Question about 2002 Ford Ranger Regular Cab
The missing tooth will be of no consequence as the rest ot the teeth in contact with the chain will always be correct
code p 0306 refers to cylinder 6 misfire detected ====causes ---engine mechanical fault ( could be a loose valve seat insert)---wiring---ignition/ fuel system---injector (blocked tip position it somewhere else and see if the fault moves to the new position)--- ECT/MAF sensor ---ECM
a timing chain problem will not show as a particular cylinder as it drives for all cylinders
Posted on Apr 23, 2017
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Posted on Jan 02, 2017
Sensors. Start checking the related sensors to your trouble codes. Most likely on of the primary sensors. Oxygen, Intake, Exhaust.
Posted on Jan 18, 2010
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.
Posted on Jan 30, 2011
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