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2004 GMC Envoy SLE 4.2L Powertrain
swapped coils and spark plugs, spark plugs are ac-delco. no improvement misfire only at idle vehicle drive ok on freeway and city speeds. misfire is moderate.
FIX posted 5/19/2013
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Related Documents & Media | VIN | 1GKDT13S34 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Affected | Powertrain |
| Conditions | Misfire on Idle |
Message Closed w/FIX
Vehicle Data
2004 GMC Envoy SLE
| VIN | 1GKDT13S34 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Affected | Powertrain |
| Conditions | Misfire on Idle |
Video