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Old 08-27-2008, 03:53 PM   #1
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Tire slow leak

How often do you need to check the tire pressure on newer tires?

Seems like I have to add air every few days to keep them up above 32psi. Seems like they should hold better than that for longer. I am going to take the car into discount tire today and see if there is a slow leak somewhere, any suggestions on where to have them look and to make sure they don't try to blow smoke up my .....

Thanks
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Old 08-27-2008, 04:13 PM   #2
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Spray/dribble some water with dish soap around the bead as well as on/around the valve stem- then watch for bubbles
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Old 08-27-2008, 04:24 PM   #3
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Even when I didn't drive the Buick for a year the tires were still @ 30 PSI when I started to drive it again. I would get those tires looked at. Also have them look @ the rim. On my old 74 Chevy there was one rim that no matter what you did, the tire leaked. I even replaced the tire and the new one leaked. I put an inner-tube on that wheel and considered it done. Never had a problem after that.

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Old 08-27-2008, 05:19 PM   #4
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I took it in and three of the stems were shot and one had a nail in it so all four had issues. I guess living in phoenix I should get used to checking for dry rot. Thanks for the responses.
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Old 08-28-2008, 08:53 AM   #5
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Discount tire co? They have an ongoing recall on valve stems.
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Old 08-28-2008, 10:32 AM   #6
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Quote:
Originally Posted by alanchap View Post
I took it in and three of the stems were shot and one had a nail in it so all four had issues. I guess living in phoenix I should get used to checking for dry rot. Thanks for the responses.
The heat will kill tires fast!

1 psi loss a month is about average
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Old 08-29-2008, 04:50 PM   #7
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Valve stems should always be replaced when you get new tires, something I've had to specify before when getting new tires. Glad to hear you got your slow-leak issue resolved.
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Old 08-30-2008, 05:52 PM   #8
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I've also seen corrosion on cheap alum rims around the bead , the tires leak fast. Also on the electronic valve stems, they sometimes leak at the base after replacing a tire, they now have just the small seal available thats in between the valve and rim, you don't have to buy the $130 valve stem anymore.
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Old 08-30-2008, 08:28 PM   #9
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-over 1psi/month should be looked at.
-if a shop doesn't replace your valve stems with a new tire, take your stuff and get out.
-leaking or not, check your tires at least every month. that way you find out if you have a leak before it's visible (which is pretty low for most people).

I've found aluminum rims are usually OK for the first set of tires or 5 years. once they've been ground with a brushwheel to clean them or regular weathering for a few years they usually need to be cleaned/sealed every 2 years. (unless you have chrysler rims, then it's every 10 months. or chrysler chrome rims then it's every 3)
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Old 08-30-2008, 08:59 PM   #10
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The shop I went to said they replaced them and did not charge me because I am a long time customer, ok cool. Well today I decided to check there work. I found that the stems were not replaced and if you move them you can see large cracks.

I am going to try another shop, the one that I usually go to for my cars. They have gone down about 4psi each since I took the car in. I am frustrated but I guess that is to be expected when working with a national chain, the service is going to be hit or miss.

Thanks again for all the info here, it has helped me a ton with upping my mpg.
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