won't pass from 20-30mph

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won't pass from 20-30mph

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Chevrolet Forums >> Chevy Cars >> Malibu >> won't pass from 20-30mph

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won't pass from 20-30mph - 8/6/2006 2:13:35 PM

motomonte

Posts: 2
Joined: 8/6/2006
Status: offline

Hello ,I'm new to this forum and hope to get some usefull info as well as giving any help I can.I have an 99 malibu (v6-3.1l)and it ran great till a few weeks ago when it started to bog after hitting the 20-30 mph the it would downshift and accelerate hard up to 40-50 mph then bog again.Lately it just won't get past 20.I've changed the plugs,wires,fuel filter and one of the coils wich the obd signaled as a missfire in cylinder 6.Still have the same problem.Any ideas as where to check next?The obd light hasn't come on again.Thanks for any help.