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01 chevy lumina, put new plugs at .60. Runs rough now.

01 chevy lumina, put new plugs at .60. Previous plugs where at 70. With new plugs in car runs rough with little power. Car originally from Ca.New plugs came gapped at 70. should I have left them at that.

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  • bknelson64 Jul 19, 2010

    Thanks for help, but it did not work. Seems like 1 cylinder is missfiring. Almost wish I did not change the plugs, was running fine. Inherited the car and everyone told me to change the plugs. Reseated all plug wires to make sure I felt a snap. Still No Go.

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SOURCE: Chevy Aveo - Lousy Fuel Milage, From 33+hwy to 19mpg

try giving your car a simple service, change oil, oil filter, air filter, plugs and leads etc. also get your wheels aligned and balanced as having bad geo can also be bad for fuel consumption. if that doesnt work then id recomend a garage.

Posted on Dec 18, 2008

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SOURCE: Rough idle code P0300

check the fuel pressure when u get a po300 code that means there has been a missfire. if your fuel pressure is low it will cause missfires.

Posted on Mar 08, 2009

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SOURCE: 2000 chevy lumina. Is fan supposed to come on when car started

no fan comes on when engine cold start up .but it will come on when you turn on air conditioning or defrost on .if engine idling a while when temp get 190 degree the fan will kick on.if over heating you got air in system .wait until cools check coolant add more .crank engine let it idle few. minutes when start warming up turn off engine wait a while before removing radiator cap so you wont get scald.add more coolant .crank it again starting warming up turn off engine wait a while .add coolant .keep doing this procedure until your coolant stop dropping off .if you do this more than 6 times you got a leak some where.check crank level for signs.if oil level higher than normal.if everything looking good.when engine cool make sure add coolant to over flow jug cold level mark.

Posted on Apr 28, 2009

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SOURCE: 1995 chevy g 20 va 5.7 engine runs rough even

You may have picked up some debris and/or water when it ran out of gas. That got sucked up into the filter. Try changing the fuel filter I believe it's located on the right side, just ahead of the rear wheel.
Try that and see if there's any improvment. Hope this helps.
Good luck.

Posted on Jan 20, 2010

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SOURCE: 1990 chevy lumina, idling problem... to rich.... stalling......

check egr valve for vacuum leak. pull hose from manifold. put hose in your mouth like a straw and **** on it. if the valve moves, then it's good. if it doesn't, you need a new egr valve. WARNING, they are fricking expensive! auto zone price $204. NO JOKE

Posted on May 14, 2010

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