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2002 GMC Savana 3500 5.7L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 1/25/2010 6 Replies

Truck came in with a code P0300. Wet down ignition wires and found that the wires were arching. Replaced the ignition coil , wires, cap, rotor and plugs. Problem code P0300 still excists. Performed cylinder leak down test on effected cylinders ( cyl. 7&4), tes...

6 Replies Received (View Replies)

  Related Documents & Media  2002 GMC Savana 3500

 
Message Closed w/FIX

car Vehicle Data

2002 GMC Savana 3500

VIN 1GTHG35R32
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways, Cold, Hot, Under Load, on Decel, Idle
Misc.Cargo Van

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 GMC Savana 3500

VIN 1GTHG35R32
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways, Cold, Hot, Under Load, on Decel, Idle
Misc.Cargo Van

Trouble Codes

P0300Multiple Misfire Detected