1995 E-350 Class C RV Brake question
I have a Class C motor home on a 1995 E-350 chassis. I use it once a month for a weekend camping trip. I went to get it off the storage lot after it had been there for a month and immediately noticed a difference in the brakes. The brake pedal used to be very stiff - stopped me on a dine without much pressure. But now, the brakes are "soft" - requiring more pressure to stop the vehicle. And after it stops I can continue to press the pedal almost to the floor. Also, the brake pedal doesn't "pop" back like it used to but comes back slowly after pressing on it. I had the master cylinder replaced and the brakes all bled. No change in the brake pedal. The Ford dealer can't find anything wrong with it, but now when I press on the pedal, in addition to the softness and the slow return of the pedal, there is a "whoosh" sound. They all tell me to stop worrying, everything is fine but something is different and I don't like that. Any ideas? Another mechanic has said that the calipers aren't releasing and that is why the pedal returns slowly but they can't explain the other 'symptoms'.