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Missfire Diagnosis
Hi everyone, I am looking for some advice on a missfire I have. I believe I have a carbon issue. No codes are being set and I have narrowed it down to cylinder 1. When I get the vehicle hot I can disconnect the coil pack and the van will start and idle. It idl... Login to read more. ![]()
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| Engine | 3.9 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2008 Chevrolet Uplander LS 3.9L
| Engine | 3.9 L |
| Trans | 4-speed Automatic (Electronic) |

5 Replies Received
5 Replies Received