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2004 GMC Envoy XL SLE 4.2L Hesitation, Misfire
Hi, my question is why are fuel injectors fired shortly after ignition coil triggered? i have scoped fuel injector current at feed wire to all injectors and triggered off cyl 1 ignition coil. when i disable injectors with scan tool cyl 1 injector current drops...
FIX posted 2/26/2016
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Related Documents & Media | VIN | 1GKET16S84 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Misfire |
| Occurs | Hot, Cruise, Intermittently |
| Misc. | No Codes, Misfire Cruising Light Load TCC Applied Low RPM |
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Vehicle Data
2004 GMC Envoy XL SLE
| VIN | 1GKET16S84 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Hesitation, Misfire |
| Occurs | Hot, Cruise, Intermittently |
| Misc. | No Codes, Misfire Cruising Light Load TCC Applied Low RPM |
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