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Coolant at throttle body leak

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    #1

    Coolant at throttle body leak

    Hi guys,
    I have a '92 325 Cab with an M20 & auto tranny, Yesterday, when i started her up in the morning, I noticed a faint odor of coolant, so after opening the hood, I saw that the coolant was leaking out from the throttle body area.
    apparently, it is coming out from the sealant of the housing ? ( correct me if im wrong )( the part where the 3 hoses connect to ) that connects to the throttle body itself.
    I read somewhere that it was possible to bypass the coolant to the throttle body, is this actually do-able? If so can anyone help explain how to do this? I know its now good for cars in colder climates, but since I am in Houston...i really dont care.
    Thanks in advance guys!
    Last edited by HugoMonster; 03-08-2009, 08:10 AM.
    Tags: None
    #2
    Take the two coolant hoses that go to the throttle body and connect them to each other.


    Turbo M20, MSnS, 38lb, 3" no cat, RPI 12.2", ATS DTC, 240whp/240wtq, Lmnop. www.DonsGarage.net

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      #3
      ^+1 Best solution EVER.

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        #4
        Crap...correction, there are 3(three) hoses that go into the throttle housing...
        Last edited by HugoMonster; 03-08-2009, 08:11 AM.

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          #5
          Originally posted by HugoMonster View Post
          Crap...correction, there are 3(three) hoses that go into the throttle housing...
          yea, one is the PCV tube. Leave that one alone (the big one)
          1989 cirrisblau-metallic 325i

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            #6
            awesome! thank you all for the help & info!!!:D

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              #7
              If BMW built the set up to have collant flow through it wouldnt this be something to leave alone? Not trying to be a dick or anything just wanting to know if there is a purpose of doing this other than to fix a leak.
              sigpic

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                #8
                I'm not sure, but I think BMW put that coolant jacket there to help prevent the throttle blade from icing up. For a car in a warm climate, or a summer only car it should be no problem to bypass the throttle body.


                Turbo M20, MSnS, 38lb, 3" no cat, RPI 12.2", ATS DTC, 240whp/240wtq, Lmnop. www.DonsGarage.net

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                  #9
                  Originally posted by monty View Post
                  If BMW built the set up to have collant flow through it wouldnt this be something to leave alone? Not trying to be a dick or anything just wanting to know if there is a purpose of doing this other than to fix a leak.
                  Alot of car companys put coolant to the throttle body. And it's a very popular thing to delete. Like stated above, it's for cold weather so the throttle won't freeze up.

                  1992 BMW 325iC
                  1978 Chevrolet Monte Carlo
                  1965 Chevrolet Corvair Monza 140hp

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                    #10
                    ...and cold in this case means HOLYSHITWE'REINTHEARCTICIT'SFUCKINGCCOOOLLLDDD!!!!

                    You really don't need it. An M20 will not want to start in weather cold enough to present a throttle icing possibility.

                    Unless you've done a CAI that works...
                    sigpic

                    Mike

                    '91 325i track car. Mostly...

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