Question about Dodge Ram 250
it's carbon buildup in the throttle body (butterfly valve). There needs to be a certain gap to let the air pass at idle, and if the butterfly valve has too much carbon on it, it will choke and stall when you push the gas pedal.
Get a brass brush, some carb cleaner, turn the valve so it's horizontal, and clean it off really good. It will take a second to start and will sputter at first, but don't freak out. That's normal. ------ The gas pedalin your car is connected to the throttle valve -- this is the valve ... when the gas pedal is firstpressed, there may be a hesitation as some air .The engine control unit (ECU, the computer that controls all of the electronic components on your engine) "sees" the throttle valve open and increases the fuel rate in anticipation of more air entering the engine. It is important to increase the fuel rate as soon as the throttle valve opens; otherwise, when the gas pedal is first pressed, there may be a hesitation as some air reaches the cylinders without enough fuel in it.Sensors monitor the mass of air entering the engine, as well as the amount of oxygen in the exhaust. The ECU uses this information to fine-tune the fuel delivery so that the air-to-fuel ratio is just right.
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Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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