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This measures the temperature you’ve evaporated. On the Ford the evaporator is right here in this plastic case.

You drill a tiny little hole, now be careful when you drill a hole because you don’t want to make a hole in the evaporator. You only need to drill about that deep. Just find a nice plac – plastic tubing and then you get the end of the tube and push it in the hole until it rubs against the evaporator and it’s touching it so it measures the temperature. Then run a wire to the ‘out’ to your battery. Now when you connect it to the positive terminal of your battery, make sure you use a fuse assembly to make the whole thing safe. This is a 10 amp fuse which is good for the a/c clutch.

Now if you’re a/c computer goes bad and you wanna to fix it the way it was designed, sometimes you’ve to spend $700 to $800. This little thermostat, hey, it only costs $30. Now this particular thermostat was designed for a Mazda but they all work the same way. They measure the temperature in the evaporator and you can set them colder or warmer by turning these little screws. Now they may not have them in stock but they can order for you at any good auto part store. They’re not that expensive and as you can see they’re very simple to put in. That’s the way cars used to be when things were simpler and caused less defects. So if your car’s air-conditioning computer hasn’t been working right lately.

“I know everything hasn’t been quite right with me but I can assure you now very confidently that it’s going to be alright again.”

“Phew – Phew, forget space age technology buy yourself one of these $30 thermostats. This is Scotty Kilmer hoping you crank it up. And as always if you have any kind of questions just go to scottykilmer.com and I’ll answer them.

In case you didn’t see the video in part 1 of this series… here it is again.

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