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Old 08-27-2010, 11:13 PM   #15 (permalink)
sid
EcoModding Apprentice
 
Join Date: Apr 2010
Location: Florida
Posts: 202

grayranger - '10 Ford Ranger XL 2 door supercab
90 day: 31.28 mpg (US)
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Add a thermostat to turn your A/C clutch on and off. I designed and built my own out of parts I had laying around the house (I'm an electronics engineer). But, prior to this, I was using a household wall thermostat to control the A/C clutch. The reason I ended up building my own is that the wall thermostat I used (which was also laying around the house, hence, free) had too much hysteresis (wasn't cycling enough, would get too cold and then too hot, needed to switch more frequently), but it was better than nothing.

Maybe there are off the shelf thermostats that have adjustable hysteresis. I didn't research it as I was too cheap to buy a new thermostat and could quickly build my own for free.
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2010 Ford Ranger, extra cab, 2.3 liter
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