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2005 GMC Sierra 3500 SLT 6.6L Excessive Emissions
Ok we did the head gaskets and all 8 injecters trucks run great it just smoke under load or when pulling it leave a big clould on take off and leaves a light stream untill you let out of the gas or back off to 1/4 throttle i flow tested all my injecter and did...
FIX posted 7/30/2013
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Message Closed w/FIX
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Related Documents & Media | VIN | 1GTJK33265 |
| Engine | 6.6 L / 8 cyl / DIESEL |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Under Load, on Accel |
Trouble Codes
| P1621 | Control Module Long Term Memory Performance |
Message Closed w/FIX
Vehicle Data
2005 GMC Sierra 3500 SLT
| VIN | 1GTJK33265 |
| Engine | 6.6 L / 8 cyl / DIESEL |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Under Load, on Accel |
Trouble Codes
| P1621 | Control Module Long Term Memory Performance |
Video