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1999 Chevrolet Tahoe LS 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 8/11/2015 22 Replies

P0300 with misfire only on cyl 6. Removed plug and found excessive buildup. Replaced plug. Misfire still on 6. swapped wire with #2 misfire stayed on 6. Removed cap and found heavy corrosion. Replaced cap and rotor. Still on 6. Removed valve cover to inspect v...

22 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet Tahoe LS

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Tahoe LS

VIN 1GNEK13R3X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Tahoe LS

VIN 1GNEK13R3X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected