I recently experiance auto park problems. Warning ligth came on after equipment cluster blackout and never reset. Come to find out after getting home I did not have auto parking at all, well the coach has been in the shop and they tell me the actuating cable that works with the hydraulics zeised and that the break shoes springs ane other harwared were damage. The thing is, I never smelled hot break shoes or experianced any drag while driving, after I did a walk througth on the coach and reset the instrument cluster by turnning of the chassi battery switch and then back on the instrument cluster reset. everything looke normal and the coach was driveable, I went on to get home, about 10 miles. So has anybody experiance something like this?
Can you actually drive a MH with brakes applied and not feel it? I drove comencial tractor trailers for 10 years, and let me tell you, I knew when I had hot brakes.
If they're locked up, you should feel and also smell them. I can tell you that if they are engaged as in pulling the yellow knob, (if so equipped) the coach doesn't want to move. I been there and done that, but have never tried to force move it either.
Now, it's hard for me to believe some of the things that I've heard, like everyone including the cat and cargo trying to go through the windshield because of some failure, which caused the brake to default (engage) at 70MPH. In this case, we could then call it an emergency brake as well.
There's too much we don't know here. Are you saying that the autopark did hold the coach and after this incident, they failed to do so? If they were not holding well for some reason (like on an incline) then I guess it would be possible to engage them without a lot of friction, but something just isn't sounding right here.
"We are often so caught up in our destination that we forget to appreciate the journey."
1998 36ft. National Tropi-Cal Model 6350, with a tag axle and one slide, on a 1997 P32 Chevy chassis....7.4 Vortec Engine
Are you aware that AutoPark
does NOT activate the wheel
brakes....it activates a
separate brake on the drive
shaft.....no connection to
the wheel brakes......
L NORMAN WADDELL
30 FOOT ALLEGRO
SATURN TOAD
WIFE AND 2 DOGS SUGAR BEAR & COCO BEAR
I believe your autopark is a J71 model. Ours is a J72, an update to yours. Ours has activated 3 times while driving and I didn't notice any drag, however, I did get off the road as soon as possible. The autopark brake is directly behind the transmission and activates on the drive line. You may not have smelled it as it would vent out behind you when moving. I crawled under ours and could smell it when I got up close and personal. It should not lock up your coach while in motion, but should hold your coach when parked. Look up Carlisle brakes on the web, and you may find some information. Good Luck.
Yes, I am aware of the difference of the chassi brakes and the Auto park brakes. It is the brake shoes on the brakeing assembly behind the transmition that I am refering to, The auto park brakes did work before, bouth in parking mode or by the yellow button, but after this incident nothing work anymore. Like GOODTURN mentions, it did happen the same way as it did to him, I did not notice the problem until I got home and went to park the coach, that it rolled a little bit after the transmition was in park and I figure something was wrong. I will get an update from the shop sometime today, and would like get back to you guys, I appreciated all the info. Have a great day
I don't see how the instrument cluster can affect the AP. It is not related.
If the autopark is out of adjustment, then you can drive with the brake applied. It happens very frequently. The brake shoes will wear and the driveshaft will turn freely just after a few miles. You don't know anything has happened except for the light on dash.
Most of the failures where the auto park engages while driving is caused by a faulty pressure maintence switch. The way to confirm is to check for fluid leaks around the AP pump.
The switch is under $50, takes only minutes to replace. You will have to readjust the brake shoe.
Most of us P-30 owners carry a spare switch. It only lasts for a few years.
sum1 wrote: Before you let anybody touch it, Send a Private Message to Oldusedbear
Tell him the chassis year, GVWR, nature of the problem, and your EMail address.
Good advice. He has even walked some owners through repairs in their driveway that their repair shop gave up on.
Losing the little spring when removing more than the green switch itself for replacement, seems to be the culprit here,... in most cases.
Cousin_Eddy wrote: I don't see how the instrument cluster can affect the AP. It is not related.
If the autopark is out of adjustment, then you can drive with the brake applied. It happens very frequently. The brake shoes will wear and the driveshaft will turn freely just after a few miles. You don't know anything has happened except for the light on dash.
Most of the failures where the auto park engages while driving is caused by a faulty pressure maintence switch. The way to confirm is to check for fluid leaks around the AP pump.
The switch is under $50, takes only minutes to replace. You will have to readjust the brake shoe.
Most of us P-30 owners carry a spare switch. It only lasts for a few years.
If one would also lose power to the AP system along with the instrument cluster, then the brake would go into default on, so that might account for it, but you'd think you'd know it, unless the shoes were already worn out from prior abuse. I can't see how they could ever wear out with proper application, since they are normally never used like a stopping brake would be.
I need to check again, but I keep thinking that there's more than one thing feeding off of the AP fuse.
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