We're a bunch of car enthusiasts at 1A Auto, plain and simple. Between us, we have decades of automotive experience from working on and fixing vehicles, buying parts, and from just living and breathing everything about automobiles and trucks. Now, we want to share all of the expertise and knowledge we have accumulated over that time with you! Here you'll find a wealth of automotive resources including 101s on parts, repair and maintenance tips, buying guides, information about makes and models, general help, and much more.

NASCAR Driver Spencer Boyd and 1A Auto Partnership

Empower Video Series

Car Knowledge 101

General Knowledge

Car Part Terminology
OEM vs Aftermarket Auto Parts
Understanding Vehicle Identification Numbers / "VIN Numbers"
Truck Cab Styles Explained
Low Tire Pressure in Cold Weather
Tire Size Guide—What the Letters and Numbers Mean
What Is OBD II and How Does It Work?
Short Ram Vs. Cold Air Intake Systems
Why Do Car Batteries Die in Cold Weather?


Part-Specific Knowledge

Wheel Hub

Wheel Bearings & Wheel Hubs 101: What They Are And How They Fail


Steering and Suspension

Shocks Vs. Struts
Control Arm Basics
How Does Power Steering Work?


Lighting - Headlights, Tail Lights, Fog Lights, and Corner Lights

What Type of Headlights Do I Have?
What Is a Tail Light? Tail Lights 101
What Are Fog Lights?
Parking, Corner, Side Marker, Turn Signal, Bumper, Repeater Lights & Reflectors Guide


Mirrors

What Are the Different Types of Side View Mirrors?
Towing Mirrors Guide


Engine

Timing Belts Vs. Timing Chains
Exhaust Manifolds Vs. Headers
Ignition Coils & Coil Packs
Exhaust Manifolds 101
What Does an Alternator Do?
How Does a Car Radiator Work? What Does It Do?
What Starters Are, the Different Types, and How They Work
What Is Fuel Injection? How Does It Work?
How Distributor Ignition Systems Work


Drivetrain

Types of Differentials in Automobiles
Difference Between AWD and 4WD


Sensors

What is a MAP Sensor & What does a MAP Sensor do?
MAP vs. MAF vs. IAT Sensors
Crankshaft Position Sensors


Exhaust

What Is an O2 Sensor?


Weatherstripping

What Is Automotive Weatherstripping and What Are the Different Types?


Troubleshooting and How-to Help

Find answers to your part-specific questions


Wheel Hubs

What Is a Wheel Hub?
Bad Wheel Bearing Symptoms
What Does a Bad Wheel Bearing Sound Like?
What Is a Wheel Bearing?
How to Tell Which Wheel Bearing Is Bad While Driving
Is It Safe to Drive with a Bad Wheel Bearing?
What Happens When a Wheel Bearing Goes Out?


Brakes

Different Types of Disc Brakes
How Long Do Brakes Usually Last?
Are Brake Pads Universal?
How Much Does It Cost to Replace Brake Pads?
When Should Brake Pads Be Replaced?
Why Are My Brakes Squeaking?
Do I Need to Turn Rotors When Changing Brake Pads?


Steering and Suspension

Why Does My Steering Wheel Shake When I Drive?
Bad Shocks & Struts Symptoms
What Are Front Struts?
When Should Shocks & Struts Be Replaced?
How Do I Know if I Have Shocks or Struts?
How Many Miles Do Struts Last?
What is the Difference Between Shocks and Struts?
What Are the Different Types of Shocks?
Can You Drive a Car with Leaking Struts?


Lighting

Headlights

How to Adjust & Aim Headlights
What Are Low Beam Headlights?
Why Are My Headlights Dim?
How Long Do Headlights Last?
Is It Illegal to Drive with a Headlight Out?


Tail Lights

Are Tail Lights and Brake Lights the Same Bulb?
Why Are My Brake Lights Staying On?
Why Won't My Tail Lights Turn Off?


Side Mirror

How Much Does It Cost to Replace a Side Mirror?


Window Regulator

What Does a Window Regulator Do?
Why Are My Power Windows Working Intermittently?


Engine

What are the Different Types of Fuel Injection Systems?
What is The Difference Between Flat Plane and Cross Plane Crankshafts?
What to Do When Your Car Overheats
What is a Cylinder Head and How Does it Work?
Signs of a Failing or Bad Ignition Coil
How to Test If an Ignition Coil Is Bad
Signs of a Bad Starter

Fluids

What Fluid is Leaking From My Car?
How Often Should You Change Your Oil?


Exhaust

Can a Bad O2 Sensor Cause a Misfire?


Makes, Models, and Part Brands

Makes

History of General Motors (GM)
11 Common Jeep Problems & Complaints - Death Wobble

Models

Honda Accord Brake Problems - Cause & Solution
The Top 5 Repair Problems on the 12th Generation Ford F-150 2009-2014
The Top 5 Repair Problems on the 7th Generation Toyota Camry 2011-2019
The Top 5 Repair Problems on the 2nd Generation Chevy Silverado 2007-2014



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Instructional Video Library

Thousands of how-to auto repair videos specific to year, make and model guide you step-by-step through your repair.

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