× 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

P0300 Diagnostic Trouble Code Discussion for January 2026

Multiple 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 P0300
Help Request Posted
2016 Jeep Grand Cherokee Limited 3.6L Misfire VIN: 1C4RJFBG8G
P0300: Multi misfire. ... bank 2 head gasket was replaced, customer called and said cel was back on and flashing. Set code p000a and p0300. Test drove and found all bank 1 would misfire after hot. Ran the vvt actuator clean debris procedure 3 times per recommendation from frie...
January 23, 2026
2016 Jeep Grand Cherokee Limited 3.6L Misfire VIN: 1C4RJFBG8G
P0300: Multi misfire. ... customer called and said cel was back on and flashing. Set code p000a and p0300. Test drove and found all bank 1 would misfire after hot. Ran the vvt actuator clean debris procedure 3 times per recommendation from frie...
January 24, 2026