Good Sam Club Open Roads Forum: Class A Motorhomes: Inside tire valve extensions
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MetalGator

Florida

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Posted: 07/01/21 04:04pm Link  |  Quote  |  Print  |  Notify Moderator

Went to get the motorhome out of our storage garage today. My TPS system usually takes a minute or two to kick in once driving. The low pressure alarm went off. My motorhome says to keep tire pressure at 90psi but I normally keep them a few PSI above 90. My right rear inside tire was indicating 62 PSI and the other 5 tires were between 93-96 psi. I only live about 4 miles from my house so I drove slow and parked in the driveway. I have a big air compressor in my storage garage but I have a small one at the house. I was able to get the PSI in the low tire up to 76 PSI with my little compressor and drove slowly to a local tire place that does truck tires.

As soon as the tire guy came out, he said your problem is probably that tire valve extension. He said 90 % of the time, a slow leak on an inner tire is because of the valve extension. I don't know if he tightened the extension or put a new one on but he said its fixed now (so far PSI is the same).

Is this a common problem? If so, what is the fix? If there wasn't an extension I am scratching my head wondering how you air up the inner tire?

I guess I will know if the issue is fixed tomorrow but so far PSI hasn't changed on that tire since it cooled down from the drive home.

Burch


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wa8yxm

Davison Michigan (East of Flint)

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Posted: 07/01/21 05:29pm Link  |  Quote  |  Print  |  Notify Moderator

Two very common issues
Tire valve extensions especially the flexible kind (more on that in a bit)
And screw on TPMS sensors.

I went with Dully Valves on my Rig when I put on new shoes (Tires) they are metal and are really very long or very bent valve stems. Loved those things.


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two travelers

Smithtown, NY

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Posted: 07/01/21 07:00pm Link  |  Quote  |  Print  |  Notify Moderator

I also had problems with the flexible extender. It only leaked when driven was found quite by accident by my mechanic. When I got new tires, I went with solid extenders on all wheels.

routeforty

ohio

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Posted: 07/01/21 07:36pm Link  |  Quote  |  Print  |  Notify Moderator

I put metal valve extensions(from NAPA) on my MH. When I screwed them on it began to leak. I backed off a couple turns until the leak stopped. Haven't had a problem in 20k miles.


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larry cad

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Posted: 07/02/21 04:34am Link  |  Quote  |  Print  |  Notify Moderator

wa8yxm wrote:

Two very common issues
Tire valve extensions especially the flexible kind (more on that in a bit)
And screw on TPMS sensors.

I went with Dully Valves on my Rig when I put on new shoes (Tires) they are metal and are really very long or very bent valve stems. Loved those things.


I think John meant to say "DUALLY VALVES"

Dually Valves


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scbwr

North Ridgeville, OH

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Posted: 07/02/21 05:17am Link  |  Quote  |  Print  |  Notify Moderator

larry cad wrote:

wa8yxm wrote:

Two very common issues
Tire valve extensions especially the flexible kind (more on that in a bit)
And screw on TPMS sensors.

I went with Dully Valves on my Rig when I put on new shoes (Tires) they are metal and are really very long or very bent valve stems. Loved those things.


I think John meant to say "DUALLY VALVES"

Dually Valves


I ordered the dually kit from yourtireshopsupply.com (link above) and it was one of the best things I've done for my rig. I was having trouble with extensions....the one piece valve stems are the way to go and work well with TPMS sensors.


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oldave

Tx

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Posted: 07/02/21 07:49am Link  |  Quote  |  Print  |  Notify Moderator

I have learned the hard way that extensions are just another possible
problem.

The best solution is a new stem specially shaped to bring the end out
where you want it.

They are available at the link above, here it is again.

Dually Valves

Dale.Traveling

Newport News, VA

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Posted: 07/02/21 08:10am Link  |  Quote  |  Print  |  Notify Moderator

MetalGator wrote:

,,,Is this a common problem?,,,


It can be a problem but having extensions should not be a reason not to inspect the tire for damage such as nails or a sidewall abrasion along with checking the valve stem seal and the extension. A little soapy water goes a long way with the confidence that the trip will be uneventful.

I've had two leaks. The valve stem seal that went while going down the road before I had a TPMS (destroyed the tire before I could get off the road) and a slow leak at the bead seal, post TPMS, after new tires were installed. Not had any problems with the extensions.


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atsrmf

Indio

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Posted: 07/08/21 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

Buy a pair of these, I'm glad that I did! Be sure to order the correct pressure.

Crossfire

scbwr

North Ridgeville, OH

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Posted: 07/08/21 07:42pm Link  |  Quote  |  Print  |  Notify Moderator

Another vote for

https://yourtireshopsupply.com/category/796/dually-valve-kits

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