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General ChatChat about all things Blazer (and related vehicles). Off-topic stuff should be in the lounge, and all mechanical problems should be posted in the proper forum.
So dumb *** me got a Silverado or Yukon (bigger truck) AC compressor. It fits the blazer and worked when jumped in the 98 blazer. Now that I finally got the right Pressure switch for the back this thing has NO power. It has no 12v to the clutch, when jumping off the battery to the outlet it won't engage, when using a volt meter, the plugs are dead on the clutch and pressure switch, pressure switch (new) reads .3 ohm and Pressure switch on passager side reads .4ohms. I have the system filled to about 45psi and nothing is working. Also my AC Button only flashes the orange light 3 times then turns off. I can not get steady AC light or anything on this thing so I can't test if it is getting power then the computer wants it. I really hope someone can help me. The relay is reading 14v on all 3 corners.
AC Compressor no power. Worked before.
