How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mark Your Own Question
Mark, 22 Year Factory trained technician
Category: Jeep
Satisfied Customers: 11332
Experience:  Jeep factory training........25 years in the industry.
Type Your Jeep Question Here...
Mark is online now
A new question is answered every 9 seconds

how to remove heater core on 1997 jeep wrangler

Customer Question

how to remove heater core on 1997 jeep wrangler
Submitted: 8 years ago.
Category: Jeep
Expert:  Mark replied 8 years ago.
  1. Disconnect and isolate the battery negative cable.
  2. Remove the instrument panel assembly as described in Instrument Panel Systems.
  3. If the vehicle is not equipped with air conditioning, go to Step 5. If the vehicle is equipped with air conditioning, recover the refrigerant from the refrigerant system as described in this group.
  4. Disconnect the refrigerant lines from the evaporator tubes. Install plugs in, or tape over all of the open refrigerant fittings.
  5. Drain the cooling system. Refer to Cooling System for the procedures.
  6. Disconnect the heater hoses from the heater core tubes.
  7. Disconnect the heater-A/C system vacuum supply line from the tee fitting near the heater core tubes.
  8. Remove the five heater-A/C housing mounting nuts from the studs on the engine compartment side of the dash panel Loosen the battery holddowns and reposition the battery for access, if required.
  9. Remove the cowl plenum drain tube from the stud directly behind the engine.
  10. Remove one screw securing the heater-A/C housing to the bracket on the dash panel.
  11. Pull the heater-A/C housing rearward and down far enough for the mounting studs to clear the dash panel holes and the housing to clear the defrost/demist and fresh air ducts.
  12. Remove the heater-A/C housing from the vehicle.