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L1: General Powertrain Diagnosis

3 Signs of a Bad Intake Manifold Runner Control Valve Failing Symptoms Stuck Closed Open Circuit Low (2:56) (2021) (Better)

4 Signs of a Bad Coolant Temperature Sensors Failed Symptoms Overheating (2:21) (2020) (Better)

4 Signs of a Bad Intake Manifold Gasket Leak Failing Symptoms Noise (2:15) (2020) (Better)

4 Signs of a Catalytic Converter Going Bad Failure Symptoms P0420 Clogged (3:02) (2020) (Better)

5 Symptoms of a Bad Coolant Temperature Sensor Failing This Can Cause Engine Overheating! (2:20) (2021) (Better)

Car Engine Cutting Out? Only Drives Slow? How to Check Air Intake System! (6:45) (2021) (Best)

Car Mod for More torque - Gear Ratios Explained (8:16) (2017) (Better)

Check Engine Light? Codes P0446, P0455: What Causes a Car Evap Code? (5:27) (2020) (Best)

Diagnosing a Failed Emissions Test - High HC, CO and NOx Causes and Repairs (10:43) (2015) (Better)

Everything You Need to Know About Variable Valve Timing and Variable Valve Lift (4:04) (2019) (Best)

Find Your Effective Gear Ratio with This Equation (2:23) (2017) (Better)

How Tire Size Affects Speed (4:56) (2018) (Good)

How to Replace VVT Solenoid 11-16 Ram 1500 (1:44:18) (2019) (Best)

P0011 - P0014 Variable Valve (Cam) Timing Codes and How to Diagnose Them (1:52:20) (2019) (Best)

Smells, or Ticking? Diagnose a Car or Truck Exhaust Manifold Leak (9:06) (2020) (Best)

Symptoms of Bad Engine Coolant Temperature Sensor (2:40) (2021) (Better)

Variable Valve Lift Vs Variable Valve Timing (9:46) (2017) (Better)

Variable Valve Timing Explained (14:22) (2017) (Better)

Why Cold Air Intakes Don't or Do Work On Your Car (30:20) (2021) (Better)

Why Is Final Drive Ratio Important? Accelerate Faster! (6:59) (2017) (Better)