Illumination of the Check Engine Light may be the result of a loose or worn gas cap.
Problems for specific Chevrolet S10 years:
Car problem reports
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Most reported 2003 Chevrolet S10 problems
The CD player in the radio may fail. Our technicians tell us that the radio will need to be removed and sent out to a radio repair shop to correct this condition.
The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.
The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.
A fluid leak may develop from the transmission output shaft seal. This leak may cause the transmission mount to become oil soaked and require replacement of the mount along with the leak repair.
Found code P0300. The solution was the coil for cylinder 2&3 bad. Replaced coil, engine running good.