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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

Chase Briscoe leads Kyle Larson during the 2026 South Point 400 at Las Vegas Motor Speedway.

Chase Briscoe Dominates Las Vegas—and Survives Larson’s Final-Lap Charge

Chase Briscoe led 175 of 267 laps, swept both stages and survived Kyle Larson’s final-corner attack to win the 2026 South Point...
2026 Hyundai Ioniq 9 with its rear door open during inspection of the powered second-row seat

Hyundai Ioniq 9 Recall: Powered Rear Seats May Trap an Occupant

Hyundai is recalling 5,360 Ioniq 9 electric SUVs because powered rear seats may fail to stop after contacting a person. Here are the affected trims, owner precautions and software remedy.

FAQ : Everything About Motor Oil

Choosing the best motor oil is a topic that comes up frequently in discussions between motorheads, whether they are talking about motorcycles or cars....

How To Test a Ford Mustang Cobra TPS

There can be many reasons for you to test your throttle position sensor in your Ford Mustang. The throttle position sensor (TPS) may have...
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.

FAQ – Nissan 300ZX Turbo ECU Pinout

The 1992-1995 Nissan 300ZX burst onto the scene back in the early nineties and took the automotive world by storm. Winning Motor Trend's Import...

How To Test a 420A Coil Pack

The DOHC 2.0 liter non turbo engine found in the 1995-1999 Mitsubishi Eclipse, Eagle Talon, and Dodge Neon is also known as the 420A engine....

FAQ – What is the Nissan JDM CA18DET?

One of the more underappreciated and understated JDM engine sets is the Nissan JDM CA18DET. The CA18DET is a 1.8 liter turbocharged four cylinder...