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Running rough when cold
Van came in with rough running and codes P1174 and P0300. Cylinders 2 and 6 were misfiring. Replaced spark plugs, cylinder 2 and 6 fuel injectors and bank 1 sensor 1 O2 sensor. Codes did not come back but now has code P0172 Fuel trim system rich. Van runs roug... 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) |
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