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Sec. ign. pattern, Cause of misfire?
This looks like a valve sealing issue to me, but I'm not
sure. This is Cyl 4 which is the only cyl with misfires
being counted.
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| Engine | 4.3 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2002 GMC Savana 1500 4.3L
| Engine | 4.3 L |
| Trans | 4-speed Automatic (Electronic) |
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