91 Escort 1.8L. (Edit: sorry it's a 1.9L) My temp gauge climbs to the 'L' in "NORMAL" while idling. My fan does not come on so I crank the windows down, turn on the heat, and everything is good. Well today it got to 'L', the engine kinda sputtered, and the fan kicked on. Which is weird because the fan hasn't worked in high speed mode for a year. So my questions are: 1. Is getting to the 'L' going to harm the car. 2. How should I go about fixing the fan? 2.1. Where can I find a wiring diagram too put in a switch? 3. About the same time the fan stopped working I replaced the thermostat with one that opened at 190 and not 200+ like the original. Could that be part of my problem?