stuck thermostat?

[rion]

though it's easy to to check the thermostat condition with a boiling water, better yeat, palitan nalang, kasi mura lang ang mga thermostat.

some thermostat do open later even with same specs. I put used same specs thermos on a boling water all at once, and they have different opening time speed.

[d j]

did you check your rad cap? it's also possible that your t-stat is not opening all the way... how's your water pump?