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Old 04-02-2024, 08:47 AM   #9
1998c1500
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Join Date: Apr 2003
Location: Austin, Texas
Posts: 200
Re: 1998 c1500 4.3 misfire troubles

I had a similar problem with my 98 4.3L. It would idle rough and when cruising at highway speeds, it felt like it was surging. Replacing fuel filter seemed to help a little, but it turned out that the spider injectors needed to be replaced.
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