2019 GMC Sierra 2500 HD 6.0L Poor Idle Quality, Poor Idle Quality
Hello All, came in with a slight misfire at idle. CEL on with random misfire code P0300. using modis found that the only cylinder with misfire counters was cylinder #6. Plug looked ok but installed a an AC Delco plug anyways. switched #4 and #6 wires but s...
Summary posted 10/4/2022
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Vehicle Data2019 GMC Sierra 2500 HD
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2019 GMC Sierra 2500 HD
VIN | 2GT22NEG6K |
Engine | 6.0 L / 8 cyl / FLEX |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / port |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Poor Idle Quality |
Occurs | Hot |
Trouble Codes
P0300 | Multiple Misfire Detected |