Community Forums

aquarltere · 06-10-2014, 07:48 PM

Hi my auto park light went on. I didnt know why so I drove home 30+ miles from a camping trip, when I got home I noticed the auto park is leaking .Is it possible to disconnect it or do I have to repair it thanks Tony

edgray · 06-10-2014, 08:25 PM

Quote:

Originally Posted by aquarltere

Hi my auto park light went on. I didnt know why so I drove home 30+ miles from a camping trip, when I got home I noticed the auto park is leaking .Is it possible to disconnect it or do I have to repair it thanks Tony

If you are talking about the J71 AAPB (yellow knob to release) on a Chevy chassis, you likely won't have ANY "parking brakes", and the coach can roll away if not chocked wheels or up on jacks. Please don't think you can "not" get it repaired. There is NO "P" gear in your tranny, unlike a car, and that is why you have an AAPB to prevent the coach from moving when in "park"

For free advice via email, contact Roger at: oldusedbear11@charter.net . He is the THE expert on these infamous systems and their problems. Ed

ahicks · 06-11-2014, 06:27 AM

Do I have to repair it? Really?

aquarltere · 06-11-2014, 06:55 AM

I have heard a few nightmare stories of these auto park systems blowing a fuse and applying brakes while at highway speeds. My thought is do I really want this!!! I called a local chevy truck repair shop they said they reccomend disconnecting it and using the parking brake..just fishing for your thoughts thank you

mchero · 06-11-2014, 07:16 AM

Quote:

Originally Posted by aquarltere

I have heard a few nightmare stories of these auto park systems blowing a fuse and applying brakes while at highway speeds. My thought is do I really want this!!! I called a local chevy truck repair shop they said they reccomend disconnecting it and using the parking brake..just fishing for your thoughts thank you

Disconnect the only parking brake and use the parking brake????

Really?

Don't drive it untill its repaired.

Romer1 · 06-11-2014, 07:16 AM

As mentioned above:

oldusedbear11@charter.net

Unless your local dealer has been working on motorhomes as opposed to trucks, I wouldn't trust them. I know the Chevy truck dealers near me had no idea how autopark works, nor would they even work on it.

Roger gave me all the info I needed for my 1994 Adventurer on a P30

aquarltere · 06-11-2014, 07:48 AM

Thank you I do plan on e mailing roger

edgray · 06-11-2014, 08:03 AM

Quote:

Originally Posted by aquarltere

I have heard a few nightmare stories of these auto park systems blowing a fuse and applying brakes while at highway speeds. My thought is do I really want this!!! I called a local chevy truck repair shop they said they reccomend disconnecting it and using the parking brake..just fishing for your thoughts thank you

My thoughts......whoever you talked to must be an IDIOT.

IF you have a Chevy P32 chassis with the J71 AAPB, you don't have but ONE "parking brake", so dis-connecting it will make it kinda ineffective when used.

Your concern about the AAPB applying the brake while driving is legitimate, and this has happened to lots of owners. When it happens, you will slow to a stop rather quickly, OR you will keep going until the brake pads wear down to a point where they can't hold you in place when you park. However, unless you replace it with the newer alternative AAPB from Brazel, you really have no choice but to repair it. And that is where Roger (OUB) can be very helpful. He just posted over in the Workhorse forum that he had a problem receiving some emails, and now is busy getting caught up, but I'm SURE he can help you figure out what needs to be done to yours.

In the interim, use wheel chocks or leveling jacks to keep coach from rolling away.

mchero · 06-11-2014, 08:22 AM

i think just about everyone should have a good pair of tire chocks in their rig!

89sandman · 06-11-2014, 08:53 AM

Auto park has got to be one of the worst ideas ever. I would like my transmission to be strong enough to hold what ever it is installed in, if its not then it should be made stronger...

Just one more system to cause a problem that shouldn't be there!

aquarltere · 06-11-2014, 08:56 AM

Thanks for all your help to everyone.

tropical36 · 06-11-2014, 09:58 AM

It's not a good idea to disconnect the auto park and do you even have a manual foot pedal as well? Not sure when the transition was, but you may not have the J71 self contained version either and are utilizing the power steering/brake boost pump for the AP.
OP says leaking, but not what's leaking? If it is indeed, the J71 and the green pressure sw. is leaking, then a replacement of such will most likely fix it and one should be on board at all times for a spare.
It's actually not a bad system with a little education and some spare parts on board, but will admit that GM should have manufactured a heavier transmission all around or the house manufactures installed an Allison in it's place like WH did with their chassis. Naturally, this would put the cost out of sight and even with the WH chassis, the average price was about $4500 over the price of a Ford and with any choice of brands.

aquarltere · 06-11-2014, 10:26 AM

Hi I do have a foot petal emergency brake, it actually never worked since I baught the rv. When I seen that the auto park light was on and noticed a drip mark going down my driveway I crawled under the rv a box under the middle of the rv was leaking that I was told holds a pump. I pretty much do all my own repairs and recently spen 2k on tires and was looking for a easy way out. Hopefully when I unbolt the cover on the box it may be a easy fix.

tropical36 · 06-11-2014, 03:02 PM

Quote:

Originally Posted by aquarltere

Hi I do have a foot petal emergency brake, it actually never worked since I baught the rv. When I seen that the auto park light was on and noticed a drip mark going down my driveway I crawled under the rv a box under the middle of the rv was leaking that I was told holds a pump. I pretty much do all my own repairs and recently spen 2k on tires and was looking for a easy way out. Hopefully when I unbolt the cover on the box it may be a easy fix.

Sounds like you do have a self contained version III, so pull off the side cover and change out the green sw. which can be ordered from amazon or paying full price at a chevy truck dealership. If it fixes it, order another for a spare and if it doesn't, then you'll have your spare and can look else where for your problem. Just be sure to only remove the green pressure switch itself and not the brass body it's screwed into, or you'll be having more problems, that won't be so easily solved.
If the foot pedal doesn't work it could be disconnected in the lever box on the driver's side near the tranny, but wouldn't know why unless someone disconnected it by mistake, thinking that it was the lever for the AP.