Really slow puncture?

micks_address

Hi folks,
New Michelin cross climates tyres fitted about a month.. Two weeks ago tyre deflation light came on car.. Checked and back right tyre at 26 psi.. Pumped to 32 and reset indicator. All good till today and light came on again.. Checked pressure and it was at 28.. Will pop into tyre fitter tomorrow but sounds like could be tricky to find if the pressure is only coming out so slowly? Could it be a valve or something?
Thanks,
Mick

Skatedude

Bit of detergent mixed with water in a spray bottle, spray all around the rim,the valve and have a look for bubbles.

But you might not see anything if the air is leaking around the back of the tyre.

jca

Let the tyre fitter worry about it, probably a nail or something that they'll find in a few minutes.

cml387

It's amazing how a big nail still lets the air out quite slowly. The tyre guys can fix it quickly. Better that than have to change it on the side of a motorway.

jca

cml387 wrote: »

It's amazing how a big nail still lets the air out quite slowly. The tyre guys can fix it quickly. Better that than have to change it on the side of a motorway.

Very true. I spotted a nail in the rear tyre and kept saying I'll get that done until the inevitable happened and I heard this clatter as centrifugal force threw the nail out of the way to a hospital appointment. The tyre went down in seconds... I sorted it then!!! Much kicking and swearing trying to get the welded alloy off the hub didn't help either. P.s. I hate the look of those cross climates.

shietpilot

It's probably leaking through the valve stem on the wheel! I think they are supposed to replace them when changing the tyres. Maybe he forgot or didn't tighten it properly?

jimbis

Could also be leaking on the rim, it's very common. a bit of rubber, dirt or even a slightly damaged rim can cause this after a new tyre is fitted. Nothing a bit of bead sealer won't sort but sure your tyre lad will sort that.

micks_address

Turned out to be a nail... Being fixed right now.. First puncture in 20 years driving miffed it happened on new tyres but what can you do. Nail in thread in a couple of inches so no problem to fix.
Thanks
Mick

I've had a slow puncture for about a year now and just feel its not worth bringing in as its so slow. Pumped to 34ish PSI it only deflates to about 29 or 30 psi (when the warning comes on) after about 3 weeks or so. Would they be able to find a puncture this slow?

Need two tyres soon (not including the one that's losing a bit of air) so might get them to have a look when I'm there anyway for the tyres.

HeidiHeidi

I had a similar slow puncture on a new car (ie new tyres) recently - stuck it out for about six months pumping it up about every two to three weeks - finally gave in and called in to a tyre place and there was a HUGE screw embedded in the tyre :eek:

I'd never have thought the air would trickle out so slowly from something that big!

Anyway, 20 minutes and a tenner fixed it, and not a bother since.

biko

The last two slow punctures I have had were both bad valves. Fortunately easily fixed by my local FastFit for free (I made some vague promise to buy tyres there at some point in the future, perhaps)

DakarVert

Astrid Hot Gymnast wrote: »

I've had a slow puncture for about a year now and just feel its not worth bringing in as its so slow. Pumped to 34ish PSI it only deflates to about 29 or 30 psi (when the warning comes on) after about 3 weeks or so. Would they be able to find a puncture this slow?

Need two tyres soon (not including the one that's losing a bit of air) so might get them to have a look when I'm there anyway for the tyres.

Pop off the wheel yourself and take it in, More than likely a bit of bead sealer and it'll be fine.

Mine went from 30 to 26 over a week and wouldn't go any lower... Been fine since.

tomaso11

HeidiHeidi wrote: »

I had a similar slow puncture on a new car (ie new tyres) recently - stuck it out for about six months pumping it up about every two to three weeks - finally gave in and called in to a tyre place and there was a HUGE screw embedded in the tyre :eek:

I'd never have thought the air would trickle out so slowly from something that big!

Anyway, 20 minutes and a tenner fixed it, and not a bother since.

ooops! I'd better check mine as I've been doing the same as you:)

micks_address

Tyre deflation light came on last night on way home from work... reset at home as figured might be just from tyre being pumped etc... but came on again this morning on way to work... will swing by the tyre fitters again this evening...

jca

micks_address wrote: »

Tyre deflation light came on last night on way home from work... reset at home as figured might be just from tyre being pumped etc... but came on again this morning on way to work... will swing by the tyre fitters again this evening...

The same wheel? Is the tyre actually gone down or is it a faulty/ damaged sensor?

micks_address

Tyre centre checked at lunch time... pumped all wheels to correct pressure... reset indicator.. should be fine hopefully

737max

I have a slow leak on a tyre between rim of alloy and tyre. removing tyre and remounting it didn't help. In 6 weeks of non-use the tyre will drop from over 30psi to under 20psi and that has been happening for the last year.

I also find that over the 6 months my summer tyres have been on my car that the pressure has dropped and on these cold days the TPMS light is illuminated until the tyres warm up. Winter tyres are going on in a week or two so not worried.

laoisfan

737max wrote: »

I have a slow leak on a tyre between rim of alloy and tyre. removing tyre and remounting it didn't help. In 6 weeks of non-use the tyre will drop from over 30psi to under 20psi and that has been happening for the last year.

I also find that over the 6 months my summer tyres have been on my car that the pressure has dropped and on these cold days the TPMS light is illuminated until the tyres warm up. Winter tyres are going on in a week or two so not worried.

Perhaps the rim is the problem and not the tyre?

R.O.R

737max wrote: »

I have a slow leak on a tyre between rim of alloy and tyre. removing tyre and remounting it didn't help. In 6 weeks of non-use the tyre will drop from over 30psi to under 20psi and that has been happening for the last year.

I also find that over the 6 months my summer tyres have been on my car that the pressure has dropped and on these cold days the TPMS light is illuminated until the tyres warm up. Winter tyres are going on in a week or two so not worried.

I had this years ago on an old car - had the tyres removed and refitted loads of times, but pitting on the alloys was letting air out.

1 can of tyreweld across all 4 tyres sorted the issue out. Must have plugged the small gaps that bead sealer wasn't able to. For about €10 it's worth a shot.

737max

The wheel was resprayed and is in good order so it looks like tyreweld will be my solution if I ever get around to using the car again. The other set of spare identical alloys which I have haven't been resprayed so I'm sticking with the nice clean ones.

laoisfan

737max wrote: »

The wheel was resprayed and is in good order so it looks like tyreweld will be my solution if I ever get around to using the car again. The other set of spare identical alloys which I have haven't been resprayed so I'm sticking with the nice clean ones.

resprayed or dents/imperfections removed & resprayed? There's a difference.

737max

resprayed on wheels which previously didn't have a problem.
Not very worried about this, just adding my experience of similar problem for others.