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2001 GMC Sierra 1500 SL 4.8L MIL Lamp on
vehicle came in with mil light on. found po171 and po174 codes. changed fuel filter and pressure tested system. fuel filter plugged. checked for vacume leaks, non found. local dealer informed us on intake gasket leak. replaced gasket and still have same 2 [......
FIX posted 4/20/2006
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Message Closed w/FIX
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15 Replies Received
15 Replies Received
Related Documents & Media | VIN | 1GTEC14V81 |
| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SCFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2001 GMC Sierra 1500 SL
| VIN | 1GTEC14V81 |
| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SCFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video