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Looking for help with your vehicle? Do you see the dreaded check engine light on? have a problem with your car or truck and need a find a DIY guide? Our collection of How To articles can help you save money and time and get back on the road. No matter what issues in your vehicle you can find the how to tutorial to help you.
Whether you car problems are simple or complex, our guides are here to help. With just a digital multimeter at your side, you can test and diagnose most of your car issues with our How To articles. One of the other tools that is a must have when you want to fix a car yourself is the OBDII scan tool.
These tools quickly connect to your OBDII vehicle to read the Diagnostic Trouble Codes that are stored in your engine computer. Need a How To guide but can't find it in our archive? Leave us a comment or message us and let us know, we'll be glad to help!

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Volkswagen Mission Efficiency electric prototype demonstrating its aerodynamic 0.158-drag-coefficient body.

Volkswagen’s Mission Efficiency EV Sets a 0.158 Aerodynamic Record

Volkswagen’s Mission Efficiency prototype pairs a record-setting 0.158 drag coefficient with a modest 54.9-kWh battery and production-derived ID. Polo hardware.

How To Prep Car for Paint

Knowing how to properly prepare a car for paint is one of the biggest and most important steps to enjoying a great looking paint...
A fusible link is a short section of specialized wire that protects a vehicle’s high-current circuits. Learn how it differs from a fuse and how to test it.

What Is a Fusible Link? Fusible Link vs. Fuse Explained

A fusible link is a short section of specially designed wire that protects a vehicle’s high-current electrical circuits. If excessive current flows...

How To Reset a Toyota Corolla Maintenance Light

The warning lights on your dashboard or instrument cluster can often unsettle drivers, after all who wants to see a check engine light or...
how diesel engines work

FAQ : How Diesel Engines Work

When it comes to diesel engines, there's a fair bit of misinformation that can confuse you. Although it is still an internal...
Automotive wiring load test showing 12 volts with no load and voltage collapsing under load due to a corroded high-resistance connector.

How to Load-Test Automotive Wiring: Why 12 Volts Doesn’t Mean the Circuit Is Good

Seeing 12 volts at a connector doesn't prove the circuit is healthy. Learn how automotive wiring load tests expose corrosion, weak terminals, damaged wires and other hidden resistance.

How To Build a MBC

Manual boost controllers are as old as the technology of turbocharging but every bit as useful as they were in Day 1. What the...
Acura RSX high-idle diagnosis showing throttle body, vacuum leak, IACV and scan-tool data

What Causes an Acura RSX to Idle Too High?

A warm Acura RSX should not remain at 1,500 or 2,000 RPM. Diagnose vacuum leaks, throttle operation, IACV control and PCM sensor data before adjusting anything.