Post by
SR86 »
https://forums.nicoclub.com/sr86-u171834.html
Mon Jun 13, 2011 12:28 pm
Drive it for a bit and when your temperature gauge starts to rise, feel the upper and lower radiator hose if you can. If the top is hot and the bottom is A LOT cooler, its most likely a blockage in your radiator. Hot being able to touch it, but not hold on for more than a couple seconds.
If your thermostat is stuck closed, after warming up your vehicle, crank the heat and fan. If it still blows hot, you're still getting circulation meaning that its working as intended. If it blows cold, and your temp gauge is still high, its most likely your thermostat is bad.