2003 GMC Yukon Denali 6.0L Poor Idle Quality, Misfire, MIL Lamp on
hi posting for my brother in law been getting code po300 missfire so we relaced wires and plugs maf meter and air filter truck will still set code at times and idles at 550rpm graphed o2 sensor all ok preformed ckp varation,sprayed for intake leak did not show...
FIX posted 8/13/2013
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 18 Replies Received (View Replies)18 Replies Received (Hide Replies)Related Documents & MediaRelated Documents & Media |
Message Closed
Vehicle Data2003 GMC Yukon Denali
Trouble Codes
|
Message Closed
Vehicle Data
2003 GMC Yukon Denali
VIN | [No VIN Available] |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |