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i check my tire pressure every 3 weeks. my front right and rear right tires are always at least 5 to 10 psi low.my left tires only 2 to 3 psi loss what would cause this?

2007-01-27 08:19:38 · 27 answers · asked by thomas r 2 in Cars & Transportation Maintenance & Repairs

27 answers

You have a slow leak. Tires should not loose 10psi in three weeks. Check the valve by putting a little spit on it and see if it bubbles.

2007-01-27 08:23:58 · answer #1 · answered by Anonymous · 2 0

Typical ties lose pressure at about 2-3% / month. You should not be losing 2-3 PSI in three weeks, let alone 5-10. You might have a bad tire gauge.

Tires lose pressure in three places:
1) Through the inner liner
2) Through the valve
3) At the wheel (either at the rim line or through a cracked wheel)

If the tires have been on for a while, your most likely culprit is that dirt has gotten into your valve stem. Sometimes that can be cleared out by dropping your air pressure to 10 PSI and then re-inflating to the proper pressure. The large volume of air can sometimes blow out the obstruction. Also, make sure you're using valve caps. Believe it or not, they do help.

Temperature changes can account for some pressure change - a rule of thumb is 1 PSI for every 10 degree change, but that would have affected all four tires similarly. Also, this will sound crazy, but if the left side of the car is in the sun, you will definitely see a difference in tire pressure. Because they are black, tires absorb a lot of solar heat.

2007-01-29 11:41:39 · answer #2 · answered by pmk 2 · 0 0

You did not indicate whether you always check the tires the same way ie before the car is driven. Tire pressure will vary when the tires are warm(from driving) causes higher tire pressure. Tires in the sun are going to be higher than those in the shade.

It give more even tire wear if the passenger side had less air in them as well, are you always carring a passenger? Probably not. So why have those tires "balloon out" more - giviing wear to the centre of the tire instead of the whole tread.

If you are actually losing air(and replacing it at the pumps) to find it is gone again, you would probably have a bead leak. (Which means that the air is leaking past where the rim and tire contact - most times caused by heavy rust of the rim) A tire store or garage capable of installing tires, needs to take off the tires and wire brush the rims better and then they apply some sort of grease to make a better seal and then they put the tire back on.
Take what you will out of that info if it is of any help to you.

2007-01-27 16:38:39 · answer #3 · answered by ButwhatdoIno? 6 · 0 0

You must have a valve problem. check it.
i check the tire pressure every month and the pressure loss is from 0 to 1 psi. so even 2-3 psi is a lot of pressure loss

2007-01-27 16:32:39 · answer #4 · answered by curious_greek 2 · 1 0

There are many of reasons for your air loss and all should be looked at by an auto shop. Considering you have 4 tires losing more than 1psi a month I could probably assume two things: 1) you have aluminium wheels 2) you live in a climate that requires road salt to improve driving conditions. Aluminium is naturally very porous and reacts very quickly with salt leaving a contact surface that's not a good seal. An auto shop should be able to remove the oxidation and reduce air loss.

2007-01-27 17:14:31 · answer #5 · answered by psiseal 1 · 0 0

5-10 psi differance in 2-3 weeks = leak

2007-01-27 16:25:07 · answer #6 · answered by Big D 4 · 2 0

It's hard to tell. But look for obvious signs like a nail. It could be slow leak which is something you cant fix. Good to hear that you check your tire pressure regularly and make sure you look at the plate on your car door and inflate the tire to those specifications not the max tire pressure molded in the tire.

2007-01-27 16:24:24 · answer #7 · answered by nicewknd 5 · 0 0

Sounds like you might have run over something on the right side of the car that punctured your tires.. Remove them from the car and spray them with a water/detergent mixture, this will bubble where the air is getting out.
Also, it is possible that the valve is loose, you can check this the same way as above.

2007-01-27 16:38:18 · answer #8 · answered by Daremo 3 · 0 0

I am thinking it is a combination of things. Is your car parked on a sidewalk where you would be applying more weight on the other tires. I also think you may have two loose valves also.

Could be your weight and the weight in the trunk are on the same side.

2007-01-27 16:28:01 · answer #9 · answered by nyfalcon 2 · 0 0

Tyre pressures vary with temperature also there are losses from seals, valves, which can be made worse by bouncing up curbs etc. (Brits spell tyre differently to US)

2007-01-27 16:26:16 · answer #10 · answered by Anonymous · 0 0

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