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1997 GMC C3500 Sierra SL 7.4L Excessive Emissions, Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 11/2/1999

MIL light on whenever engine is [...] code returns when engine is [...] crank shaft and cam shaft censor. No timing chain play [...] good. Ran injector cleaning . No one cylinder stands out on [...] cylinders run 24 [...] censors o2 readings move [...] wi...

  Related Documents & Media  1997 GMC C3500 Sierra SL

 
Message Closed w/FIX

car Vehicle Data

1997 GMC C3500 Sierra SL

VIN 1GDKC34J3V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, Misfire, MIL Lamp On
OccursHot, Under Load, on Accel
Misc.Vortech Injected,Hydro Boost

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency
Message Closed w/FIX

car Vehicle Data

1997 GMC C3500 Sierra SL

VIN 1GDKC34J3V
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, Misfire, MIL Lamp On
OccursHot, Under Load, on Accel
Misc.Vortech Injected,Hydro Boost

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency