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trouble code P0300
when driving at highway speed for approximatly 2 minutes, MIL will start flashing and store code P0300. history missfire data list will show, 1cyl 1499 missfire count, 5cyl 161, 6cyl 916. these are the missfire counts after clearing code and driving vehicle, u... Login to read more. ![]()
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| Engine | 6.0 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2004 Chevrolet Express 2500 LS 6.0L
| Engine | 6.0 L |
| Trans | 4-speed Automatic (Electronic) |

42 Replies Received
42 Replies Received