2006 Chevy Optra car misses

2006 CHEVROLET OPTRA
10 MILES • 4 CYL • 2WD • AUTOMATIC
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TAHERBAZAR
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My car is misses may be petrol or electical problem i dont know when i drive the car and when break after that car suddenly dont pick up it seems like misses petrol or any engine problem i alredy check on computer but no fault seens and also when i drive on 80 whole car vibrates.
Dec 23, 2009 at 2:15 AM
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RASMATAZ
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Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel
Dec 23, 2009 at 2:25 AM