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2001 GMC Yukon XL 1500 SLE 5.3L Lean Surge
Truck surges and runs lean on bank 1 under load(hard acceleration). Fuel trim @ + 20%. Runs fine under normal driving (fuel trims OK). Idles decent @ 20" vac. Runs good until it warms up (closed loop). Smoke machine or propane will not locate vac. leak. checke...
FIX posted 5/26/2011
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Message Closed w/FIX
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7 Replies Received
7 Replies Received
Related Documents & Media | VIN | 3GKEC16T21 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Lean Surge |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2001 GMC Yukon XL 1500 SLE
| VIN | 3GKEC16T21 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Lean Surge |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Video