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excessive black smoke
Vehicle starts and idles well,fuel pressure 5000 [...] rpm's are 1500 or more exhaust spews excessive black [...] EGR problem. Login to read more. 
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14 Replies Received
14 Replies Received
| Engine | 6.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Surge |
Vehicle Data
2004 GMC Sierra 2500 HD 6.6L Surge
| Engine | 6.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Surge |
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