Brake problem

tropical36 wrote:

olfarmer wrote:
I have driven in mountains for years, I know not to ride the brakes and to shift down. I was not in heavy mountains for the last 50 miles at least and was on a slow road with a speed limit of from 35 to 55 mph. The brakes worked fine when I got to the campground. I left the engine running while I went and signed in, that took 5 or 10 minutes and then I slowly drove to my camp site, that is when I noticed the pedal sinking to the floor. I think I will go to the Chevy garage in the morning and make an appointment to have the fluid changed and if they think the master cylinder is bad, I will have them change it. Although I agree the fluid should be changed I really don't think the brakes were that hot. I just had the MH in to the Chevy garage back home before the trip and had them pack the wheel bearings and check it over including the brake pads and all fluid levels to the tune of $830 so it is rather disappointing that we are having this problem. Oh well such is life, I am just happy it happened at 5 mph and not 60 mph. Thanks again for your ideas and opinions.

Typical scenario for boiling fluid and they usually don't go to the floor like that, until you've stopped and sat for a spell. Probably cuz they get even hotter then and without the amount of air flowing, while in motion.
Some years ago an an elderly man was killed, when he and his wife went through a building in downtown Buffalo, WY after not being able to stop their descent, coming down from near 10K ft., Powder River pass. It was thought that he had pulled over at a turn about, somewhere on the way down and that his brakes failed soon after starting down again.
For proving a point, we came down that same mountain into Buffalo, 7 days prior in our old gasser and only noticed my pedal being hard. Didn't have a problem until we pulled over in town for about 20 mins. Decided on heading on to Indian campground and that's when I realized that I had no brakes to speak of. Inched our way there in low gear and got setup. The next morning I had brakes, but back tracked to a brake shop at the foot of the mountain for having the fluid changed, anyway. They do one hell of a business there and can tell you many stories about people coming down that mountain.