i have a 91 240sx with a stock engine and i recently noticed it has been leaking a small amount of coolant (maybe a cup or two at the most every few weeks) at first i thought my engine was just using (maybe burning a little coolant) but last week i saw it drip a small puddle (a few tablespoons) of coolant in a parking lot outside a local Gamestop where i buy games....
Anyway i jacked up the car to see where it was leaking and inspected my hoses, radiator, water pump, and heater hoses. could not find anything. the leak seems to be on and off. today i noticed it leaking again after shutting the car off from a half hour long drive. it seems to be dripping from the drivers side of the oil pan. i filled up the coolant resevoir and broght my car home and jacked her up. i could not see any coolant leaking. i went underneath and only saw trace amount on the drivers side of the oil pan...almost near the power steering pump...im stumped
a friend told me it might be the "freeze plug" on the side of the block. i have never heard of this leaking coolant.has anyone had this? it would make sense if it were leaking there because maybe it burned off before i could catch the small leak. i will drive her again tonight and try and get more details. please help me out guys, ive tried to be as descriptive as possible. THANKS!
i apologize for the long read but the passion i have for my nissan inspires me to care enough about my ride to keep her in shape and type all this out
Matt