Tires losing air cant find a leak

[chuckp]

Tires losing air cant find a leak alum.wheel 99 chevy silver.

 

any thoughts

 

chuck

[Ben]

Assume you've done the water tank thing.

 

Other potential are small fracture of wheel and if multi part wheel, the sealing media & bolting. Valve stem.

 

Far out is tire going bad and tread speration, so air is getting out via small cracks in the rubber.

[Lou'sZ]

Make sure the valve core is screwed in tight!

[tmf6902]

I would say probably something in the vavle.

[UnderDawg]

 

Shouldn't be a problem. It's only flat on one side right?

 

[RyanbabZ71]

with winter upon us and the colder temps it is not uncommon for the tires to loose pressure especially with aluminum rims. My moms blazer manual even has a section about this problem

[Worktruck]

If I am not mistaken there was a recall on steel wheels that were cracking at the bead. Am not sure if it was as far back as the 99's though.

[99silveradoz71]

with winter upon us and the colder temps it is not uncommon for the tires to loose pressure especially with aluminum rims.

If memory serves me right, I believe it's 1psi for every 10 degrees.

[TedHam]

Not sure if this applies to your situation. I replaced the rear tires on my '01 Corvette earlier this year. Shortly after the replacement, I discovered a leak in the right rear tire. Fortunately for me the tire sensors caught it. I kept airing the tire up until I could get it to a shop. The first shop performed the submerged test and couldn't find the leak. Charged me $8 for the pleasure. I then took the car to a tractor/truck implement store that specializes in tires. These guys are low-tech but they 'know' tires. They did the submerged test with one variation; they didn't add air to the tire. This time the leak was found; one of the balancer weights were bent where it fits between the tire and wheel. The tire would lose about 1lb per day until they were down to about 28psi and then drop 4psi per day. The symptom was corrected by over-inflating since that was sufficient to seal the tire to the rim. It was only after losing some pressure the leak was apparent.

 

The tractor/truck store got a good chuckle out of the story as the (Firestone) tire store didn't use good common sense (who drives their tires around way over-inflated). The tire only was leaking at lower/normal pressure.

 

Bottom line, the shop replaced the balancer weight with a good one, tested for leaks and the tire stopped leaking air.

 

P.S. I traded the vette for the Silverado upon return to FL in August '03.

 

Good luck with your tire problem.

[LogixRat]

Not sure if this applies to your situation.  I replaced the rear tires on my '01 Corvette earlier this year.  Shortly after the replacement, I discovered a leak in the right rear tire.  Fortunately for me the tire sensors caught it.  I kept airing the tire up until I could get it to a shop.  The first shop performed the submerged test and couldn't find the leak.  Charged me $8 for the pleasure.  I then took the car to a tractor/truck implement store that specializes in tires.  These guys are low-tech but they 'know' tires.  They did the submerged test with one variation; they didn't add air to the tire.  This time the leak was found; one of the balancer weights were bent where it fits between the tire and wheel.  The tire would lose about 1lb per day until they were down to about 28psi and then drop 4psi per day.  The symptom was corrected by over-inflating since that was sufficient to seal the tire to the rim.  It was only after losing some pressure the leak was apparent. 

 

I had a Vette several years back and had the same type of problem. I bought it used and it was wrapped with 2 month old BFG rubber all the way around. The back driver's side kept leaking, so I took it to a shop to get repaired. We could never find the leak, so I just ended up buying a replacement tire. Back then $175 for a tire seemed like a lot more than $175 today. I was severly hacked off, especially considering they were a BFG dealer and could easily tell the tires hardly had any wear. But they wouldn't do nothing w/o a receipt.

 

Now I wonder if all I needed was a new balance weight. Oh well, I guess hindsight is 20/20.