Recent content by 98yuk
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9
P0303 Misfire only under load
My 1998 Yukon just started doing almost the exact same thing. P0303 only under load up hills. No other codes showing. Any luck with the diagnosis? I'm going to start trying to track this down myself, I'll post updates as I go.- 98yuk
- Post #9
- Forum: Engine Performance + Maintenance
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