engine Archives - Tomorrows Technician
Dealing with Deposits to Boost Engine Life

Valvoline’s Restore and Protect fully synthetic motor oil helps both older, high-mileage vehicles (restore) and new vehicles (protect).

How Belts, Tensioners And Misfires Are Connected

Modern crankshaft position sensors measure more than the position of the crankshaft.

Understanding Underhood Parts for Hybrids

Anything that can happen to an ICE in a standard vehicle can happen to an ICE in a hybrid.

Diagnosing Misfires

What if there are no codes and a misfire is intermittent? This is where it gets complicated. 

Diagnosing Driveability Problems

Understanding what comes out through the exhaust valve is critical to solving any emissions or driveability problem.

Electronic Throttle Body Service

On most systems, idle speed is completely controlled by the throttle plate angle.

Chasing The Perfect Combustion Event

The perfect internal combustion engine would put the exact amount of fuel and air into the combustion chamber.

Diagnostic Strategies For Stop/Start Systems

This function of the power management system uses several modules to decide when the engine needs to stop and start.

What Can You Tell About An Engine From A Spark Plug?

Spark plug condition can reveal valuable clues about short and long-term engine issues if you know what to look for.

Knock Sensor Diagnostics

The knock sensor is not the only sensor responsible for detecting engine knock.

ECM Damage

Engineers have devised two strategies that can be called the “immune system” for the electrical system.

It’s Got Spark!

Why can’t you trust some spark tests?