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    Cabin Heat Issues

    Trying to figure out my heating issues. First my setup:
    mishimoto rad
    new water pump
    new 80c thermostat
    I believe the heater core hoses are hooked up correctly. Valve is on the top pipe of the heater core so that goes to the head. Bottom goes to spider. System has been bled.

    Basically having trouble with consistent heat. With the temp knob set to hot, the air coming into the cabin is a little colder than room temp but does get colder if I turn the temp knob to cold. If I immediately turn it back to hot the air will get hot for 30 seconds or so and then back to room temperature. Coolant temp is at 190 deg F through all of this but temp gauge on cluster reads just past the quarter mark on the cold side.

    #2
    i believe the top one goes to the spider
    Sticky:True e36 one touch windows DIY

    1990 M3
    1992 Mtech (S50 + 5 Lug)

    Comment


      #3
      Originally posted by yanal View Post
      i believe the top one goes to the spider

      he's right. I switched my hoses around to see if there would be any difference and I lost heat.....
      '87 325ic, powered by S50.

      Comment


        #4
        Top is spider
        Bottom is block

        Comment


          #5
          From what I've read by searching it isn't as simple as top spider bottom head. You have to look at where the valve in on the heater core pipes, either top or bottom.

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            #6
            Shutup and flip your hoses.

            Comment


              #7
              yes master right away master

              Comment


                #8
                What do you drive ?
                Sticky:True e36 one touch windows DIY

                1990 M3
                1992 Mtech (S50 + 5 Lug)

                Comment


                  #9
                  86 325e

                  Comment


                    #10
                    lulz
                    Originally posted by 325Projectz
                    don't listen to the diagram... listen to mr. swiss.
                    :nice:

                    Comment


                      #11
                      Originally posted by Jafxod View Post
                      Shutup and flip your hoses.
                      Originally posted by brokenbimmer533 View Post
                      yes master right away master


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