Hi Hmac300 thanks for the reply,
I did replace my radiator cap, top off my coolant and 1/2 full my reservoir. However, it is still running too cold at highway speeds. Too cold meaning the gauge drops to just slightly above the bottom line and the heater blows luke warm. But I do think I must have a small radiator or heater core leak, I say small because after a week of driving I need to add about a quart of coolant. There is no visual loss of fluid in just one days travels, 20 miles.
Would something lodged in my thermostat, blocking it open, cause this?
The thermostat I replaced had a piece of metal blocking it open. I had ruled this out this time because it gets up to a proper temp and holds it in around town driving but cools down after 3-5 miles when you take it up highway speed. Before I replaced the previous thermostat, it never warmed up at all.
Tuesday, April 13th, 2010 AT 2:31 PM