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Topic: Both Right Rear Air Bags Leaking (Read 1833 times) previous topic - next topic

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Both Right Rear Air Bags Leaking
OK, I give. I had been to the HWH tech school when I was a FT tech.
I have read all the manuals including the tech manual again. I have read everything on here through search. I understand the leveling system. But maybe I don't. I slept since...

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  • qcj
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Re: Both Right Rear Air Bags Leaking
Reply #1
I'm not expert on this, but could it be the six pack?

Re: Both Right Rear Air Bags Leaking
Reply #2
I'm not expert on this, but could it be the six pack?

I would also look at the rear six pack, especially RR dump solenoid.  At minimum, replace the o-rings on the solenoid valves (posts on forum...

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  • kenhat
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Re: Both Right Rear Air Bags Leaking
Reply #3
Spray the six packs with soapy water from an aerosol bottle (old windex bottle). Soak it down front and back. If you are leaking there you should see something. Be sure to look down in-between the solenoids for bubbles. BTW: air up completely...

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Re: Both Right Rear Air Bags Leaking
Reply #4
Spray the six packs with soapy water from an aerosol bottle (old windex bottle). Soak it down front and back. If you are leaking there you should see something. Be sure to look down in-between...


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  • Last Edit: November 11, 2017, 04:46:32 pm by gracerace

Re: Both Right Rear Air Bags Leaking
Reply #5
Can you take the 6 pack out of the equation, and air up everything downstream of the 6 pack to the rr?

Re: Both Right Rear Air Bags Leaking
Reply #6
Can you take the 6 pack out of the equation, and air up everything downstream of the 6 pack to the rr?
I was thinking of that....

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  • MAZ
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Re: Both Right Rear Air Bags Leaking
Reply #7
I made a pressure tester that I can attach at different points and pressurize different items and then watch the gauge on the tester to look for leaks. You can pressurize the individual bags and check for leakdown. I have a picture of it but not...

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  • Last Edit: November 11, 2017, 11:04:28 am by MAZ

Re: Both Right Rear Air Bags Leaking
Reply #8
I made a pressure tester that I can attach at different points and pressurize different items and then watch the gauge on the tester to look for leaks. You can pressurize the individual bags and...


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Re: Both Right Rear Air Bags Leaking
Reply #9
Chris:
I had a similar problem and finally found a knick in the air line going to the right rear bags. It was a small knick but could feel it when rubbing your hand over the line.  Replaced the air line which eliminated the problem.  Just another...

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  • kb0zke
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Re: Both Right Rear Air Bags Leaking
Reply #10
We're going to OTM for airbag replacement in January. I've asked them to also check and fix whatever other air leaks they can find.

  • qcj
  • [*][*][*]
Re: Both Right Rear Air Bags Leaking
Reply #11
I also put together a thing to help isolate where the leak is coming from.  In this case one end to the air bags and the other to the six pack. pump the air up and cut the valve off.   Sorry I could not get the photo to post

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Re: Both Right Rear Air Bags Leaking
Reply #12
I made a pressure tester that I can attach at different points and pressurize different items and then watch the gauge on the tester to look for leaks. You can pressurize the individual bags and...


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Re: Both Right Rear Air Bags Leaking
Reply #13
UPDATE
The front air pressure protection valve for the rear tank is leaking bad. I didn't spray the exhaust hole before, so I missed it. I also didn't hear it, because I was rockin' to the stereo! Have two on order. I installed a piece of straight...

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  • jcus
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Re: Both Right Rear Air Bags Leaking
Reply #14
UPDATE
The front air pressure protection valve for the rear tank is leaking bad. I didn't spray the exhaust hole before, so I missed it. I also didn't hear it, because I was rockin' to the...


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Re: Both Right Rear Air Bags Leaking
Reply #15
MOT have them, for about $38 ea. They ship the same day you order.

Thanks. I don't buy anything from FT, unless I have to. Wait 2 days to get a returned phone call to order ,then it's double the...

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  • jcus
  • [*][*][*][*][*]
Re: Both Right Rear Air Bags Leaking
Reply #16
Thanks. I don't buy anything from FT, unless I have to. Wait 2 days to get a returned phone call to order ,then it's double the price. I don't mind paying someone, but there is never any...


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Re: Both Right Rear Air Bags Leaking
Reply #17
MOT is Motorhomes of Texas, not affiliated  with Foretravel of Texas, good service, reasonable prices.
What is the pressure on the $12 valve?   Don't think I would go no-name on a protection...


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  • jcus
  • [*][*][*][*][*]
Re: Both Right Rear Air Bags Leaking
Reply #18
Thanks for your input
I am sure they are good people. Original equipment part $29.95 free shipping. get in 3 days

KN31000 Pressure Protection Valve - Closes @ 45 PSI - Opens @ 65 PSI 1/4"...

...


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Re: Both Right Rear Air Bags Leaking
Reply #19
Chris,

When I bought our coach, the protection valve still had the paper tag with the Meritor WABCO part number: 9348990060.

Mark

Re: Both Right Rear Air Bags Leaking
Reply #20
Chris,

When I bought our coach, the protection valve still had the paper tag with the Meritor WABCO part number: 9348990060.

Mark

Thanks..


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  • Last Edit: November 12, 2017, 11:44:29 pm by gracerace

Re: Both Right Rear Air Bags Leaking
Reply #21
UPDATE to the Update:
With the air leak fixed, we are at 35 psi loss in 24hrs. FT is happy with 60! With the DOT you are fine at 120 PSI loss in 24 hrs.Works out to 1.5 PSI loss in 1 hr. FT is happy with 7 PSI in 2 hours. There is one small leak...

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Re: Both Right Rear Air Bags Leaking
Reply #22
Thanks..

BTW, that number is no good anymore. Here is the new part # 90555396
HALDEX PRESSURE PROTECTION VALVE 65 PSI 90555396
Funny, looks just like the $12.00 one I bought!
Cheers

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Re: Both Right Rear Air Bags Leaking
Reply #23
So I hooked up the RR Right Height valve again. If you have been following this, I had both lines capped off at the valve. So now the coach raises 1/4" every 1/2 hour.
I made a shut off...


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Re: Both Right Rear Air Bags Leaking
Reply #24
Chris,

Years ago we had a situation of a front Raise solenoid valve leaking through.  We went through 2 shops and phone calls to HWH who diagnosed it as first, a bad level sensor and then...


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