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2003 GMC Yukon XL 1500 SLT 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 4/10/2007 19 Replies

This vehicle came into our shop with a check engine light on, when we checked codes, there were none, howevewr the vehicle was idling poorly, and the battery wwas bad. we replaced the battery and test drove and the code p0300 came up. The vehicle had never bee...

19 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Yukon XL 1500 SLT

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Yukon XL 1500 SLT

VIN 3GKFK16Z03
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 GMC Yukon XL 1500 SLT

VIN 3GKFK16Z03
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected