× 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

P0304 Diagnostic Trouble Code Discussion for September 2015

Cylinder 4 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 P0304
Help Request Posted
1999 Toyota Land Cruiser 4.7L Misfire VIN: JT3HT05J9X
P0304: Cylinder 4 Misfire Detected. misfire on 2 4 6 and 8 cyls 1 3 5 and 7 0 misfire count no vac leaks found all cylinders do fire unplug a coil while running it makes a diff.
September 15, 2015
2008 Honda Accord EX 3.5L Misfire
Hello Honda Gurus This v6 came in with a loud chirp noise that was engine speed related. Sounded like wwaterpump so changed that with timing belt coming up soon anyhow. No change in noise. long story short. Found a single cam lobe and roller on #4 intake rock...
September 18, 2015
2007 Mercedes-Benz C280 Luxury 3.0L Misfire, MIL Lamp on VIN: WDBRF54H27
P0304: Cylinder 4 Detection. ... Viscosity Every 5000 Miles. Maintenance Done as Required, Clean vehicle NO Engine Swaps or anything. After 40-60 Seconds of Cold Starting, I loose Bank 2 ( cylinders 4,5,6 ) Cleared Codes and after Start up P0019 Comes Bac...
September 18, 2015