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Replacing heater core in 1995 jeep grand cherokee

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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ZJLimited
  • 17970 Answers

SOURCE: how to remove heater core

Is a typical case, but we can use like a general method:
First remove all the water from your system by draining the radiator, it's best to do it this way so you can add new coolant and keep the mess to a minimum, after your water is drained, go ahead and remove the heater core feed lines.

  1. Remove top of dash pad, do this by removing several screws located under the foward lip of the pad, don't forget the screws in the defroster vent holes!
  2. Remove the lower trim panel from the underside passenger side dash ( if there is one there)
  3. Look under the dash on the passenger side and you will see the plastic box in which houses the heater core, remove all the screws that surround this box, there will be one screw on the top that will be very difficult to get at, this is why you have removed the top of the dash so you can get at it with two hands,if you need to see this screw get outside of the car and look down at the dash from the passenger side and then your going to have to depend on feeling with your hands.
  4. At this point you should have the plastic box off and now your looking directly at the heater core, the core is held in place by a steel clamp fastened with screws, remove these screws, and remove the clamp.
  5. Now it's time to remove the heater core , get some plastic sheeting and lay it around the passenger foot well because there going to be some water in the core yet, pull it out gently, you might have to wiggle and gently pull, take your time, it should come out fairly easy.
  6. Once you have the old core out, it's time to install the new one, I can't tell you how important it is at this point to be very patient when installing the new core, you may have to slightly bend the new core tubes to get them through the firewall, you may end up taking it out a couple of times BE CAREFULL!!!!!!
  7. Once you have sucessfully got the core in place, install the core clamp, then re-assemble

Make sure that after you have installed everything and you fill your system with water, slide your heat temp control to full heat the check everything for leaks!


For the specific case, Grand Cherokee, check this info, maybe the answer are in there: ZJ Secc 24 Heating and Air Conditioning (Page 41 and Next)

Good luck!!!

Posted on Oct 20, 2008

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LEFTY64
  • 69 Answers

SOURCE: Need to replace the heater core in a 1995 Dodge Grand Caravan SE

1991-95 Models

  1. Disable the air bag system by disconnecting the negative battery cable.
  2. Have the system discharged by a qualified professional mechanic using an approved recovery/recycling machine.
  3. Drain the cooling system.
  4. Remove the steering column cover and left and right side under panel silencers.
  5. Remove the center bezel by unclipping it from the instrument panel.
  6. Remove the accessory switch carrier and the heater/air conditioning control head.
  7. Remove storage bin and lower right instrument panel.
  8. Disconnect the blower motor lead under the right side of the instrument panel.
  9. Remove the right side 40-way connector wiring bracket.
  10. Remove the lower right reinforcement, body computer bracket and mid-to-lower reinforcement as an assembly.
  11. Disconnect the vacuum lines at the brake booster and water valve.
  12. Clamp off the heater hoses near the heater core and remove the hoses from the core tubes. Plug the hose ends and the core tubes to prevent spillage of coolant.
  13. If equipped with air conditioning, remove the H-valve and condensation tube.
  14. Disconnect the temperature control cable and vacuum harness at the connection at the top of the unit.
  15. Remove the retaining nuts from the package mounting studs at the firewall. Disconnect the hanger strap from the package and rotate it aside.

To install:
  1. Remove the temperature control door from the unit and clean the unit out with solvent. Lubricate the lower pivot rod and its well and install. Wrap the heater core and/or evaporator with foam tape and place in position. Secure with the screws.
  2. Assemble the unit, making sure all vacuum tubes are properly routed.
  3. Install the assembly to the vehicle and connect the vacuum harness. Install the nuts to the firewall and install the condensation tube. Fold the carpeting back into position.
  4. Connect the hanger strap from the package and rotate it aside. Install the 2 brackets supporting the lower edge of the heater housing. Connect the blower motor wiring, resistor wiring and the temperature control cable.
  5. Install the retaining screws from the right side to the steering column. Install the instrument panel trim covering and reinforcement.
  6. Assemble the unit, making sure all vacuum tubes are properly routed.
  7. Install the assembly to the vehicle and connect the vacuum harness. Install the nuts to the firewall and install the condensation tube. Fold the carpeting back into position.
  8. Connect the hanger strap from the package and rotate it aside. Connect the blower motor wiring and temperature control cable.
  9. Install the lower right reinforcement, body computer bracket and mid-to-lower reinforcement as an assembly.
  10. Install the right side 40-way connector wiring bracket.
  11. Install the lower right instrument panel and storage bin.
  12. Install the heater/air conditioning control head and accessory switch carrier.
  13. Install the center bezel to the instrument panel.
  14. Install the under panel silencers and steering column cover.
  15. Install the vacuum lines at the brake booster and water valve.
  16. Connect the heater hoses to the core tubes.
  17. Using new gaskets, install the H-valve and connect the refrigerant lines. Install the condensation tube.
  18. Have the system evacuated and recharged by a qualified professional mechanic, utilizing the proper equipment. Add 2 fl. oz. (59 ml) of refrigerant oil during the recharge. Fill the cooling system.
  19. Perform the Air Bag System Check procedures outlined in this section before connecting the negative battery cable.
  20. Connect the negative battery cable and check the entire climate control system for proper operation and leaks.

Posted on Apr 08, 2009

  • 45 Answers

SOURCE: Heater Core replacement

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

Posted on Oct 04, 2009

ZJLimited
  • 17970 Answers

SOURCE: heater core

You need review details in the Service Section-24-Heating-Air-Conditioning and Section-24a-Heating-Air-Conditioning

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

Posted on Nov 12, 2009

ZJLimited
  • 17970 Answers

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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