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3.4 to 3.1 swap mil p0171
This vehicle was purchased with a 3.1 in place of the factory 3.4 engine. The MIL is on for P0171. I cannot find any obvious reasons for this code to set, (smoke tested, carb cleaner, and propane while watching trims) and I was wondering if the smaller engine ... Login to read more. ![]()
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| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2003 Buick Rendezvous CX 3.4L
| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |

29 Replies Received
29 Replies Received