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HomeEngine Diagnostics & TroubleshootingEngine Testing

Engine Testing

Stop guessing and start measuring with our expert Automotive Engine Testing guides. To truly understand an engine’s internal condition, you must move beyond simple code reading and perform mechanical health checks. Our resources cover how to execute a dry and wet compression test, use a leak-down tester to pinpoint air escaping through valves or rings, and interpret vacuum gauge readings for timing or intake issues. Learn to use professional diagnostic tools to confirm head gasket failures, worn camshaft lobes, and restricted exhaust systems before committing to expensive teardowns.

Fuel Pump Relay - Function - Failure - Testing Procedures
Electrical Systems

Fuel Pump Relay – Function – Failure – Testing Procedures

06/09/2025
The fuel pump relay, is activated whenever the ignition is turned on. So, the primary function of the fuel pump relay, is to maintain a steady voltage supply to the fuel pump. Therefore, when switched […]
Automotive Engine Valves: Function, Failure, and Testing
Engine Testing

Automotive Engine Valves: Function, Failure, and Testing

02/20/2025
The main function, of automotive engine valves, is to let air in and out of the cylinders. Above all, the valves in your cylinder head, are a vital part of your engine and undergo, enormous […]
Compression Test: How To Do It, Dry Or Wet - Review The Results
Engine Testing

Compression Test: How To Do It, Dry Or Wet – Review The Results

01/29/2025
Doing a compression test, is a good way to measure the condition of the rings, cylinders, and valves. So, if your engine is running rough or is lacking power, consider doing a compression test. Also, […]
Engine Fuel System: Signs of Trouble and What to Check
Engine Testing

Engine Fuel System: Signs of Trouble and What to Check

11/10/2024
So, the engine fuel systems job, sounds pretty basic. It delivers fuel from the fuel tank, to the engine. Testing the engine fuel system, is relatively simple. Engine fuel system consists of the filler hose, […]
Noid Light - Tests For An Electrical Signal, At The Fuel Injector
Engine Testing

Noid Light: Tests For An Electrical Signal, At The Fuel Injector

11/01/2024
Learning how to test fuel injectors, using a noid light, is easier than you think. Noid lights, provide a quick and easy method for detecting, if there’s an electrical signal, at the fuel injector. So, […]
Alternator Or Battery Failure
Electrical Systems

Alternator or Battery Failure: How to Diagnose and Save Money

10/30/2024
Having a alternator or battery failure is bad new, because they are both components of the charging system. That makes diagnosing a alternator or battery failure, a bit tricky. Because, the electrical power in your […]
Doing a Engine Power Balance Test
Engine Testing

Engine Power Balance Testing: Total Power Output Of The Engine

09/17/2024
The engine power balance test, can be a great way to pinpoint, a cylinder that is underperforming. Above all, a cylinder that is not working as well as, the other cylinders in the engine. The […]
Crankshaft Position Sensor Being Unplugged
Engine Testing

Crankshaft Position Sensor – (CKP) – Testing And Replacement

08/07/2024
Crankshaft position sensors (CKP) read ignition timing, the (RPM) signal, and determine engine speed. But, when the crankshaft position sensor (CKP) fails, it stops transmitting the readings. Consequently, the crankshaft position sensors (CKP) readings, contain […]
Crankshaft Position Sensor Mounted on Front of Engine
Engine Testing

Crankshaft Position Sensor: Tracks Position and RPM of the Crank

06/22/2024
There are a number of symptoms, that can point to your Crankshaft Position Sensor (CKP) failing. But, can also be confused with the same symptoms, caused by issues with, your Ignition or Fuel Injection System. […]

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