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1998 Jeep Cherokee Question: Oil in coolant reservoir



KJR, 4.0L 6 Cylinder, Morgantown, WV, May 01, 2009, 13:52

I had the tranny cooling radiator replaced. I was getting light-brown sludge in the rediator and reservoir. Now I have dark-brown sludge only in the reservoir; radiator seems clean ( unless the sludge settles to the bottom). What's up?

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  • Answer #1

    May 04, 2009, 18:56

    Clean out the coolant reservoir, maybe the oil from the trans cooler settled in the reservoir.

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