Automotive-Sensors
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Why are automotive sensors so important today

February 23, 2017 Danny Bender

Before the use of computerized controls, fixing an automobile was straightforward and logical. Gasoline engines need the proper fuel and air mixture, compression to squeeze the mixture together, and a spark plug to ignite the mixture. In the old days, if you had fuel, spark and you were somewhere close […]

Rocker arm dislodging
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Rocker arm dislodging with valve seat falling out

February 20, 2017 Danny Bender

Have you ever had a customer come in and complain of a poor running engine? After diagnosing it you find engine misfire codes. To narrow down the issue you do a compression test or cylinder leak down test. Rocker arm dislodging with valve seat falling out. Now you have isolated a specific cylinder […]

Valve Lash Setting
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Valve lash setting and adjustment

February 18, 2017 Danny Bender

The term “valve lash” is often used when discussing valve train adjustment. A valve lifter (sometimes referred to as a tappet or cam follower) follows the contour of the camshaft lobe and transfers that motion to open and close the valves. Let’s start with understanding the basics, Hydraulic and Mechanical.(valve lash) Valve […]

Engine Misfires
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Engine misfires finding and fixing them

February 6, 2017 Danny Bender

Engine misfires finding and fixing them. Misfires can cause the driver to feel a jerking action while driving.  Engine misfires can happen constantly or intermittently. The engine stumbles for a moment and then regains its pace. Just as soon as the rpm settle down, though, the engine misfire reappears, and […]

PCV Valve
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PCV Valve (Positive Crankcase Ventilation) -FAQ

January 30, 2017 Danny Bender

The PCV Valve (Positive Crankcase Ventilation) is a controlled device used to vent the crankcase. It sends partially burned gases that come from the engine’s crankcase back to the combustion chamber. Burning these gases for a second time is its main objective. PCV – Stands for (Positive Crankcase Ventilation). One […]

engine knocking
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Engine Knocking Pinging Rattling

January 27, 2017 Danny Bender

If your engine makes an annoying knocking, pinging or rattling sound when you accelerate or work your engine hard with a load – like driving uphill, passing a slowpoke or towing a trailer – then you’re probably experiencing spark knock. (engine knocking) It’s not necessarily a problem with your fuel […]

Engine Spark Knock
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What is engine spark knock-Is it bad

January 21, 2017 Danny Bender

Engine spark knock what is it? Is it bad and what can you do about it? If your engine makes an annoying knocking, pinging or rattling sound when you accelerate or work your engine hard with a load – like driving uphill, passing a slowpoke or towing a trailer – […]

Firing Fuel Injector
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Fuel injector deposits and failure symptoms

January 17, 2017 Danny Bender

Fuel injector deposits and failure symptoms. Gasoline is a mixture of many different hydrocarbons, including oilfins, which are heavy, waxy compounds. When the engine is off, there is no cooling airflow through the ports and no fuel flow through the fuel injector to wash it away, so heat bakes the […]

No Fuel
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Common causes of poor fuel economy

December 27, 2016 Danny Bender

Maintenance is critical in keeping your vehicle running its best and minimizing fuel consumption.  Knowing the common causes of poor fuel economy is just the tip of the iceberg. It may not seem like that big a deal but staying on top of oil changes, replacing the air filters when […]

VVT Technology
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Variable valve timing-cam phasing-VVT- how does it work

December 14, 2016 Danny Bender

Variable valve timing-cam phasing-VVT- how does it work ? Valve overlap. Valve overlap is the amount of time the intake and exhaust valves are both open at the same time. Less overlap produces a smooth idle and more slow speed torque. But poor high speed performance because there is not […]

oxygen-sensor
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Oxygen Sensor-Should you Replace It ?

December 1, 2016 Danny Bender

Replacement of good oxygen sensors is one of the common mistakes made by seasoned mechanics and DIY mechanics when tackling rich or lean diagnostic codes. Oxygen Sensor-Should you Replace It ? Before replacing any of these components, you must first find the real problem that caused the failure. The purpose […]

vacuum readings
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How to do a vacuum test

November 23, 2016 Danny Bender

A vacuum test can tell you more than you think. One of the easiest and cheapest ways to check an engine for serious issues is to use a vacuum gauge. A vacuum gauge can tell you a lot about an engine’s condition, similar to a cylinder leak down test . In […]