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2010 Chevrolet Equinox LS FWD 4dr

2010 Chevrolet Equinox
Trim Info:
Front Wheel Drive, 4 Door, 2WD Sport Utility Vehicle
22 mpg city / 32 mpg hwy
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November 1, 2012, 6:38 am

Steven R

Question: psi in all tires of the suv

When my equinox is parked at the house over night when i go to check the tire psi, it is at 28 all 4, so i put in 31 psi and whithin a day all tires lower back down?

November 9, 2012, 3:43 pm

Ron W
Expert Mechanic

Tire PSI cage change up to 4 psi depending on the temperature of the tire. If you fill them after driving, the tires are warm and the PSI can drop over night when they cool, but will go back up when the tires are driven on again. If you check and fill them both after a drive, the pressure should be about the same. If they are low, you may have a slow leak.

Also something to know is most tire pressure gauges are not very accurate so it is important that you use the same tool the check them both times as you can get different readings from different gauges even though the pressure didn't change.

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