Question about 2004 Ford Taurus
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: trouble codes
A code P0304 may mean that one or more of the following has happened:
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
i've heard of the 5.4l's with the "cop" set up devolping moisture under a coil. if it hasn't again that is most likely the problem. to prevent this you could remove each coil and apply dielectric grease to the tops of the plugs.
Posted on Feb 18, 2010
Tips for a great answer:
Aug 11, 2014 | 2004 Ford Explorer Sport Trac
Aug 05, 2014 | 2005 Jeep Liberty
Jan 13, 2018 | 2003 Lincoln LS
Aug 13, 2011 | 2004 Mercury Montery
Jun 17, 2011 | 2000 Lincoln LS
Mar 24, 2009 | 2003 Pontiac Grand Am
84 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: