× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2003 GMC Yukon Denali 6.0L Misfire, MIL Lamp on
Posted to GM Driveability on 12/5/2009 24 Replies

Good morning, I have a 03 Yukon Denali 6.0L. The issue is a P0300 misfire severe enough that the MIL will flash. This truck is my Mothers vehicle. This situation happened a couple months ago. No problem was found at that time. It is intermittent. Currently not...

24 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Yukon Denali

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Yukon Denali

VIN 1GKEK63UX3
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 GMC Yukon Denali

VIN 1GKEK63UX3
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected