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I had a slow puncture a while ago and got the tyre replaced on my Renault Clio because it was bulging and non salvageable.

Since then I've been losing pressure in that tyre fairly rapidly.

I've had the tyre resealed 3 times now and I'm still losing pressure in the tyre (from full to flat in ~3 days even with no driving being done).

What else could be the cause? I'd rather not shell out for a new wheel and the mechanics say they don't know what's wrong with it.

Ilessa
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2 Answers2

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Obviously, this can be anything.

  • leak in the new tire
  • even a leak in the rim
  • leak between tire and rim (may be there's some dirt on the rim or a burr on the tire)
  • leak between rim and valve stud
  • leaky valve itself

You can do a soapsuds test (dish liquid water mixture) to find the leakage.

sweber
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If your rim is defective it can cause this. It could have a hole in it somewhere (welds and valve stem). If it is malformed it will lose pressure due to improper sealing. The malformation of the rim may be so subtle that it takes a while to lose pressure. From what you say I would assume the rim is defective. Lets not forget that just because the tire is new does not mean they can't be defective as well. "New" does not mean much because anything can be defective new or not. There are several tests you could do to see where it is leaking.

Get a spray bottle with a fine mist and spray around where your rim and tire mate. You'll have to watch very closely to see bubbles and listen for hissing. You can also fill the tire with a fine dye and observer where the leak is. other than that, you'll have to replace your tire and wheel to be absolutely sure you resolve the issue.

cloudnyn3
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