Airline madness!!!!!!!!

[RTRUCKING48]

(04-04-2018 )Pmarrero88 Wrote:   what’s up rawze and all the other fellow forum junkies I have an issue that’s is really starting to get under my skin I own a 2011 prostar premium with an isx 435 recently I noticed the purge valve was hissing way to long so I decided to go ahead and replace the dryer,purge valve and governor everything works fine can’t complain but I noticed once I build pressure I slowly lose pressure until about 100 psi and the compressor than kicks on and build it back up I have looked high and low and can’t find the leak I changed all the fittings to brass on the air dryer assembly and I changed my air compressors main line to brass also and still leaking out somebody anybody pls pls pls help me I just wanna see my truck sit at 135 psi and only lose air when I apply the brakes not just for no reason...!!! Thanks fellas

If you only loosing pressure when you apply your brakes maybe you have a leaking brake chamber or a hose leaking when you push on your brakes, plus this prostars are known for loosing air pressure hopefully you find your problem