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No Communication from DLC
Car in question has a slight miss @ Idle and poor fuel Economy. The transmission also seems to shift very early into 2nd or 3rd Gear. I have tried to pull any DTC's and Data from the Vehicle but the Scan tool says there is a communication error. I have checked... Login to read more. 
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19 Replies Received
19 Replies Received
| Engine | 3.9 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Misfire, Poor Fuel Economy |
Vehicle Data
2006 Chevrolet Impala LT 3.9L Misfire, Poor Fuel Economy
| Engine | 3.9 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Misfire, Poor Fuel Economy |
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