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2005 GMC Sierra 2500 HD 6.0L Poor Fuel Economy
This truck came in with check engine light on. P0171, and P0174, lean bank 1 and 2. LT Fuel trims at +25 only at idle. Off idle they drop to about +14. Short term is consistant around 0 +/- 5. The guy took it to dealership where they told him intake gaskets. T...
FIX posted 9/2/2009
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Message Closed w/FIX
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9 Replies Received
9 Replies Received
Related Documents & Media | VIN | 1GTHK29UX5 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2005 GMC Sierra 2500 HD
| VIN | 1GTHK29UX5 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video