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  1. J

    Misfire on cylinder 4 at idle only

    Drakon, thanks for your response! I know the dealer said he also did a compression check too, so I'm really hoping that's not the issue. I'll question the intake manifold gasket with my guy, is there a way to test that for failure other than what it's currently doing?
  2. J

    Misfire on cylinder 4 at idle only

    Hey everybody, new to the forum and looking for some help... I recently purchased a 99 Tahoe with a 350 vortec, great shape body wise for the year, 124k miles. I purchased it knowing there was a misfire on cylinder 4. It only occurs at idle - as soon as you touch the throttle, it's smooth as...

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