Hi group,

At first I thought that my fan switch was not working and that was why I was heating up past the standard level, but then I noticed that the coolant is not reaching the radiator. I replaced the thermostat and it's still not passing through (turns out the old thermo was OK too).

Both the metal pass tube from the thermostat and the bypass tube are hot, but the hose from the radiator into the thermostat is cool and is passing little or no coolant ( I can squeeze it until both sides touch). Is this most likely air in the lines or blockage of the radiator? 

I cracked the radiator bleed screw as the motor heated up to confirm and not so much as a whisper came from it. The bleed screw on the thermo housing...I twisted the plastic cap on the top and it seemed threaded. Do I need to prise that off to get to the bleed screw underneath or is that the bleed screw?

Or how about a garden hose flush, would that do anything?

Thanks a bunch for the continuing support on this issue!

Hosed in Colorado,
Dan Haydon