So, the fuel pump relay, is activated, whenever the ignition is turned on. Consequently, the primary function of the fuel pump relay, is to maintain a steady voltage supply, to the fuel pump. Therefore, when switched on, […]
The, (O2) Oxygen Sensor, measures the difference, between the amount of oxygen in the exhaust gas. And, the amount of oxygen 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 […]
Your engine cooling fan, only runs when needed, to help cool the engine. So, a engine cooling fan, relay or control circuit failure is bad news. Because, it can allow the engine to overheat. But, […]
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, […]
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, […]
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 […]
So, the throttle position sensors function (TPS), is to supply vital information to the vehicles, engine control unit (ECU). Most importantly, this information is based on, the actual position of the engines throttle valve. So, […]
Valves and piston rings, are crucial for your engine to function properly. Aside from your head gasket, these are the parts that are responsible for, sealing the combustion chamber. Most of the time, valves and […]
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, […]
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 […]
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