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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!

Popular FAQ

FAQ – How To Replace a Honda Axle

Torn axle boots or damaged joints are some of the most common problems in high mileage vehicles and can cause clicking noises when you...
LS1 powdered-metal cracked-cap connecting rod showing the fractured cap mating surface

What Are LS1 Cracked-Cap Connecting Rods? How GM’s Fractured Rod Design Works

Factory LS1 connecting rods use a **powdered-metal cracked-cap design** with uniquely matched fracture surfaces. Learn why rod caps must stay with their original rods, how the design works, and what to inspect before reusing factory LS1 rods.
Modern vehicle infotainment system displaying an AM radio station as Congress considers requiring AM access in new cars

Congress Moves to Require AM Radio in Every New Car

The House has passed legislation that could require AM radio in every new vehicle. Here’s what the bill mandates and why EV electronics complicate reception.
Automotive PCM pull-up and pull-down circuit diagrams showing open and grounded sensor voltage readings

Automotive Pull-Up and Pull-Down Circuits Explained

An automotive pull-up circuit uses a resistor to hold a module input near a known voltage when no sensor, switch or transistor...

How to Change your Auto Transmission Fluid

Transmission problems can be a headache. When your automatic transmission has a faulty controller or is low on transmission fluid, it can cause the...

How To Swap a B Series

Learning how to swap a B series into anything isn't as hard as you might think, and our guide to DIY Honda engine swapping...

How To Replace a Ford Excursion Fuel Filter

Your Ford Excursion fuel filter is a vital part of your engine fuel system. It's primary function is to remove the particulate and debris...

Commonly Asked Alcohol Injection Questions

Alternative fuel options such as alcohol injection, E85 and race fuels have always been a part of tuning your turbocharged or supercharged vehicle. Adding...