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  1. #1
    Join Date
    Jun 2006
    Posts
    194

    Default Heater Not Working

    Hey guys,

    I have a 2004 LS with 750 hrs. Today my heater stopped working, the blower fan still works in both low and high settings but the air coming thru is not hot. I did a search and found all problems that others have had with thier heaters involves a leak and replacement core. The difference with mine is I do not have a leak. Would this still be a core replacement issue?

  2. #2
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    2,232

    Default

    Have you ever changed your thermostat? Did your engine temp register 160? There may be a blockage in your core remove the hoses and see if they are patent. If your not over heating then i would think you have a blockage thats preventing water from circulating thru it imo
    09 21v LAUNCH

    99 Outback LS. Sold


    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  3. #3
    Join Date
    Jun 2006
    Posts
    194

    Default

    I have never changed my thermostat, my guage was reading the usual temp, just over 160. It is interesting when I was out yesterday some one had one of the hoses and said it was not very hot, then got hot.....maybe some sort of blockage is possible?

    Also I run a closed loop cooling system, not sure if this changes things.

  4. #4
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    2,232

    Default

    where are you located, disconnect the hoses and see if you can easily blow thru one, is it oem heater?
    09 21v LAUNCH

    99 Outback LS. Sold


    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  5. #5
    Join Date
    Jun 2006
    Posts
    194

    Default

    I am in Vancouver. It is the heater that came with the boat from the factory, I will try to remove the hoses tomorrow.

  6. #6
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    2,232

    Default

    were you idling at the time? in cold water,idling , the heater may do that. Will heat up again when under way
    09 21v LAUNCH

    99 Outback LS. Sold


    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  7. #7
    Join Date
    Jun 2006
    Posts
    194

    Default

    I was not idling...

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