Tire Pressure Gauge
Tire Pressure Gauge Some vehicles are designed with a built in tire pressure sensors. These sensors are used to monitor the air pressure in all tires. If a tire has low air pressure the vehicle will illuminate a warning light on the dash. Occasionally the monitoring system will need recalibration; this procedure is different for every car. Consult an online repair manual for your specific instructions.
Electronic Tire Pressure Gauge To use a tire gauge, remove the protective dust cap from the tire's valve stem, then insert the tire gauge and press firmly. The gauge will read the pressure inside the tire, add air as needed and recheck. Pressure readings will differ due to change in temperature. Example: If tire pressure is 30 pounds @ 60 degrees it would be about 35 pounds @ 90 degrees, about 5 pound for every 30 degrees. This is a rough estimate because the volume of the tire determines the actual variance amount. Store the tire gauge in a cool, dry place. To determine the proper amount of air pressure for a particular tire, consult the sidewall of the tire. Tire Specification Identification