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The, (O2) Oxygen Sensor, measures the difference, between the amount of (O2) in the exhaust gas. And, the amount of (O2) in air. So, with that information and other sources, the (ECU) can decide, whether […]
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 […]
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, […]
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, […]
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, […]
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 […]
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 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 […]
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. […]
THE COOLING FAN RELAY ESSENTIALLY FUNCTIONS AS, THE ON/ OFF SWITCH FOR THE ENGINE’S COOLING FANS. And, is therefore an important electrical component, of the engine’s cooling system. As a result, most cooling fans use […]
AFTER YOU HAVE DONE A BASIC COMPRESSION TEST, THE NEXT STEP IS, WET COMPRESSION TESTING. Above all, an engine needs a good seal between the rings, and the cylinder walls. Also, between the valves, and […]
SO, THE IDLE AIR CONTROL VALVE, IS RESPONSIBLE FOR MANAGING THE ENGINES IDLE SPEED. And, that’s what makes the idle air control valve, a major management component of the engine. Because, it decreases or increases […]
EVERY VEHICLE BUILT SINCE THE EARLY 1980’s, HAS ONE OR MORE (O2) OXYGEN SENSORS INTEGRATED INTO THE EXHAUST SYSTEM. So, (O2) oxygen sensors, confirm, that the proper air/fuel ratio, is actually reaching the engine. Consequently, […]
So, having a compression leak between cylinders, can allow the compression, to leak from one cylinder to the next. This causes a loss of compression, and sometimes, allows exhaust gasses, back into the intake, depending […]
Firstly, a running dynamic compression test, confirms how effective each cylinder is, at pulling air in. Secondly, holding it for the correct amount of time, then letting it go, into the exhaust. So, if a […]
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