Mech Lesson

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MechLesson: The ultimate resource for DIY auto repair, car maintenance, and mechanical engineering basics. We simplify complex systems so you can fix your car or ace your engineering exams. Subscribe for new lessons every week!

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WARNING! Replace These Car Parts NOW or Pay THOUSANDS Later

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WARNING! Replace These Car Parts NOW or Pay THOUSANDS Later Mech Lesson and Student Lesson

31 views - 1 day ago

What is a Starter Motor? Its Functions, Parts, and How it Works

What is a Starter Motor? Its Functions, Parts, and How it Works Mech Lesson

31 views - 4 days ago

What is Ignition Coil? Its Functions, Parts, and How it Works

What is Ignition Coil? Its Functions, Parts, and How it Works Mech Lesson

88 views - 6 days ago

What is an Alternator? its Functions, Parts, and How Your Car Charges the Battery!

What is an Alternator? its Functions, Parts, and How Your Car Charges the Battery! Mech Lesson

116 views - 1 week ago

What Is a Distributor? Its Functions, & How It Works in the Ignition System!

What Is a Distributor? Its Functions, & How It Works in the Ignition System! Mech Lesson

54 views - 1 week ago

What Is a Universal Joint? How It Works in Your Drivetrain!

What Is a Universal Joint? How It Works in Your Drivetrain! Mech Lesson

123 views - 1 week ago

What Is a Leaf Spring? How It Works in Trucks and Cars!

What Is a Leaf Spring? How It Works in Trucks and Cars! Mech Lesson

231 views - 2 weeks ago

What Is a Differential? How It Works in Your Car!

What Is a Differential? How It Works in Your Car! Mech Lesson

160 views - 3 weeks ago

What Does a Coil Spring Do? How It Works and Why It Breaks!

What Does a Coil Spring Do? How It Works and Why It Breaks! Mech Lesson

215 views - 1 month ago

What Is an Axle Shaft? How It Works and Why It Fails!

What Is an Axle Shaft? How It Works and Why It Fails! Mech Lesson

115 views - 1 month ago

What Does a Shock Absorber Do? How It Works and Why It Fails!

What Does a Shock Absorber Do? How It Works and Why It Fails! Mech Lesson

125 views - 1 month ago

What Is a CV Joint? How It Works and Why It Fails!

What Is a CV Joint? How It Works and Why It Fails! Mech Lesson

195 views - 1 month ago

Does a Bigger Engine Really Mean More Power? The Truth Revealed!

Does a Bigger Engine Really Mean More Power? The Truth Revealed! Mech Lesson

83 views - 2 months ago

Nitrogen vs Air in Tires — What’s the REAL Difference?

Nitrogen vs Air in Tires — What’s the REAL Difference? Mech Lesson

152 views - 2 months ago

How Hybrid Engine Technology Works — Explained Simply!

How Hybrid Engine Technology Works — Explained Simply! Mech Lesson

112 views - 2 months ago

Does This Upgrade Really Boost Engine Performance? The Truth Revealed!

Does This Upgrade Really Boost Engine Performance? The Truth Revealed! Mech Lesson

74 views - 2 months ago

Do Oil Additives Really Work? Can They Extend Your Engine’s Life?

Do Oil Additives Really Work? Can They Extend Your Engine’s Life? Mech Lesson

189 views - 2 months ago

Variable Valve Timing Explained — More Power, Better Efficiency!

Variable Valve Timing Explained — More Power, Better Efficiency! Mech Lesson

151 views - 3 months ago

Do You Need to Break-In a New Car Engine? Mechanic Explains!

Do You Need to Break-In a New Car Engine? Mechanic Explains! Mech Lesson

139 views - 3 months ago

Driving Without a Catalytic Converter — Legal or Dangerous?

Driving Without a Catalytic Converter — Legal or Dangerous? Mech Lesson

239 views - 3 months ago

Do You Really Need Premium Gas? The Truth About High-Octane Fuel!

Do You Really Need Premium Gas? The Truth About High-Octane Fuel! Mech Lesson

53 views - 3 months ago

Does Engine Flushing Really Help or Hurt Your Car? The Truth Revealed!

Does Engine Flushing Really Help or Hurt Your Car? The Truth Revealed! Mech Lesson

315 views - 3 months ago

Muffler Delete Explained: More Power or Just More Noise?

Muffler Delete Explained: More Power or Just More Noise? Mech Lesson

81 views - 3 months ago

Warming Up Your Car Before Driving - Myth or Fact

Warming Up Your Car Before Driving - Myth or Fact Mech Lesson

271 views - 3 months ago

The Worst Engine EVER Made Isn't What You Think

The Worst Engine EVER Made Isn't What You Think Mech Lesson

66 views - 3 months ago

Top 10 Most Fuel-Efficient Engines in 2025 — Save More, Drive Farther!

Top 10 Most Fuel-Efficient Engines in 2025 — Save More, Drive Farther! Mech Lesson

428 views - 3 months ago

Top 5 Most Reliable Engines for Long-Term Use — Built to Last!

Top 5 Most Reliable Engines for Long-Term Use — Built to Last! Mech Lesson

231 views - 3 months ago

MacPherson, Double Wishbone, or Air Suspension — Which Wins?

MacPherson, Double Wishbone, or Air Suspension — Which Wins? Mech Lesson

500 views - 3 months ago

Turbocharger vs Supercharger — Which One Is Better? Full Comparison!

Turbocharger vs Supercharger — Which One Is Better? Full Comparison! Mech Lesson

85 views - 4 months ago

Top 10 Engine Designs of All Time

Top 10 Engine Designs of All Time Mech Lesson

274 views - 4 months ago

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