Question about 2005 Ford Taurus SE

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Having codes P0306 and P0316 show up for 2005 Ford Taurus

I had spark plug and wire replaced and car ran fine for one day. Took it and had coil replaced. Car ran fine for one night then engine light came on again. Same codes showed up again and car is running sluggish after starting. Had the codes cleared and light came on again. What else could be wrong?

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Well code 306 is for a miss on cylinder six and code 316 is for a miss detected on startup, which you probably already know.
Since I assume you have replaced the ignition parts for that cylinder,
the next component to check is the injector. You may want to check fuel pressure too.

Posted on Jul 21, 2013

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The old give me money for nothing statement from a mechanic instead of knowing how to fix it.
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Okay, you were getting code P0306, and a P0316. You have replaced plugs and swapped coils around are you still getting the code P0306? or is it a different code for a different cylinder now? Replacing your crankshaft position sensor in this case will merely waste your money. Its doing its job, the P0316 is telling you you had a misfire in the first 1000 revolutions of your engine at startup, the P0306 is telling you its probably cylinder #6 that had the problem. there is no code there indicating your CKP is bad.

Now if you swapped your coils and the misfire is still on cylinder 6, its either injector problem, or base engine. If the misfire has moved to another cylinder, replace that COP.

Hope helps.

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Cauases or fault codes are not cut and dry, but here are the possible causes of codes P0316 and P0306 which are related codes.
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Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
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- Improper spark plug 6
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My car is cutting off every time im going under 1000rpm. mercury sable 2002. codes were p0301 p0302 and p0316 until i changed crank sensor and spark plugs now it says p0316 p0305 p0306.. whats going on?...


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



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