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2001 Chevrolet Express 1500 4.3L Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 6/26/2007 24 Replies

This one has got me stumped. Customer complaint is MIL on and pinging noise under load or at highway speeds. Test drive vehicle, with Tech II scan tool, and watch misfire data. Found that cylinder #2 is misfiring on scan tool but no noticable misfires are felt...

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  Related Documents & Media  2001 Chevrolet Express 1500

 
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Express 1500

VIN 1GCEG15W81
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / csfi
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire, MIL Lamp On
OccursHot, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Express 1500

VIN 1GCEG15W81
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / csfi
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire, MIL Lamp On
OccursHot, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
P0335Crankshaft Position Sensor 1 Circuit Malfunction (No Signal)