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87 GMC R1500 TBI 350 CEL comes on after pulling couple mile grade.
Hey new to the forum here, need some thoughts on an issue I'm having. 87 GMC R1500 TBI 350. After I pull about a 2 mile 10% grade just as I crest the top my check engine light comes on in the same place every time. I have no change in how it runs, no missing, no loss of power, no overheating...- Brock Griesbaum
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- Forum: Tech Discussion
