× 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
2009 Chevrolet Silverado 1500 LT 5.3L Misfire
Posted to GM Driveability on 6/30/2025 6 Replies

so i've got this chevy thats giving me trouble. It reports a misfire on cylinder 1 only when moving. you can power brake it and runs great. Runs great just sitting in the bay. its when you hit 30 mph it starts. Compression is at 180 psi. I performed a runn...

6 Replies Received (View Replies)

  Related Documents & Media  2009 Chevrolet Silverado 1500 LT

 
Open Help Request

car Vehicle Data

2009 Chevrolet Silverado 1500 LT

VIN 3GCEK23319
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCruise

Trouble Codes

P0301Cylinder 1 Misfire Detected
Open Help Request

car Vehicle Data

2009 Chevrolet Silverado 1500 LT

VIN 3GCEK23319
Engine5.3 L / 8 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCruise

Trouble Codes

P0301Cylinder 1 Misfire Detected