× 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
2005 Chevrolet Silverado 2500 HD 6.0L Misfire
Posted to GM Driveability on 4/8/2020 18 Replies

This is my pov. Intermittent #2 misfire. #6 misfires slightly occasionally. The misfires are only felt at idle. Seems to only show on scanner at idle. I replaced the cats due to the high backpressure. Not much power gain like I though it would. The truck d...

18 Replies Received (View Replies)

  Related Documents & Media  2005 Chevrolet Silverado 2500 HD

 
Message Closed w/Summary

car Vehicle Data

2005 Chevrolet Silverado 2500 HD

VIN 1GCHK29U55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Mpi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected
Message Closed w/Summary

car Vehicle Data

2005 Chevrolet Silverado 2500 HD

VIN 1GCHK29U55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Mpi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected
P0302Cylinder 2 Misfire Detected