Hi guys,
I have a 2004 Navigator and the suspension air compressor is not turning on. I check fuses from fuse box and they also seem ok. I swapped the relay and still nothing. How can I check if the compressor is good without taking it off the truck. the front suspension is bottomed out and bouncing of course. thanks in advance

 

Check for power at the compressor. If the power is right there and it still doesn't run, then you can safely assume it's the compressor that's broken.

 

OK, so I jumped put power to the compressor and yes its bad. thanks for the advise. Now does any one recommend a place to buy these compressor at a reasonable rate.