I was driving on the freeway today and when i pulled off, steam/smoke was pouring out of my engine. Never a good sign and the second time in a month now. When i popped the hood i could see the liquid was coming out of the rear of the engine, a 22re, and it seemed like it was about where the head attached to the block or maybe a bit lower than that. Somewhat fortunately i was right by a Jiffy Lube so i was able to roll my truck in there. The guy that took a look at it said that i was leaking coolant. i still have the same amount of oil so it seems as though the head is fine. One of the guys at Jiffy Lube mentioned a antifreeze plug and that it may have fallen off. I personally have never heard of one and could not find any info while hunting around the net. if anyone could confirm that this is a possible problem or offer any other suggestions i would appreciate it.
On the 22re the coolant drain plug for the block is located (driver side of engine block-top right). It's a little difficult to see but it's there.
