From cold weather to road debris, there are many reasons your car's tire pressure might be too low. Here's why you should have a gauge and know how to use it.

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There are a good variety of tire pressure gauges now available in the market. Take a look at the top 10 best tire gauges below.

Diagnostics are the essential first step in A/C-system servicing. To get started you'll need an A/C manifold-gauge set, a thermometer, and a leak detector. The manifold gauges will allow you to ...

This month we will provide you with detailed troubleshooting diagnostics using the A/C-gauge set. This will help you to understand the role pressure plays in different parts of the system.

To find out if your exhaust system is blocked, you can measure the exhaust back pressure with a back pressure gauge. Generally, when idling, exhaust back pressure should not exceed 1-1/4 PSI.