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How did you hook up the inline fuse to compressor and ground to compress ? Ground what ? Right at the clutch coil ? You have to be hooking it up wrong . The compressor can't cause the clutch coil to short or blow the fuse , even if the compressor were seized up . An before that would have the serpentine belt would burn up , squealing noise. applying B+ voltage in the relay socket ,pin 30 to pin 87 will engage the compressor clutch . If the fuse blows the wiring from the relay to the compressor clutch is shorted to ground . Look for rubbed through wiring harness .
jump the low or high pressure switchs this switchs are located on the a/c lines of tje compresor not run check power to the compresor if you have power maybe the compressor is gone
check the a/c control pannel to and take a second opinion before expend money
CHECK AC COMPRESSOR CLUTCH COIL WIRE CONNECTOR HOOK UP.IF AC COMPRESSOR CLUTCH COIL WIRE CONNECTOR HOOK UP WRONG OR WIRE HAS A SHORT IT WILL BLOW THE ECM FUSE AND AC COMPRESSOR FUSE.CHECK FUSES AND AC COMPRESSOR WIRES.
CHECK THE AC AND HEATER CONTROL FUSE.MORE LIKELY FUSE BLOWED BECAUSE AC COMPRESSOR COULD HAVE FAILED IF LOW SIDE IS OVER 100 PSI. THE REED VALVE PLATE IN COMPRESSOR PROBABLY DAMAGED CAUSED COMPRESSOR FAILURE BLOWED THE HVAC CONTROLS FUSE. HAVE AC SHOP CHECK IT OUT.
The A/C is ran threw the transmission computer are you having problems with it shifting funny? if so check all fuse in the inside of the truck then check the fuses in the engine compartment, if you don't find any blown fuses buy a AC connector and hook up one wire to ground on the battery and one to positive on the battery se if the clutch kicks in if it does try starting it and see if it gets cold if it does then it's the AC computer that has a problem like a pinched wire between the pan and transmission. Do not run a hot wire to the AC connector be sure to purchase one so you don't blow the transmission computer it costs $300 plus labor. it it does not run then pull the low pressure switch plug on the receiver dryer looks like a aluminum tank insert a paper clip into the plug then try it again if the ac comes on and cools then you have a bad pressure switch, it costs $10.00 and can be replaced without losing refrigerant then unhook your spare power connector and hook up the original hook up to the compressor and replace the low pressure switch it should work then. If it does not work get back to me and I will give you some other tests to check it with.
The best thing to do first is to check the AC clutch itself if it's working, locate the air - con compressor and you will see a wire coming out from the front top of the AC-compressor, it has a connection, remove tht connection and take a piece of wire, connect it to the wire frm the AC-compressor and the other end of the wire to the battery positive terminal,by doing so you will hear a clicking sound of the clutch at the AC-compressor, better still is to start the car's engine, switch 'ON' the AC as normal, let the blower blow thn connect tht wire frm the AC-compressor to the positive side of the battery terminal and check it out if the AC-compressor rotates and also you may get in the car and see if its blowing cold air.
Please also check this -->
HEAT/COLD selector (on the dash) is not selected at HEAT...if it is thn the AC-compresor clutch will not kick in!
Hope this helps!
well what you can do because your switch is bad is have a mechanic install a toggle switch that has to be flipped on before you turn on your ac and your compressor will go back to working normally. wired directly to battery is the only way to guarantee that you will get back to that ice cold as. ENJOY!!!!!!
have u tested the ac compressor cycling switch located in the low side line from the compressor? also a common failure is the AC compressor cycling relay also known as the WOT (wide open throttle) relay Jumper a wire across the AC cycling switch in the low side line, if the compressor runs replace the switch, if not then replace the relay which in in the power distribution box under the hood.