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The compressor relay on a 2003 Navigator is on the radiator support. It will be on the right side near the bottom of the support.
It is possible to replace the air conditioner clutch without replacing the entire compressor if you can find somewhere that sells just the clutch assembly and can get the appropriate tool to remove the pulley to get to the clutch. Try buying a repair manual and looking in there.
Lincoln Navigator suspension compressor relay switch is located on the firewall. The switch will be on the passenger side of the firewall.
replace the a/c compressor by a pulley kit
You will need a Freon recharge kit. Connect the hoses of the recharge kit to the ports on top of the air conditioner compressor. Release the Freon into the compressor.
Under the hood in the aux relay box number 1, it will be marked C1008 and its the larger of the two relays on the left side of the box........
The 2003 Pontiac Montana air conditioning compressor condensation drain begins on the bottom of the air conditioner compressor. The drain goes from the compressor to the bottom of the engine compartment.
82.5 inch
engine compartment fuse box...magnetic clutch relay...t
not enough freon or too much
The low pressure air conditioner port can be found on the top of the air conditioner compressor. The low pressure port should be labeled as such.
The first thing to check is the radiator fan.