Hi everyone. I recently traded my ef sedan for a b18a1 swapped CRX Si. Been driving it for a couple of weeks now, with no issues. Last week, the temps here cooled off about 20 degrees. Now, my temp gauge BARELY moves unless I'm in stop and go traffic, I have no heat (blower moves air, just no warmth), and the car stays in high idle because it thinks it's cold.

Coolant if full. The valve on the heater hose going to the heater core opens and closes when you turn the temp control. I've not replaced the t-stat yet, but I've got one. Just gotta get time to do it. If it's a bad t-stat, shouldn't it have showed signs when it was hot outside also?

Any help would be greatly appreciated, especially as it gets cooler.

 

it realy sound like a bad thermostat

if you have one new laying around, you should change it