Log In
Search suggestions

    My Vehicles

    1998 Honda Civic EX 1.6L MFI VTEC SOHC 4cyl

    My Store

    1720 S RIDGEWOOD A
    (386) 427-1210

    CLOSED Open at 9:00 AM

    GET A $25 GIFT CARD FOR EVERY $100 SPENT ON ONLINE SHIP-TO-HOME ORDERS.

    Use Code: GIFTME

    See Details

    Escalade, Suburban, Tahoe, Yukon, Denali, DenaliXL, YukonXL 1999-2005

    Removal & Installation

    Print


    CAUTION
    Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

    1. Drain the cooling system.
    2.  
    3. Remove the access panel nut near the pollen filter.
    4.  
    5. Remove the access panel.
    6.  
    7. Remove the following components from the hot water flow control valve:
      1. The vacuum hose
      2.  
      3. The remaining hose clamps
      4.  
      5. The remaining hoses
      6.  

    8.  
    9. Remove the hot water flow control valve.

      Click image to see an enlarged view

      Fig. Heater water control valve

    10.  

    To install:

    1. Install the hot water flow control valve.
    2.  
    3. Install the following hot water flow control valve components:
      1. The hoses
      2.  
      3. The hose clamps
      4.  
      5. The vacuum hose
      6.  

    4.  
    5. Install the access panel.
    6.  
    7. Install the access panel nut until fully seated and not stripped.
    8.  
    9. Fill the cooling system.
    10.  

    1. Drain the cooling system.
    2.  
    3. Remove the access panel nut near the pollen filter.
    4.  
    5. Remove the access panel.
    6.  
    7. Remove the following components from the hot water flow control valve:

      The vacuum hose
       
      The remaining hose clamps
       
      The remaining hoses
       

    8.  
    9. Remove the hot water flow control valve.

      Click image to see an enlarged view

      Fig. Heater water control valve

    10.  

    To install:

    1. Install the hot water flow control valve.
    2.  
    3. Install the following hot water flow control valve components:

      The hoses
       
      The hose clamps
       
      The vacuum hose
       

    4.  
    5. Install the access panel.
    6.  
    7. Install the access panel nut until fully seated and not stripped.
    8.  
    9. Fill the cooling system.
    10.  

     
    AutoZone Logo