Question about 1998 Chevrolet Cavalier

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98 cavalier 2.2L cold misfire/no start

I have a 98 cavalier 2.2L, 89k miles. Over the last couple weeks, the car runs rough upon first starting when cold. It would clear up within a minute. The other day it would not start. It had the original plugs were full of carbon/soot and the electrodes were worn significantly, so I replaced them. It already has new AC Delco wires.  It started right up after the plug change. The next morning, it ran a little rough again but cleared up quickly. Are there any other common problems that anyone knows of?

Thanks in advance
Aaron

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You may be looking at dirty injectors. I would run a good quality (something like Wynns or Redline) fuel system cleaner through, following the directions on the bottle twice. Which usually means adding the bottle to a full tank of fuel, and then adding another bottle after a second fill. Check for improvement, this will cost under $30, vs a trip to a mechanic. A friend of mine had a 2.2l in a sunfire that did something very similar and a good cleaning cleared it up completely. Unfortunately, he spent $300 at a mechanic to find out.

Posted on Jul 14, 2009

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