it filters the outside air so that your car can use it for ac and not have to work so hard
No. The 2003 Yukon does not come equiped with a cabin filter.
d
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........
low freon
Its called an AC cabin filter, it filters the air drawn in through your AC and Heater. Its located under the black plastic grill under the passenger side windshield wiper.
you have to raise the car up. its underneath the ac compressor it shelf
The 8th generation Corolla (1998-2002) did not come with cabin air filters. Only started with the 9th generation and newer (2003 and up).
If you need help with this you should NOT be trying to work on thisvehicle
It's located on the A/C compressor.
Champion Filters (not connected with Champion Spark Plugs)
If you use the AC every day, cleaning the air filters at least once every other month is recommended. Yes, scrubbing AC filters with a toothbrush is a good way to clean them.