Engine Troubleshooting and Diagnosis

Engine troubleshooting is critical for identifying problems before replacing parts unnecessarily. Symptoms like misfires, rough idle, stalling, and no-start conditions often have multiple possible causes.

This category provides step-by-step diagnostic methods used to identify engine problems accurately. Instead of guessing, you’ll learn how to test, verify, and fix issues efficiently.

Common problems covered:

Engine misfire causes
Rough idle and stalling
Car cranks but won’t start
Loss of power and poor performance

These guides are built to help you diagnose engine issues correctly and avoid costly mistakes.

FAQs

What causes an engine misfire?
Why does my car crank but not start?
How do I diagnose a rough idle?

Valve Lash Setting – Top End Ticking Noise, Usually The First Sign

Valve Lash Setting For Quiet Engine Performance

01/08/2026

Valve lash setting, is something most drivers don’t even think about. First, you need to know if you even have an adjustable valve train for valve lash setting. In most cases, you will not have —READ-MORE

Engine Will Not Start, But Fuel, Spark And Compression Are Good

01/01/2026

All engines require three things to start and run, spark, fuel and compression. So, if any one of these is missing, your engine will not start. With a engine will not start issue, the possible —READ-MORE

Engine Compression – What Can Cause, Low Or No Compression

12/28/2025

So, engine compression is the pressure created, inside each of the engine’s cylinders. And, low or no compression leads to, incomplete combustion and misfires. Symptoms of low engine compression can be, an illuminated (CEL) and —READ-MORE

Engine Stalling – Proper Troubleshooting And Maintenance

08/25/2025

Engine stalling problems, can be hard to find and are often, sensor or temperature related. And, are more likely to occur, during cold weather or when starting a cold engine. So, this kind of engine —READ-MORE

Engine Stalling Issues – Now You Question Your Vehicle’s Reliability

07/29/2025

So, engine stalling issues can be frustrating, and always seem to happen at the worst possible time. Most often, diagnosing the cause can seem like a complicated job. But, the truth is, that all modern —READ-MORE

Flexplate – What Does It Do ? – What Can Happen If It Fails ?

07/20/2025

In vehicles with automatic transmissions, a metal disc called a flexplate, connects the crankshaft to the torque converter. So, a flexplate, as the name implies, serves as a flex-shock device, between the torque converter and —READ-MORE

Intermittent Temperature Related Engine Problems, Where To Start

07/11/2025

Diagnosing intermittent temperature related engine problems, can be a challenge. Especially, if they affect driveability. Problems that come and go or only occur under certain driving or operating conditions, can be very difficult to troubleshoot. —READ-MORE