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2000 GMC Sierra 2500 SL 6.0L Poor Idle Quality
Long time listener first time caller. Truck came in with cel and poor idle. Found lean codes for both banks. Fuel trims at idle LT at 25 ST at 50. Increase in throttle brings fuel trims back close to normal. Smoked the intake through fuel regulator hose. Only ...
FIX posted 11/7/2017
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | 1GTFC29U6Y |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality |
| Occurs | Always, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2000 GMC Sierra 2500 SL
| VIN | 1GTFC29U6Y |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / mpi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality |
| Occurs | Always, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video