Community Forums

wolf1281 · 03-20-2011, 08:46 AM

2003 HR endeavor. Low air buzzer and warning light won't go off. Air pressure goes up to 130 lbs,but buzzer and light won't go off. Coach seems to be leaning down on right front. Trying to head home. Any help greatly appreciated.

deandec · 03-20-2011, 12:28 PM

On my rig, I would leave the park brake off, with wheels blocked and on level ground. Then with the engine off, I would pump the air down to about 30 lbs which is past the buzzer alert and popout stage. Start the engine and see if the system recovers to cutoff pressure and eliminates your symptoms.

It should take about 3 minutes to get to 100 psi.

The above is part of the air brake test required as a commercial driver pre-trip.

Maybe something that simple will override the problem?

Automobilist · 03-20-2011, 12:37 PM

Uh, right front air bag failed?

wolf1281 · 03-21-2011, 06:05 AM

Found the problem. Stuck air valve to r/f air bag. Rubber mallet to valve worked wonders.

Mike Canter · 03-21-2011, 06:45 AM

When was the last time the desiccant filter was changed on the air dryer system and when was the last time both air tanks were purged for moisture. Could be you have moisture in the air system that caused that problem.