Tire Pressure? - Chevy Traverse Forum: Chevrolet Traverse Forum
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post #1 of 36 (permalink) Old 09-26-2010, 11:37 PM Thread Starter
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Tire Pressure?

I had my tires rotated at Tires.com places and they must have to changed my pressure all to 31. I got my onstar report saying my tire pressure was "low" from 35 to 31 psi.

Anyone know which is correct?
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post #2 of 36 (permalink) Old 09-27-2010, 12:45 AM
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Re: Tire Pressure?

Tire pressure probably varies depending if the car has 17", 18", or 20" wheels. The correct tire pressure for your vehicle is on a sticker at the driver's door jam.

My Traverse has 20" wheels and the sticker specifies 35 psi at all four corners. Also, that's COLD pressure. I check mine sometimes at 35-36 for all 4 tires when I first get in the car and again a half hour later and get readings of 37-38 in heated up tires. Ambient temperature, road surface, and road temperature all affect the amount the temperature increases while driving.

Good luck.

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post #3 of 36 (permalink) Old 09-27-2010, 02:21 AM
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Re: Tire Pressure?

If Onstar is saying your pressure is low, it's a fact. 35 is the pressure.

Bob

2009 Silver Ice LS FWD<br />Built 6/3/09<br />1951 Chevy Styleline Deluxe 2 dr. Mayland Black<br />Built 7/1951&nbsp;&nbsp; <br />1951 Chevy Sport Coupe 2 dr. Trophy Blue<br />Built 12/1950<br /><br />"Too many people spend money they haven't earned, to buy things they don't want, to impress people they don't like" .... Will Rogers
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post #4 of 36 (permalink) Old 09-27-2010, 12:35 PM
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Re: Tire Pressure?

yes- 35 should be it.
like he said-
Look at your drivers door- theres a decal with the air pressure.
Take air pressure readings- when tires are cold. (morning- after cars been sitting).

But I want to point something out---
you said they rotated your tires....
Unless they looked somewhere for the specs---- I doubt they torqued the lug nuts to spec. (anyone know if tire places like these look up values?-- or they just use an impact wrench and tighten them on)

I would really consider buying a Torque wrench- and tightening them to specs.

The concern is that they over torqued- or put diff amounts of torque on each lug nut--- this-- leads to the rotors Warping...
which gives you the steering wheel shake-- and pulsating of the brake pedal.

I would invest in one--- and loosen them-- and tigheten them up to spec.
It could save you the trouble of the rotors (which from what I hear- are thin- and turning them is almost impossible)---- meaning youd need to get new ones to get rid of the vibration



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post #5 of 36 (permalink) Old 09-27-2010, 01:18 PM
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Re: Tire Pressure?

OnStar get the reading at night when you tires are cold I gotten two notices saying my pressure is low when I check it during the heat of the day it's fine.

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post #6 of 36 (permalink) Old 09-27-2010, 02:33 PM Thread Starter
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Re: Tire Pressure?

I checked with Wheel Works and they said they torque to specs.
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post #7 of 36 (permalink) Old 09-27-2010, 02:45 PM
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Re: Tire Pressure?

Quote:
Originally Posted by mdcj7
OnStar get the reading at night when you tires are cold I gotten two notices saying my pressure is low when I check it during the heat of the day it's fine.
Ive noticed that about every 30 days- Onstar- runs the 'check'- 1st thing when you turn on your car in the AM.

Im at work- and ill get an email about 830- with the pressure readings from her car- since she leaves to work- after me in most cases.

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L- 180,000
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post #8 of 36 (permalink) Old 09-27-2010, 02:48 PM
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Re: Tire Pressure?

Quote:
Originally Posted by tomme12
I checked with Wheel Works and they said they torque to specs.

Cool.
I wonder if they use something like ALLDATA for the specs.
Ive been told that some places use special attachments that bend when they reach a certain torque.
They are color coded apparently.

But many tire places Ive never seen them dial up a particular torque....
I just see the guy go at it--- brrrrr--- brrrrrr- brrrrrr --- you know that tire shop sound.

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L- 180,000
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post #9 of 36 (permalink) Old 09-27-2010, 06:59 PM
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Re: Tire Pressure?

Quote:
Originally Posted by mdcj7
OnStar get the reading at night when you tires are cold I gotten two notices saying my pressure is low when I check it during the heat of the day it's fine.
Onstar doesn't get my pressure readings at night ...... the Traverse is garaged and there is no signal in the garage.

Bob

2009 Silver Ice LS FWD<br />Built 6/3/09<br />1951 Chevy Styleline Deluxe 2 dr. Mayland Black<br />Built 7/1951&nbsp;&nbsp; <br />1951 Chevy Sport Coupe 2 dr. Trophy Blue<br />Built 12/1950<br /><br />"Too many people spend money they haven't earned, to buy things they don't want, to impress people they don't like" .... Will Rogers
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post #10 of 36 (permalink) Old 09-27-2010, 10:35 PM
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Re: Tire Pressure?

The other thing to remember is that when your tires are rotated, the sensors inside the wheels that transmit pressure to the TPMS change places.

They have to be reset so the system knows which sensor is at which corner.

2011 GMC Terrain SLT-1, Mocha Steel Metallic w/ Brownstone leather interior<br />2011 Toyota Prius V, Black w/ gray leather and every available option<br />2001 Miata SE, Red w/ tan top<br /><br />"The problem with socialism is that sooner or later you run out of other people's money,"&nbsp; ~ Margaret Thatcher
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