× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2007 Chevrolet Express 3500 6.0L MIL Lamp on, P0300
Posted to GM Driveability on 6/6/2011 12 Replies

We need some help from chevy guys!! ck engine lamp flashes and sets p0300. We cannot 'feel' any misfires but misfires show up on scan tool. Mostly #7, but other cylinders at random will show misfires. We have switched coil,wire, plugs, injector,removed and cle...

12 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Express 3500

 
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Express 3500

VIN 1GBJG31UX7
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, P0300
OccursAlways
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Express 3500

VIN 1GBJG31UX7
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, P0300
OccursAlways
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected