Brake Issue

[lrquil]

Coach stops OK, but takes heavy foot pressure. Not sure if this is an air problem or if I need brakes. Anyone know what a brake job costs on a class A diesel?

[lrquil]

It's a 2002 National (Marlin) 300 Cummins w/a Spartan chassis. 89,400 miles. Not sure what the cut-in and cut-out pressure is. This is our 6th motorhome in 20 years, all but one had air brakes. We have had tire issues over the years but never a problem with brakes.

[wolfe10]

Please tell us what coach you have, how many miles on it and your experience level with air brakes. Also, cut-in and cut-out PSI for your air system.

With that information, we may be able to assist you.

[ScottG]

Some people who aren't totally accustomed to air brakes will over heat them on hills and ruin the front hub seals resulting in an oil leak.

[gutfelt]

he did say air brakes I doubt its leaking oil seal

[SidecarFlip]

Are they air brakes, air over hydraulic or straight hydraulic? Sounds to me like the drums are oiled from leaking seals. Easy to tell, get underneath and look at the backing plates and drum edges. If they are wet, it's seal and shoe time.

[gutfelt]

lrquil wrote:
Coach stops OK, but takes heavy foot pressure. Not sure if this is an air problem or if I need brakes. Anyone know what a brake job costs on a class A diesel?

sounds like there badly glazed