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Chevrolet
S10
7

Engine started running rough suddenly, Check engine light flashing. on Chevrolet S10

Problem Data
Average mileage: 156,250 (128,000–205,000)
Engines affected: 2.2L 4 Cylinder, 4.3L V6
2 model years affected: 2003, 2004
7 people reported this problem
Comments
Viewing 1 - 3 of 3 comments
Found code P0300. The solution was the coil for cylinder 2&3 bad. Replaced coil, engine running good.
engine started running rough.barely made it home. now what? engine oil dip stick said one quart low,so i added quart yesterday. maybe wasnt low. would over filling oil make it run like that?