2004 Chevrolet Impala, Engine/Propulsion waveform
Vacuum pattern at higher rpm. Cylinder #2 was missing at idle only and was not missing at this rpm. #2 cylinder had a stuck lifter that was preventing the intake valve from closing completely. No misfire was detectable above base idle speed.
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Vehicle Data2004 Chevrolet Impala 3.4L
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Vehicle Data
2004 Chevrolet Impala 3.4L
VIN | 2G1WF52E04 |
Engine | 3.4 L / 6 cyl / GAS |
Trans | 4-speed AutomaticTransaxle (Electronic) |
Delivery | Fuel Injection |
Subsystem | Engine/Propulsion |
Component | |
Condition | Known Bad |