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GMC 4.3 Mystery Misfire P0304
First the history. Lower intake let go, coolant oil, for who knows how long before cust notices it. Takes it to a buddy who does the intake, changes the oil. Now the Mil is on, CKP sensor. They change it, still has code. Now we have it, get a NAPA sensor, this... Login to read more. ![]()
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| Engine | 4.3 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2001 GMC Sonoma SL 4.3L
| Engine | 4.3 L |
| Trans | 4-speed Automatic (Electronic) |

7 Replies Received
7 Replies Received