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International Automotive Technicians Network
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire
Posted to GM Driveability on 1/28/2013 18 Replies

Misfiring on all cylinders check for vacuum on dipstick tube to see if intake manifold gasket leaking causing misfires-none check fuel [...] install lab scope on crank sensor-ok install lab scope on cam sensor-random small spike at top of wavepattern not sure ...

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  Related Documents & Media  2003 Chevrolet Silverado 1500

 
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car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 1GCEC14X23
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire
OccursAlways, on Accel

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 1GCEC14X23
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire
OccursAlways, on Accel

Trouble Codes

P0300Multiple Misfire Detected