2006 Holden Commodore idle

2006 HOLDEN COMMODORE
100,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
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LEGENDSEXY
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I had new spark plugs and ignition coils put in my ve when i got it back the rpms meter was going up and down on idle the exhaust was making a popping sound and the engine was shaking side to side the idle is really rough every time i stop the car shakes all my passengers can feel it as well i be taking it back on monday just wondering wahat that would be. thank you
Oct 2, 2015 at 12:36 AM
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MHPAUTOS
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They may have wired up one of the coils incorrect causing a misfire, also the plenum chamber is removed to replace the coils and plugs so you may also have a vacuum leak if they have not fitted the chamber gasket or vacuum hoses back correctly.
Oct 2, 2015 at 2:25 AM