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07-31-2018, 09:08 PM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: Gemini
State: Maryland
Posts: 9
THOR #12483
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How to check tire pressure in rear tires ?
Here I am again, folks, with another crazy question. My hubby wants to check the tire pressure in the rear tires of our Thor 23TR, but we didn't find any valve stems. How is it done?
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07-31-2018, 09:36 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,157
THOR #6411
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All six tires are mounted on the rims the same way with the same valve stems. Just look through the slots in the wheels and you will see the inner stem. You will need to buy a special dual chuck air pressure gauge or valve extenders if you are going to check the air pressure regularly.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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07-31-2018, 09:40 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: 28z
State: North Carolina
Posts: 252
THOR #7401
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If you go with valve extenders use the solid metal ones and not the braided type and insure the valve stem on the tires are metal. I fought this for a long time until I went this route. Now I'm on top of it. In like Flynn.
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07-31-2018, 11:28 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,883
THOR #6826
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But (in my opinion) the best solution is to replace the regular valve stems with “dually valves”. Expect to pay about $200 to purchase a kit and install on all four rear wheels. The tires need to be dismounted and remounted at a tire store. I know it sound ridiculous to spend this much or go to so much trouble but it puts both valve stems on the outside for easy access and is virtually leakproof. Also, if you want to use a TPMS system, it makes it easy. Try as I would I could not get my hand through the wheel hole to install the senders. And god forbid if you should drop one between the wheels! And, FWIW, I consider TPMS an utterly essential piece of kit. Good luck.
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08-01-2018, 12:37 AM
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#5
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,117
THOR #7035
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Quote:
Originally Posted by Gary A
If you go with valve extenders use the solid metal ones and not the braided type and insure the valve stem on the tires are metal. I fought this for a long time until I went this route. Now I'm on top of it. In like Flynn.
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I have the braided type on my MH and have absolutely no issues; I even have TPMS sensors on them. They are attached to the wheel simulator with supports that are held in place by the simulator lug nuts.
BTW the kit at Amazon costs $50
https://www.amazon.com/Phoenix-USA-A.../dp/B004VRO19Y
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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08-01-2018, 12:43 AM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: 2016 Siesta Sprinter 24ST
State: Florida
Posts: 602
THOR #2812
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Tire pressure is checked with a straight in dual foot tire gauge. (trucks or RV's) Gauge pushes onto inside dual valve stem and pulls against outside dual stem. Same type chuck is used to inflate the tires. Available auto parts or online.
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U.S. Coast Guard retired- 1956-1985
Pensacola, Florida
2016 Siesta 24ST
1972 Moto Guzzi Eldorado
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08-01-2018, 12:51 AM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: 2016 Siesta Sprinter 24ST
State: Florida
Posts: 602
THOR #2812
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Should add. You have to remove the wheel simulators ( hub caps) to get to the valve stems. This tool helps.
Valve extenders are a good solution.
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U.S. Coast Guard retired- 1956-1985
Pensacola, Florida
2016 Siesta 24ST
1972 Moto Guzzi Eldorado
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08-01-2018, 12:58 AM
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#8
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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I have a similar system to Tfryman and have had no issues with it (including the TPMS).
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08-01-2018, 01:09 AM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,669
THOR #12231
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Wear gloves when your messing with the wheel simulars (Very sharp edges) or checking your pressure without valve extention. I cut two of my fingers bad the first time I checked mine. Now I have glove with my tire gauge and wear them everytime.
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08-01-2018, 02:24 AM
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#10
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Junior Member
Brand: Thor Motor Coach
Model: Gemini
State: Maryland
Posts: 9
THOR #12483
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Thanks to everyone for this requested information.
It has been well noted!
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08-02-2018, 07:27 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: 2013 31L
State: Florida
Posts: 2,181
THOR #908
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It took me a lot of battling different extenders and such over quite a long time until I finally come around to just taking the wheel simulators off mine and storing them....and throwing away all the extenders. Now I can just reach through the hand holes to get at the caps. I wish I'd done it day one.
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09-06-2018, 01:49 PM
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#12
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Senior Member
Brand: Thor Motor Coach
Model: 34F
State: Oklahoma
Posts: 628
THOR #8432
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Quote:
Originally Posted by Long & Winding road
Wear gloves when your messing with the wheel simulars (Very sharp edges) or checking your pressure without valve extention. I cut two of my fingers bad the first time I checked mine. Now I have glove with my tire gauge and wear them everytime.
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Yeah, the wheel simulator cap on the front wheel is too close to the valve on mine. After arm wrestling with it a coulple of times I got a big pair of pliers and twisted the sides of the cap valve hole to make it bigger. It's better now but only if I hold onto the air chuck instead of the locking valve air chuck.
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09-06-2018, 01:59 PM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: 37GT
State: Florida
Posts: 809
THOR #5246
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I'll just repeat what Pete mentioned. A TPMS (tire pressure monitoring system) is about the #1 piece of safety equipment for any RV, no matter if you are a weekend camper in the summer or a full time traveler. Knowing the exact psi and temp or all your tires is very important.
I would have a good tire shop change the stems to all solid metal and then pick up one of the TPMS. It will serve you well for years to come on about any RV you end up with.
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Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO
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09-06-2018, 02:47 PM
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#14
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Which brand of TPMS would you suggest?
(If you were buying a set...)
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"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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