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trans cooler?

Discussion in 'The Garage' started by digity, Nov 13, 2005.

  1. digity

    digity 1/2 ton status

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    Brentwood Ca
    Ok just had my 700r replaced. I'm putting in secondary tranny coooler today. Can anyone tell me which line from the radiator is the return line. Upper or lower. She's a 1990. Thanks. :doah:
     
  2. HarryH3

    HarryH3 1 ton status Author

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    Bottom line into the radiator is in FROM the trans, upper line goes out TO the trans.

    To confirm, start engine cold, place trans in drive for 10-15 seconds, shut off engine (put trans back into park!) :wink1: Touch lines at radiator. The "from trans" line will be the warmer of the two.
     
  3. tpi_boy

    tpi_boy Registered Member

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    you can leave trans in park on a 700 to verify flow direction.
     

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