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View Full Version : My 2003 chevy impala seems to be sluggish when trying to get up to speed.?


lsimpala03
12-30-2008, 11:23 AM
I have replaced spark plugs, wires, and coils as the coils seemed to have a misfire diagnosed by my mechanic. So my next guess is the catalytic converter. Because I have heard the a misfire can cause a converter to clog and not work anymore? Is this true or should I look elsewhere? Any help is greatly appreciated!!thanks.