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2007 GMC Savana 2500 4.8L Misfire
Posted to GM Driveability on 5/1/2014 12 Replies

We recieved vehicle from customer with misfire. We see mis fire on cyl 7 and cyl 8. It occurs under slight load at aprox 1300 to 1500 Rpm in park and can also be felt driving down the road. We have checked coils and swapped them with known good cylinders. We h...

12 Replies Received (View Replies)

  Related Documents & Media  2007 GMC Savana 2500

 
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car Vehicle Data

2007 GMC Savana 2500

VIN 1GTGG25V87
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MPI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Idle, Intermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2007 GMC Savana 2500

VIN 1GTGG25V87
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / MPI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, Idle, Intermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected