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International Automotive Technicians Network
2004 Chevrolet Suburban 1500 LS 5.3L Misfire
Posted to GM Driveability on 10/16/2007 26 Replies

Hi Chevy Techs,

I have been helping another shop on this Suburban and there is another vehicle at another shop doing the same thing. Number seven cylinder has a misfire at idle. When you raise the rpm's to around 1500, the misfire goes away. If you go above 1...

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  Related Documents & Media  2004 Chevrolet Suburban 1500 LS

 
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Suburban 1500 LS

VIN 3GNFK16Z74
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
P0307Cylinder 7 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Suburban 1500 LS

VIN 3GNFK16Z74
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
P0307Cylinder 7 Misfire Detected