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what is this mini radiator?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by amm888, Jul 29, 2002.

  1. amm888

    amm888 1/2 ton status

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    i'm flushing my radiator and i've got this thing that looks like a mini radiator in front of (closer to the grill) my main one, i figured it was just another radiator since it has a tube leading to my main radiator and it looks like a radiator but i detached one of the hoses and red stuff leaked out...?
     
  2. Muddytazz

    Muddytazz 1 ton status

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    its an aftermarket tranny cooler. Usually put on as part of a tow package.
     
  3. amm888

    amm888 1/2 ton status

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    cool...thanks...one more question - does this change my radiator flush procedure?
     
  4. dremu

    dremu Officious Thread Derailer Premium Member

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    It should not be connected by hose to the radiator per se, i.e. coolant doesn't go through it. Only ATF (tranny fluid) does -- so , no, it doesn't change your coolan flushing any.

    My Burb, for instance, has a factory oil cooler (a little radiator for motor oil) in front of the AC condenser (a medium sized radiator for the AC) which is all in front of the radiator (for engine coolant, with a separate circuit for ATF inside it) ... so "little radiators" are very useful things for almost any fluid. (Heck, there's some tubing bent up down underneath for the power steering to cool it a little!)
     
  5. amm888

    amm888 1/2 ton status

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    i agree that they shouldn't be attached, but there is a tube going from the upper corner of my 'mini' tranny cooler to the side of my radiator? but that just don't seem right!
     
  6. Muddytazz

    Muddytazz 1 ton status

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    should be hooked up as followed...top line of tranny to top of radiator (little holes on the passenger side of radiator), bottom of radiator to the top of little cooler, bottom of little cooler to the bottom of tranny.
     
  7. amm888

    amm888 1/2 ton status

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    mine's hooked up a bit differently, but the idea's the same...but my concern is whether this hook-up effects how i should do my radiator flush? i presume not?
     
  8. Muddytazz

    Muddytazz 1 ton status

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    No, it will not have any affect on the radiator flush. Just flush it out like normal.
     
  9. gokartergo

    gokartergo 3/4 ton status Staff Member Moderator

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    Just read your profile.. It says you have 6 in lift blocks..Is that in front too???Dan
     
  10. amm888

    amm888 1/2 ton status

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    no blocks in front...
     
  11. amm888

    amm888 1/2 ton status

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    thanks for all the help guys!
     
  12. Muddytazz

    Muddytazz 1 ton status

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    no problem
     
  13. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    </font><blockquote><font class="small">In reply to:</font><hr />

    should be hooked up as followed...top line of tranny to top of radiator (little holes on the passenger side of radiator), bottom of radiator to the top of little cooler, bottom of little cooler to the bottom of tranny.

    [/ QUOTE ]
    Wrong.
    Presure side always goes to the bottom. It purges the air better. Not as importent on the tube style but VERY important on a stack plate cooler such as the ones GM used factory .
    It works the same way for the heater core. You hook a heter core up backwards it will trap air and reduce performance.
     
  14. Muddytazz

    Muddytazz 1 ton status

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    Sorry, had it backwards...what Grim said.
     

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