Losing air pressure slowly from one tire - Nissan Murano Forum
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post #1 of 13 Old 03-23-2011, 10:35 PM Thread Starter
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Losing air pressure slowly from one tire

The TPMS warning light came on this morning and I checked all the tires and found one with a pressure of 27- all the rest were at 36
I put air in the tire and the light went out within the first minute of driving.

I remember reading on the forum there might have been a recall of the valves that I believe were degrading on 2009 models and wondered if this might be the cause of the slow leak.

I searched the forum briefly and couldn't find the thread. I am leaving for a trip to Boston area tomorrow and I am considering scheduling an appointment at the local dealer up there to take look. If there is a service bulletin on this, it would help to know ahead of the appointment.

It may actually be the tire and not the valve I suppose, in which case I'd appreciate advice on whether to get the Nissan dealer to look at this. I dont know if the TPMS needs to be reset if the tyre is taken off the rim- and whether its better to let the dealer do this rather than take it to a discount tire chain.

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post #2 of 13 Old 03-23-2011, 10:46 PM
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I'd say you have a nail or screw in that tire, and thats what is causing the slow leak. Simple answer trumps more complicated one (bad valve).

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post #3 of 13 Old 03-23-2011, 11:04 PM Thread Starter
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Thanks for the quick response.
If it is a nail, will I need a new tire?

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post #4 of 13 Old 03-23-2011, 11:05 PM
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Quote:
Originally Posted by brooklynmurano View Post
Thanks for the quick response.
If it is a nail, will I need a new tire?
The tireshop will tell you for sure. If its right smack dab in the middle of the tread, it can be patched. If its near the sidewall, it cannot be patched and you'll need a new tire. If the other three tires are also mostly worn, just get a brand new set of four.

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post #5 of 13 Old 03-24-2011, 09:35 AM
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I have an early 2009 and haven't had any problems with my TPMS. I'm on my 2nd set of tires but still using the original TPMS. As Eric mentioned, sounds like a slow leak from the tire and not the TPMS. My wife's car, different make and model, has the exact same problem as you describe. I've taken the tire off a couple times and very closely examined it and can't see any object causing the leak, but over a couple of months time she will tell me that the TPMS light is on again. I just inflate the tire back to normal and the light goes out and no problem.

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post #6 of 13 Old 03-24-2011, 10:13 AM
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Use some soapy water to find the leak.
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post #7 of 13 Old 03-24-2011, 10:44 AM Thread Starter
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I've seen the soapy water test used and will try that.

If anyone recalls there being q service bulletin on the 2009 valves corroding please let me know. We has a lot of salt on the roads this winter and my Murano is parked on the street so it has been especially tough to keep the wheels clean.

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post #8 of 13 Old 03-24-2011, 10:50 AM
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Knowledgebase - Murano - Nissanhelp.com Forums

Check out service bulletins there^^^
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post #9 of 13 Old 03-24-2011, 01:40 PM Thread Starter
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Thanks - very useful

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post #10 of 13 Old 03-24-2011, 08:53 PM Thread Starter
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It was a nail. The Nissan dealer I use up near Boston found it. I assume they removed the wheel to find it. They patched the tire and charged me $20

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post #11 of 13 Old 04-10-2011, 07:40 PM
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I had that problem with a new set of tires a while back - it was the wheel weight causing the problem, when it was mounted, the clip edge of the weight did not let the tire seal properly against the wheel. Removed the weight and reattached it, then it was fine.

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post #12 of 13 Old 04-11-2011, 03:17 AM
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that kind of drop in pressure is usually audible... I had a nail in my tire and it dropped to 28psi in a few hours and I could hear a very small hiss...

found the nail and plugged it w/ a tar stick....

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post #13 of 13 Old 04-11-2011, 10:23 AM
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Air leak

I had a slow air leak on my 2006. I tried the soapy water tactic to great lengths and couldnt find the leak. I could only find the leak when I started hearing the air coming out one day. I had a pin-hole in the deepest part of a very thin tire sipe/tread. When the tire was sitting a certain way the tread would squeeze the pinhole shut, at other times it would leak air.

Once I found the leak I easily plugged it with a kit from Wal-Mart. Didnt even take the wheel off for this.

My recommendation is to watch it carefully, add air when needed until
you can either hear the sound or until the soap test works and you
see bubbles.

Or put your mind at ease with a new tire.
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