Originally Posted by SamSter0077
I bought a 2006 Winnebago several months ago and love it. Last Friday my wife called me and told me the A/C wasn't working. She said it "hummed" but wouldn't start so I was thinking Start Cap.. well, when I got home and pulled the cover off... all it took was spinning the fan shaft by hand to loosen it up enough to start and work (never touch it when it's plugged in!). Crisis averted.. we continued to our destination by the beach for some fishing.
2 Days later on the way home, I notice the RV pulling to the passenger side. When I press the brake, it would pull to the driver side. I assume it's a tire going flat or something so I pull over at the next large parking lot. Get out and look, and the tire pressures look fine?? When I touched the wheel on the passenger side it was FAR too hot to touch. hmm... I compared it with the Driver's side and it was hot, but not nearly as hot as the passenger side. It reminded me of an old Dodge Caravan I bought, it was 10 years old and only had 30k miles... the same thing happened to it right before the passenger caliper locked up and started actually smoking while driving on the freeway. Turned out the car sat too long and the caliper was just stuck..
So, we limped it another 15 miles home (lucky us!) and took it apart. The Caliper looked like it was from Mars or something, covered in red dust and rust.. ok, that confirmed my suspicion. I was thinking "oh crap, where am I gonna get this part?".. I called my local O'Reilly's and damned if they didn't have it in stock.. oh, and it was $40.00 with core trade in.. wow! Cheap too! So, I got it and changed it and argued with the wife while trying to bleed the brake system (she wasn't pushing and holding the brake hard enough..) and fixed it. Took it for a test drive, everything checked out.. SWEET!
This morning, I decided to google it and turns out this is an extremely common problem with the E450 chassis. I read that I needed to change the brake fluid because it gets too much moisture in it and corrodes things.. I read that the pistons are an inferior construction and probe to sticking when hot.. I read that the hoses are crap, buy OEM parts to fix it.. I am sure the RV'ers that have had this issue have read all the same things. Can anyone confirm they had the problem, fixed it and never had the problem again (hopefully you kept the RV long term)?
My concern is it will happen every x number of years.. just curious if anyone here can shed some light on it.. it's totally new to me! Thanks in Advance!
I had exactly the same thing happen to with my motorhome, several years ago... after it sat, unused, for a couple of years. The piston in the right caliper froze... fortunately, I was able to "unfreeze" it by giving a good wallop with a hammer. That got us off the freeway.
After letting everything cool, we were able to continue on, very carefully, but the brake pedal felt "mushy". I bled the right caliper and that gave me back about 95% of my brake feel.
I ended up replacing both calipers, rotors and brake lines, had the entire brake system flushed and new fluid put in. The rotors were replaced because the right one had been severely overheated... I replaced both front systems, just to be safe. I figured, if the right brake failed, the left was soon to follow.