First checked engine light code found misfire p0305,changed all 6 spark plugs,spark plug wires and changed coil all at onces,test drive on side street good 5miles good runs good no check engine light.when my friend picked the car driving home about 20miles on the freeway when exited approaching the stop light friend feel the car stumble check engine light appear on dash board,i went to scan the code p0306 change one plug soon u start the car in a good 1min. start blinking the check engine light scan code same p0306,appreciate any help,thanks
Please go to this page for engine misfire causes.
SOURCE: check engine light blinks
Ok, i would ave the ignition coil pack tested for its operational valve asap if possible. this is either an ignition coil pack issue or, a bad ECM. the ECM controls the ignition timing in this vehicle so, the problem will be there if the crank shaft sensor and cam sensors are ok.
I would pull the trouble codes asap as well. this will help diagnosis this issue correctly. this can be done at a local auto zone or a local mechanics shop as well.
SOURCE: 2002 Ford Ranger check engine light indicating misfire
Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure
you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder
need to know that type Engine
The reason why the service light come on because it is a hard code
not a soft code.
Let me know
SOURCE: vehicle came in for check
A misfire at idle that smooths out at cruise is ALMOST ALWAYS caused by a vacuum leak. Take a hard look at your fuel trims at idle. If the Bank 2 Long Term Fuel Trim is more than + a couple points higher than the Bank 1 trim, your problem is most likely a vacuum leak. If the Fuel Trims even-out while holding the engine at 2000 RPM for about 20 seconds, then a vacuum leak is DEFINITELY your problem. I would suspect a leaking lower intake gasket leak because an upper plenum leak will normally affect all cylinders.
SOURCE: 2005 Ford Taurus Sputtering
stickingvalves collapsed lifters bent push rods fault ignition or damadged spark plug wires start it up at night look under the hood for sparks jumping from wires replace fauilty wires
SOURCE: 1998 crown vic police. Had check engine light with
your egr on that side is dirty try cleaning it aslo check intake boltsaround those clyinders.
Hi
P0305 is misfire in cylinder #5.
P0306 is misfire in cylinder#6.
P0316 is misfire on start up.
Have the plugs on those 2 cylinders, and the 2 fuel injectors checked, also
check for spark from the coil on those 2 plug wires.
Please get back to us if you have further query or else please
accept the solution.
Thanks for contacting fixya.com
3,305 views
Usually answered in minutes!
×