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1999 Chevrolet Tahoe LS 5.7L Misfire, Poor Fuel Economy
Posted to GM Driveability on 12/3/2007 9 Replies

This Tahoe misses at idle steady at an idle on number 7 cylinder. compression great, spark great and took upper plenium off and poppets and injectors great. Now only diff is at idle oil pressure light came on and pressure at idle is 1.5psi. at 1000 rpm up to 4...

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  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)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, Poor Fuel Economy
OccursIdle

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)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, Poor Fuel Economy
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected