Compressor was turning, brakes did not seem to work (you can hear the air release when you take your foot off the brake, I didnt hear anything last night, I didnt dare try to drive it) Pressure gauge was at like 10psi or less. I couldnt tell if air was escaping the compressor because it was night and I dont know what the normal sounds of the are truck yet. I'll give it a good inspection on sunday during the daylight. Just wondering if this is a commom problem with a commom fix. Thanks