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2004 GMC Envoy XUV SLT 4.2L Hesitation, MIL Lamp on, LACK OF POWER
vehicle lacks power and proper shift under load. no trans codes present. can manually shift vehicle into gear ranges without loss of power. transmission does not slip. in neutral engine revs normally without hesitation or other felt problems. no vacuum, electr...
FIX posted 3/20/2007
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Message Closed w/FIX
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Related Documents & Media | VIN | 1GKET12S64 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, MIL Lamp on, Lack of Power |
| Occurs | Always, Under Load |
Trouble Codes
| 1133 | insufficient switching b1s1 |
| 1171 | system lean during decel |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
Message Closed w/FIX
Vehicle Data
2004 GMC Envoy XUV SLT
| VIN | 1GKET12S64 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, MIL Lamp on, Lack of Power |
| Occurs | Always, Under Load |
Trouble Codes
| 1133 | insufficient switching b1s1 |
| 1171 | system lean during decel |
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
Video