Car Pictures And Videos - Car Maintenance And Repair Videos

Learn some basic auto repair and maintenance procedures.

Learn the proper way to check the power steering fluid in your car or truck. Low fluid level will cause whining or grinding noises.
How To Check Power Steering Fluid
Learn the proper way to check the oil level in your car or truck.
How To Check Engine Oil
Watch how to check the brake fluid on your car or truck.
How To Check Brake Fluid Video
Learn how to check the coolant and antifreeze on your car or truck. Make sure it is full and in good condition.
How To Check Coolant And Antifreeze...
Learn how to check the serpentine drive bet on your car or truck. This is a very important maintenance procedure.
Checking Car Serpentine Drive Belt ...
Learn the proper way to check your car or truck fuses when you have an electrical problem.
How To Check Car Fuses Video
Learn how to clean the carbon from the throttle on your car or truck if it stalls coming to a stop or is hard to start.
How To Clean Throttle Body Video
 
 

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How Things Work

Exhaust Recirculation System - Known As EGR Valve

The Exhaust Gas Recirculation (EGR) system is used to lower Oxides of Nitrogen (NOx) emission levels caused by high combustion temperature. It does this by decreasing combustion temperature.

The main element of the system is the linear EGR valve. The EGR valve feeds small amounts of exhaust gas back into the combustion chamber. With the fuel / air mixture diluted by the exhaust gases, combustion temperatures are reduced.

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Common Engine Codes

Intake Air Temperature Sensor (IAT) Code P0112 Or P0113

The intake air temperature (IAT) sensor is a thermistor which measures the temperature of the air entering the engine. The powertrain control module (PCM) applies 5 volts through a pull up resistor. When the intake air is cold, the sensor resistance is high and the PCM will monitor a high signal voltage on the IAT sensor signal circuit.

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