 1 inch wide, that run from the engine and hooks up to the heater core, behind your dashboard. The heater core's two connection pipes stick out from the firewall of your jeep and you have to attach the two heater hoses to those two pipes. If someone disconnected your heater, they probably just joined together the two heater hoses, that run from your engine, so now you'll have to disconnect that joining and reattach the hoses to the heater core pipes. That way, hot coolant will flow into the heater core to warm you up.

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How do i replace a heater core in a 1999 cadillac deville


Here is detailed solution on how to replace the heater core in the 1999 cadillac deville;

STEP 1 Disconnect the negative battery cable.

STEP 2. Drain and recycle the engine coolant.

STEP 3. Disconnect the heater core hoses using tool J-37097 or an equivalent.

STEP 4. Remove the right side sound insulator and the glove box module.

STEP 5 Remove the programmer shield, if equipped, and disconnect the air mix valve link.

STEP 6 Disconnect the programmer vacuum and electrical connectors.

STEP 7 Remove the heater core cover, leaving the programmer attached.

STEP 8 Remove the heater core retaining screws and the heater core.

have a nice day..

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1999 cherokee sport, no heat- new thermostat and coolant help its cold outside

check the water control valve in the heater hose inline to the heater core

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1 Answer

Heater Core in Jeep Grand Cherokee 1999

Unfortunatly, those are the classic symtoms of a bad
heater core. But just to be sure, check the heater hoses at the firewall and make sure that a loose clamp is not allowing coolant to spray into the car.
I don,t know what the part costs, you can find that out by calling autozone/napa or any parts store.
But there probably will be a slight markup by who ever is to do the job. As for the labor, the book allows
5.9 hours for the job. This will give you a place to
start when you check around for the best price.
If you have a mechanic that you use often(and trust)
ask him/her what it will cost. It's not strictly dealer.
Hope this helps.

Feb 28, 2010 | 1999 Jeep Grand Cherokee

1 Answer

1984 Jeep CJ7 heater core leaking. '93 inline 6 motor. Wrangler dash. How to I remove the core?

  1. Disconnect battery ground cable and drain cooling system.
  2. Disconnect heater core hoses.
  3. Disconnect damper door control cables.
  4. Disconnect blower motor electrical connector.
  5. Disconnect water drain hose and defroster hose.
  6. Remove nuts retaining heater housing assembly to instrument panel. Remove heater housing assembly by tilting heater downward to disengage it from air inlet duct and pulling toward rear of vehicle.
  7. Remove heater core from heater housing.
  8. Reverse procedure to install.

Nov 17, 2009 | 1984 Jeep CJ7

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How do i change heater core in 1999 dodge caravan?

Big job.
Remove the dash. The heater-core is behind the center console.

Oct 25, 2009 | 1999 Dodge Grand Caravan

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How to replace heater core in a 1988 jeep cherokee?

Jeep Cherokee XJ Heater Core

Work for '92 models, but can use it like a reference guide.


Figure 1

  1. Disconnect battery ground cable, then drain cooling system.
  2. Disconnect hoses from heater core.
  3. If equipped with A/C, remove evaporator/blower housing as follows:
    1. Discharge A/C system, then disconnect hoses from expansion valve.
    2. Disconnect electrical connector and vent tube from blower motor.
    3. Remove console, if equipped.
    4. Remove lower instrument panel attaching screws, then the lower panel.
    5. Disconnect electrical connections from A/C relay, blower motor resistors and A/C thermostat.
    6. Disconnect vacuum hose from vacuum motor.
    7. Cut evaporator/blower housing to heater core housing retaining strap, then disconnect heater control cable.
    8. Pry retaining clip from rear of blower housing flange, then remove the three retaining screws.
    9. Working from engine compartment, remove evaporator/blower housing attaching nuts, then the evaporator drain tube, Figure 1.
    10. Remove right kick panel, then the instrument panel support bolt.
    11. Pull right side of dash outward, then rotate housing downward and towards rear of vehicle until studs clear dash panel. Remove housing from vehicle.
  4. Remove heater core to housing retaining screws, then the heater core, Figure 2.
  5. Reverse procedure to install.

Figure 2

Personally, I'd pressure test the cooling system then look at the heater core to see if it leaks. It may just be a loose clamp or leaky hose.

Also can check the forum

I hope help you; good luck (remember rated this).

Sep 15, 2009 | Jeep Cherokee Cars & Trucks

4 Answers

Heater core

You have to pull the dash and all the lower fascia, then remove the box that houses the Heater Core Take the clamps off the heater hoses from the engine compartment side of the firewall and disconnect the heater hoses. Disconnect the bracket that holds the heater core in place from the inside of the passenger compartment (if present.) Carefully remove the heater core and discard it. Install a new heater core reversing the above steps.

Oct 18, 2008 | 1988 Chevrolet Cavalier Z24

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