× 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

P0303 Diagnostic Trouble Code Discussion for December 2023

Cylinder 3 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2011 Buick Enclave CXL 3.6L No Start, Stall VIN: 5GAKVCED6B
P0303: Misfire 3. Hello fellow techs. This one came in on the hook a week ago and we've been trying to figure out what is going on since then. Customer said they were coming off the hwy and the engine stalled without any warning and would not restart. The engine cranks ...
December 07, 2023
2011 Mini Cooper Countryman 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: WMWZB3C55B
P0303: Cylinder 3 Misfire. Thank you everyone for any input. First off, shouldn't make a difference, but this Mini has a 6 speed manual transmission, IATN didn't give this option when filling out help form. This Mini was towed in, customer says there was a light on the dash when sta...
December 27, 2023