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1997 Chevrolet K2500 Suburban LT 7.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on
Posted to GM Driveability on 10/3/2012 10 Replies

Thanks ahead time for any help you guys can offer. I have this 97 big block chevy suburban 454 that at first came with misfire code p0300 . Replaced wires , plugs and 3 different caps and 1 injector. my scanner showed misfire first on #4 mainly and some on #7 ...

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  Related Documents & Media  1997 Chevrolet K2500 Suburban LT

 
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car Vehicle Data

1997 Chevrolet K2500 Suburban LT

VIN 1GNGK26J1V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire, MIL Lamp On
OccursIdle
Misc.4X4

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

1997 Chevrolet K2500 Suburban LT

VIN 1GNGK26J1V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire, MIL Lamp On
OccursIdle
Misc.4X4

Trouble Codes

P0300Multiple Misfire Detected