Month

April 2015

THIS IS HOW COMPUTER CONTROL YOUR ENGINE

The performance and emissions that today’s engines deliver would be impossible without the electronics that control everything from ignition and fuel delivery to every aspect of emissions. Electronics make possible V8 engines that deliver excellent performance, good fuel economy
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DON’T NEGLECT THE SPARK PLUGS!

Consider for a moment what happens when a spark plug fires. The spark is created when high voltage supplied by the ignition coil jumps across a small air gap between the plug electrodes. The high voltage surge from the coil goes down the plug center electrode, ionizes the air between
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OXYGEN SENSOR QUESTIONS AND ANSWERS

How many oxygen sensors are on today’s engines? It depends on the model year and type of engine. On most four and straight six cylinder engines, there is usually a single oxygen sensor mounted in the exhaust manifold. On V6, V8 and V10 engines, there are usually two oxygen senso
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KNOW YOUR ENGINE SENSORS

Sensors monitor all the key functions necessary to manage ignition timing, fuel delivery, emission controls, transmission shifting, cruise control, engine torque reduction (if the vehicle has anti-lock brakes with traction control) and charging output of the alternator. On many late m
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HOW TO DIAGNOSE AND REPAIR OXYGEN SENSOR

OXYGEN SENSOR (O2) The Oxygen Sensor is one of the key sensors in the car system. It is often referred to as the “O2” sensor because O2 is the chemical formula for oxygen (oxygen atoms always travel in pairs, never alone). It may also be referred to as the H2O2 for Heated
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IS YOUR A/C BLOWING WARM AIR INSTEAD OF COLD AIR?

Is you car’s air conditioner blowing warm air only and no cool air? Your A/C cooling problem could be caused by any of the following: Your A/C system may have lost its charge of refrigerant. This is probably the most common cause of a no cooling problem. Another possible cause o
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