Question about 1992 Buick Roadmaster

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I replace the fuel filter spark plugs maf sensor and wires in my car. It idles up and down when i start it in the morming. Plus when im driving when i come to a stop it feel like my car has a slight miss to the engine. Do i need to replace the idle control balvle or. New air filter. I have a k&n air filter.

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I Would start by checking for a vacuum leak, these engines have problems with leaks around the intake you can try and spray a non cfc brake cleaner or carb cleaner around the intake and see if the idle speed changes if so the intake gaskets are probably leaking.

Posted on May 23, 2011

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An automobile's ignition system may work fine while idling but fail during acceleration. Problem areas to be inspected include the spark plugs, spark plug wires and vacuum hoses. Car owners should look for spark plugs that are covered in oil or sediment or damaged, spark plug wires that have damaged insulation, and vacuum hoses that are unplugged or leaking. Fuel Problems
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While most acceleration problems are likely caused by problems with the plugs, wires or fuel, a variety of sensors and other components can cause similar problems. a bad tps ( throttle position sensor ) will cause causes transmission shift issues, bucking, jerking, idle surging, engine cutoff, hesitation on takeoff, and surging while going down highway.
good-day ! check and or clean maf sensor if need be. you can by the maf sensor cleaner at most auto parts stores.

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