Dually valve stem cap!!!
 

Ok, I give. What is the secret to removing the valve stem cap that points inward on the duals?! I simply cannot get my hand through the hole in the rim. I have to draft one of my daughters each time I want to check the tire pressure!

Personally I would look around for some sort of extenders. Something like this: https://www.amazon.com/Slime-20140-Ex.../dp/B008FHWZIA or these: Wheel Masters: Dual Tire Inflation Systems

I have a Pressure Pro tire pressure monitor system. So I only have to take the sender off when it needs more air. And the senders are much larger diameter than a valve cap so not that huge of a deal to remove. I really like having a pressure monitor system. You might want to look into getting one.

lots of people complain (or is it worry) about valve extensions, i guess if theyre not anchored they could some loose & leak down, don't know how that could be - as I've never had a TPMS sensor on any of my 10 tires ever come loose.


on my inside duels i can reach my valve stem / TPMS sensors by reaching in between the tires/wheels...not necessarily the easiest (or potentially cleanest) task but again i usually only have to do it once a year...and when i do it i change the sensor battery (prematurely) at the same time.

Like Bob (above) i have TPMS sensors (our TST system also measures Temperature as well as pressure) - the only time i remove the valve stem based sensor (maybe once a year when the temperature drops) is when the monitor reports a tire needs air.

I'm not endorsing Pressure Pro either. I thought they were the best system when I bought mine back in 2010. Now I'm not so sure. But I do think any system is much better than no system.

I'm not slighting one system over the other.

I am in complete agreement - a system is better than none AND i mess with the tires (and associated hoses) a LOT less with a TPMS system. I used to check the tire pressure EVERY trip....and someone times before we leave for our return....NOW i just turn on the TPMS Monitor / Display and add pressure to the tire that needs it (usually NONE need air).

I have the newest version of the TST system and they have a flow though sensor so you don't even even have to remove it to add air.
TST 507 Flow Thru - Tire Pressure Monitoring Systems - Truck System Technologies
I see they also have extender hoses and rigid 180 or 135 degree stem extenders on the site now.

I had considered that TST system previously. I think I will look into that further. Thanks

Worth every penny for peace of mind for those of us that are neurotic about checking the tires. You still need to do a visual walk around every time you stop like normal, but no more crawling around with the gauge all the time, or worrying about it if you didn't. Also we have discussed many times here that saving just one tire by catching a repairable leak vs. the tire blowing out will pay for the system.

Can a truck tire be plugged like an auto/light truck tire, or does it require a professional repair?

They can be plugged from the outside like a light vehicle tire, but most tire shops do not recommend this. The proper repair is to plug the hole and then patch it from the inside or use one of these:

Uni-Seal Plug/Patch Combination Units

I used to plug truck tires all of the time when I managed a drilling rig moving company as sometimes you just don't have time to dismount and "properly" repair a small nail hole. We found that if a plug wasn't going to hold it would fail before we got the tire blown back up to full pressure. So for the relatively light use we put on the drive tires of our coaches I would do it and not worry. Steering tires I would plug to get out of a bind and get properly repaired as soon as possible.

Very good. I'll add my tire plugging kit to to the emergency gear list.

had i NOT had the TST system i wouldn't have KNOWN about a slow leak (cracked valve stem at the thread/wheel mount)....I was able to determine i was loosing air, and that the leak wasn't bad enough that i couldn't drive it to a tire store to have the valve stem replaced (free).

I also carry a plug kit....for emergency use...and i plug (our automobile tires as needed)....at least w/ the TST (or any other TPMS) system you'd be able to monitor the PLUGED tire to determine if it was leaking after the repair.