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Old 12-14-2021, 08:48 AM   #43
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Brake caliper brake hoses

Had the same problem with the front brake calipers sticking and over heating. Found the caliper brake hoses causing the problem.
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Old 12-14-2021, 03:26 PM   #44
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Quote:
Originally Posted by vagaron View Post
Check if there was a recall on the brakes for your model & year. That was the case for later years.
Where did you find this recall info?
We have a 2004 Newmar on a Workhorse W22, and I just found out I need new rear brakes. THANKFULLY, I was just moving the rig on the property to its winter resting spot, and my brake pedal went to the floor, leaking fluid out of the right rear caliper.
So far I'm guessing that I over-extended the pistons, but am not sure yet. I've only had the rid 2+ years, but have not had ANY issues with the brakes.
Glad it happened at home - figuring caliper re-build, new pads, fluid flush and might as well replace the flexible lines while I'm at it.
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Old 12-14-2021, 04:39 PM   #45
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Originally Posted by GeoffnJules View Post
Where did you find this recall info?

We have a 2004 Newmar on a Workhorse W22, and I just found out I need new rear brakes……THANKFULLY, Glad it happened at home - figuring caliper re-build, new pads, fluid flush and might as well replace the flexible lines while I'm at it.


WCC issued the “brake recall” in September 2010 for ALL of the w-22 ever built up to that time. It replaces all 4 of the OE calipers made by Bosch, at no cost to the owner for parts and labor. If you will post only the last 8 digits of the chassis vin number, I can check the status for you. IF yours is still open, Navistar is still obligated to complete the recall.
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Old 12-14-2021, 05:41 PM   #46
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Why will the Motive pressure bleeder not work? The cap is screwed onto the fluid reservoir and the pressure canister can be a couple of feet away? Do not understand the problem.
I have a 2000 workhorse P32, basically the same, and the master cylinder is rectangular with a plastic reservoir. The cover is held on with a wire bail. They are not like back in the olden days when they were all cast iron with just one cavity and a screw on cap. The new bleeders come with covers to fit the newer ones but there is only about an inch between the top and the floor board.
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Old 12-15-2021, 10:29 AM   #47
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I have a 2000 workhorse P32, basically the same, and the master cylinder is rectangular with a plastic reservoir. The cover is held on with a wire bail. They are not like back in the olden days when they were all cast iron with just one cavity and a screw on cap. The new bleeders come with covers to fit the newer ones but there is only about an inch between the top and the floor board.
Motive makes adaptors for those reservoirs or at least the pictures look like they do. The Motive site shows all the adaptors. I have used them for years(not on reservoir like yours) and it makes bleeding brakes and clutches, etc very easy. Looks like the flat adaptor will slip right onto the top of your reservoir in place of the cap plate.
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Old 12-15-2021, 11:20 AM   #48
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Originally Posted by edgray View Post
WCC issued the “brake recall” in September 2010 for ALL of the w-22 ever built up to that time. It replaces all 4 of the OE calipers made by Bosch, at no cost to the owner for parts and labor. If you will post only the last 8 digits of the chassis vin number, I can check the status for you. IF yours is still open, Navistar is still obligated to complete the recall.
Ed - you are my hero!
I believe the last 8 of my chassis # is 43383713
We have a 2004 KSCA 3651 model with a W22 Custom Chassis.
I also have 2 "product numbers" - one on the title and one on the Wisconsin registration cert., which are both attached to each other yet. Not sure why the two are different, but they're both 11 digits.
My cell is 262-893-8269 if needed - I'll have faith that no trolls are digging this deep in a thread - lol
If you could steer me in the right direction, we would GREATLY appreciate it!
If not, thank you for your time and effort anyway!
Merry Christmas to you and yours from the Goodlad clan, sir!
Geoff
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Old 12-15-2021, 02:16 PM   #49
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Originally Posted by GeoffnJules View Post
Ed -
I believe the last 8 of my chassis # is 43383713 Geoff
Geoff: Your chassis had the usual 3 recalls of that era. The big one, Bosch Caliper recall 51101-C issued in September 2010 was completed 10-19-2010 @ 21,348 miles. Therefore, no help from Navistar for your current situation.

If you want the build sheet and info about the other recalls, send mer an email so I can attach it to a reply: edgray1@gmail.com

Merry Christmas to you, too.
Ed
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Old 12-16-2021, 10:15 AM   #50
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Is the bleader on top of the caliper ?
Yes. Bleeders are always on top.
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Old 12-16-2021, 03:58 PM   #51
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Yes. Bleeders are always on top.
While we have never met, I feel confident that twinboat knows where they are supposed to be. I think he's asking where they *are*.

It's a reasonable question. On some brake systems, it's possible to install the right caliper on the left wheel, and vice versa. That would position the bleed screw at the bottom rather than on the top.
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Old 12-17-2021, 03:33 AM   #52
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Originally Posted by ItalGerBrit View Post
Motive makes adaptors for those reservoirs or at least the pictures look like they do. The Motive site shows all the adaptors. I have used them for years(not on reservoir like yours) and it makes bleeding brakes and clutches, etc very easy. Looks like the flat adaptor will slip right onto the top of your reservoir in place of the cap plate.

I have the same style master cylinder in my 2002 P32 coach, and also have access to a plate style adapter and pressure brake bleeder, getting it aligned and in place in the tight quarters working by feel is just not worth the effort when flushing the brakes on my coach. I do however use speed bleeders which do help considerably.
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Old 02-08-2022, 03:29 PM   #53
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Originally Posted by frebird View Post
About a month ago I had a few things serviced on my motorhome.
One thing they did was flushed and bled the brakes, the guy told
me that the pressure at one caliper was little weak. Today I took
it for a spin and that brake caliper that had weak pressure was
sticking. Anybody have any suggestions on anything to check or
should I just replace the caliper? Its a 1994 Chevy p30 chassis...
Southwind
On our motorhome, workhorse w22, we had the brake rotors and calipers replaced. We had to bring it back as one of the new brake calipers sticking and it burned up the new brake pads. They replaced it under warranty. And it did it again so took it back again. This time they said it was the ABS module which is not available. They still have our unit. Not sure what to do. I can get a used one but its $850 with no warranty.
Back to your unit. If the wheel caliper that is sticking, you can crack the brake line fitting that attaches to the wheel cylinder and see if brake fluid sprays out under pressure. If so, it's not the caliper. Most likely the ABS Module or master cylinder not releasing the pressure. If it's the master cylinder I would think you would have pressure on all brakes.
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Old 02-08-2022, 05:53 PM   #54
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On our motorhome, workhorse w22, we had the brake rotors and calipers replaced. We had to bring it back as one of the new brake calipers sticking and it burned up the new brake pads. They replaced it under warranty. And it did it again so took it back again. This time they said it was the ABS module which is not available. They still have our unit. Not sure what to do. I can get a used one but its $850 with no warranty.
Back to your unit. If the wheel caliper that is sticking, you can crack the brake line fitting that attaches to the wheel cylinder and see if brake fluid sprays out under pressure. If so, it's not the caliper. Most likely the ABS Module or master cylinder not releasing the pressure. If it's the master cylinder I would think you would have pressure on all brakes.
An internally collapsed hose can also make a caliper stick. Trust me on this one. Before you spend $850, try the $15 hose. Also, the diagnostic procedure you suggest assumes the hose is OK.
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