Recurring Tire Preasure Loss

[jgruberman]

I have 35" Toyo Open Country M/T and keep the fronts aired up to 50PSI. The last few days, JUST the driver side has been down towards 34PSI. I air it up when I get home to 50 but by the next morning, it's back down to 34. The pressure is fine for the rest of the day.

I checked the tire and don't see anything stuck in it causing a slow leak, but it's also weird it goes down to mid 30s and not lower. Also it's been in the 30-40s lately, but the other tires aren't losing nearly any air daily short of a PSI or two which balances back when the air warms a bit.

Any ideas what's going on? Valve stem?

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[OneTon]

If there are no obvious objects that punctured the tire, I would focus on the valve stem. Air the tire up to max psi and spray some soapy water around the stem. It'll bubble if there is a leak.

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[jgruberman]

If there are no obvious objects that punctured the tire, I would focus on the valve stem. Air the tire up to max psi and spray some soapy water around the stem. It'll bubble if there is a leak.

That's what I was thinking... it just seemed like an odd characteristic to stop deflating after a certain temperature.

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[watersupply189]

Spray some soapy water on the valve stem. It will tell you if it’s leaking or not friend.


2016 Ram Laramie 3500 (DRD), G56, 6.7, Rough Country Leveling, HID headlights, Morimoto LED fogs plus a whole lot more!

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[TH-64]

Take the valve stem cap off and spit on the valve core.

...see if it bubbles.

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[OneTon]

That's what I was thinking... it just seemed like an odd characteristic to stop deflating after a certain temperature.

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Cold temperatures cause shrinkage.
Pun intended. haha

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[timshooter40]

I had same issue not to long ago, drove me crazy nothing in tire,valve stem didnt leak but every day tire lost air pressure. Final out come was leaking around bead I had to take tire off clean bead ,clean tire edge and remount tire. Problem solved. Might be a bead.

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[Custom Offsets]

As most have listed, the valve stem/schrader valve problem. or a dirty tire bead seat!

Valve stem is easy as listed above, soapy water! Spray it on, see if it bubbles.

or around the edges of the bead for a possible bead leak.

Cold temperatures do weird things to tires!

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[jgruberman]

As a follow up to this, it wasn't the valve stem....it was a VERY elusive little brad/nail.

I thought a visual check was good enough, but the soap and water did what my eyes couldn't!



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