Deranged Wheel?

[Gully]

i have weird problems with my front passenger side tyre. most of the time it is fine but then suddenly over night it becomes completely flat. when i try to pump it up at the station, it doesnt pump up as you can feel the air escaping between the tyre and the alloy wheel. however, when i get it checked at a tyre shop they cant find any cuts and they manage to blow it up fine, only for the whole process to happen again days later!

any ideas?

[LEX200sport]

Maybe a leaking valve? Or it sounds like the tyres not sealing properly? Gotta be one or the other if theve checked for a puncture and not found one.

[Lex-aholic]

Not a dodgy/cracked lip on the outer edge of the rim ? Have a look. I hope I'm wrong.

[Tony-Bones]

How long has the tyre been on the rim, and have you had it balanced recently

[crazylex]

Never done this but the thought just came to me ..

Fill the bath, take it off and then submerge the bottom part and rotate it until any air bubbles come out.

May be put a towel underneath just in case - wouldn't want to upset anyone !!!

[Gully]

well, i have had the value changed so cant be that...

i got the garage to do the water test but none leaked out so cant be that either...

the tyre has been on the rim since I bought it which was Aug last year. could it be a balancing problem or something?

[lexus boy]

have you looked for a hole in the rim?

i had this problem