Are leaky valve stems covered under warranty?

[Oldfart]

I started losing about a pound a day last week. Pulled the wheel today and it's the base of the valve stem. It wasn't too hard to find it once I spayed everything, it bubbled in less than a minute. I've never seen how the TPMS is assembled, I'm assuming the valve stem can just be screwed out and replaced? Thanks.

 

[JohnyPython]

As far as I know, the valve stem is pulled through the back of the rim and had a tight seal in the back.



The TPMS sensor is screwed into the valve.

You could try gently pulling on the valve - maybe it’s not seated.

Or replace the valve and screw the original sensor in.

 

[Jakenbake]

If you hand wiggle the valve stem did it leak worse?

My first thought would be loose valve stem core, but based on your leak detection I does look like most is around the base.

 

[CoronaRaptor]

You've been rubbing and tugging on the stem too much when you're cleaning it. It's releasing the load, after being under pressure!

 

[Oldfart]

I ran the wheel to the dealer and they pulled it apart and replaced the stem under warranty. I'm assuming some bad stems got out. I had a snow plowing guy here yesterday that I hired for the season, he has a '20 Explorer ST with 6,000 miles. He just got done having a leaky valve stem replaced also. At least it's a super easy fix.

 

[JohnyPython]

Lucky you didn’t blow a seal.

 

[MRV99]

Valves stems leak sometimes. Cheap and easy fix with no drama. On my track setup I have them do the rebuilds when a new set of rubber get mounted but then again, it sees much higher temps and stress. Don’t want to loose air while pushing 150’s

 

[Winchester30]

Lucky you didn’t blow a seal.

… or need a rim grind.

 

[MurderedOutSVT]

… or need a rim grind.

Or Might need a rim job

 

[Oldfart]

Or Might need a rim job

I don't think rim jobs are covered by Ford. I know I asked at PT a few weeks ago if I could get them to prescribe a cute young Asian massage girl for my screwed up back. They told me my insurance doesn't cover that.