[dtownfb]

You were right, atoyota. I changed the coolant this weekend. This time I pulled on the drain valve as I turned it. Popped right off. I couldn't reach the engine block drain so I only drained about 5 quarts of the coolant. I ran the engine with the bleeder valve partially open to let any air out of the system. Seemed to work as i had to add coolant a couple fo times. And no problems during my 45 minute commute in 90+ weather.

Simple DIY.