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2006 Ford Ranger P0306 Cylinder 6 Misfire at 1000 RPM - Idle Rough and Sputters After Acceleration

Model: 06 Ranger Fault Code: P0306 Posted: 2008-07-23 20:33

My 2006 Ford Ranger exhibits a rough idle, sometimes severe, accompanied by a noticeable misfire. When the engine is idling poorly, I can hear the misfiring. Upon accelerating, the truck sputters for a few seconds before returning to normal operation. I have already replaced the spark plugs and plug wires, but the issue persists. The fault code P0306 indicates a misfire in cylinder 6, which is consistent with my symptoms. I'm seeking further diagnosis on potential causes such as fuel injector issues or internal engine problems.

Related fault codes
P0306
Comments (3)
Anonymous 2008-07-23 21:18

Start by cleaning all the fuel injectors. Then inspect spark plug #6 closely—does it show wet fuel residue or any oil-based deposits? If the problem continues after these steps, please reply for further discussion.

Anonymous 2008-07-29 20:14

How can I clean the fuel injectors on my 2006 Ford Ranger?

Anonymous 2008-07-29 22:11

Fuel injector cleaning typically requires a professional garage shop to perform the service and inspect for clogs or performance issues. It's recommended to have this done by a certified mechanic.