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My fiancee's 1993 Ford Explorer (1st generation) lost all of its cooling capacity one day when she went to turn it on. Went to check the pressures with my manifold gauge, sure enough, very little in the system. I found the leak easily enough when the high side pressure cap popped in my hand and...

Thanks for the response. Do you remember how the rear differential fluid looked at 120,000 miles? -Techniker

I am planning on replacing the rear differential fluid for a 1993 Ford Explorer 4WD. Since it is RWD most of the time, I am changing the fluid for my friend. To my horror she has informed me that it has never been changed (and the vehicle is at 185,000+ miles). I looked at the Haynes manual and...

Thanks for the response. Or you could do it the used car dealer way- sawdust in the gearbox. Keeps it quiet until the gears blow out. That's interesting about the TSB and I'd be interested in reading up about it. Do you remember which TSB # it is or have a link? I tried to look up a TSB on a...

The "special tool" is a common ratchet. Could be 3/8" or 3/4" or 1/2" depending on which drain plug and the year of the vehicle.

I hate to point out the painfully obvious, but replacing the fluid is probably only covering up the problem- mechanical wear and probably could have been prevented through regular RD changes. Yes, the fluid can wear out, but sounds are never good. Drain plugs can be made easier to remove by...