Executive wrote:
Took the coach in today to have it 'fixed'. Technician spent time going over the coach from stem to stern. Found several air hoses with leaks, one pretty large. Tightened up all fittings and replaced four hoses. No pin hole in air tank, leak was at the fitting. Total cost was $700 but the coach is 100% now. I repaired the door seal myself and it's not leaking either. I'm a happy camper again.....thanks to everyone who responded to my posting. You guys are tops with suggestions and ideas....Dennis
Glad you got everything fixed. The number of problems suggests that the system has been deteriorating over time. Everyone with air brakes should perform a pre-trip inspection regularily which will identify problems early before they become a potential safety issue. Truckers do one every day (or are supposed to). I have attached a link to a pre-trip I adapted for an RV from the standard commercial vehicle one.
http://www.visualsc.com/air_brakes.pdf