Question about 2004 Mitsubishi Galant
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Posted on Jan 02, 2017
SOURCE: idle air control
all the sudden the check engine light came on and it started to idle funny and dying at stops. I had a diagnostic done on it and changed out the idle air control valve but it doent seem any different. and the check engine light is still throwing the same code. we adjusted the idle up so i could drive it with out it dying but it is still acting funny.
Posted on Nov 10, 2008
SOURCE: Have a 1996 Mitsubishi Galant
You'll have to remove the throttle body to replace the idle air control (IAC) valve. First, disconnect the negative ground cable from the battery. Then remove the vacuum line and air duct intake. Then disconnect the IAC and throttle position sensor (TPS) electrical connections. Remove the coolant hoses that are connected to the IAC. Disconnect the throttle cable from the throttle body. Now, remove the 4 bolts that hold the throttle body to the manifold and remove. Be careful with the gasket located between the throttle body and manifold and replace it in the same position. On your clean work surface, turn the throttle body over and remove the 4 phillips head screws holding the IAC to the throttle body. Clean the parts with a dry cloth but do not use solvents on the IAC or TPS. That's it!
Posted on Dec 17, 2010
SOURCE: My 2004 mitsubishi galants egr
Hi, the "dirt" that clogs your EGR valve and intake manifold is not dirt in the traditional sense. The dirt in this case is carbon buildup from your engine and emissions. When the carbon builds up to a certain point, it hardens and forms a residue. This residue will ultimately clog your intake manifold and EGR valve, stopping them from functioning properly and causing the rough idling and stalling.
Carbon buildup is caused by not burning all the gas going through the cylinders. This can be caused by many different things including using bad gas, driving around in the city too much, and not having enough spark in the engine, but the main cause of carbon buildup is driving too carefully. Driving slowly and safely and carefully every single day puts a lot of pressure on the engine. Driving like a maniac isn't good for your vehicle all the time either, but occasionally it is good to break out of your normal rhythm.
Unless there seems to be a major problem try to keep the car at a steady acceleration until its ride is nice and smooth. You may need to stop the car and then start over by punching the gas pedal again. This way you don't accelerate past the speed limit allowed on the road. It is the rapid acceleration part that burns off the carbon, not the speed, so don't risk a speeding ticket. When the vehicle seems to respond to the gas pedal easily and undergoes no more choking, you've gotten rid of the excess buildup. Try to gun it occasionally each month to prevent more carbon from building up. A few minutes of consistent acceleration will keep your engine nice and clean.
If you have a lot of exhaust coming out in a steady stream and it is blue or black, stop accelerating immediately. There could be something wrong with your engine and you don't want to aggravate the problem by trying to burn off the carbon. Different colored smoke means different things. Blue, usually there's oil in your gas mixture. Black usually means you have bad valves in your engine. Take your vehicle to an auto shop and tell them about the color of the smoke and the amount. You probably have bad rings or need a valve job.
Posted on Dec 27, 2010
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