Question about 2001 Chevrolet Suburban

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I have a 2001 chevy suburban 5.3. when i bought it i just oils change,new battery,spark plugs and wires still runs rough as p0300 what is reason?

I have a 2001 chevy suburban 5.3. when i bought it i just oils change,new battery,spark plugs and wires still runs rough as p0300 what is reason? i bought a suburban a wreck and it been sit for 3 years. and it runs fine and no ticking or smoke at all only one thing it runs rough as when drive weak power. also im not sure if it from old gas cause when i bought it it almost full and i smell the gas seem almost normal gas it not like very old gas. need help

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This is a random misfire of all the engine cylinders, the causes are many and each must be diagnosed to fix the problem. If you click this LINK you will go to the best info I know of for diagnosing the problem.

Posted on Feb 16, 2012

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Posted on Jan 02, 2017

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