I was in a drive-through car wash and half through it the thermostat housing blew- looked like car was on fire. Pushed it out of the way and went and got a new one and tools. The two back bolts are not accessible due to top plenum(?). I read there is a special tool: N.m 12 - in Lbs 105 (whatever that means) to reach. Is this true? Surely you don't have to disassemble 1/4 of the engine to reach two bolts in the hot sun at a car wash. Towing is $110. and the part was $37.00. Can you'll save me one more time?