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  1. #1

    Question Leaking transmission cooler fitting

    I just replaced my radiator on my 99 burban and am struggling with the transmission cooler line fitting leaking at the radiator. I'm using a fitted wrench (5/8) and I've tightened as much as I can but the fitting bolt is starting to strip.
    Any suggestion?
    Current Rides: |99 Chevy Suburban- the family truckster |93 Lincoln Town Car- 250K miles & still churning -now a fan of the Panther platform |95 BMW 325is coupe- Wheeee!
    Former GM cars: |78 Suburban 454 |71 Buick Electra 225 (deuce & a quarter) |75 Monte Carlo- 400SB- heaviest doors GM every made |70 Impala coupe- my 1st car

  2. #2


    If I recall those are normal inverted flare fittings. You must have a piece of debris in there. Pretty foolproof connection.
    When you hear hoofbeats, look for horses not zebras.

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