2004 Ford Mustang missfire/no acceleration

2004 FORD MUSTANG

122,000 MILES • 3.9L • V6 • RWD • AUTOMATIC

JPESA1

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It has a horrible bucking and missfire when accelerating, it also backfires under the hood...as of now it will barley accelerate at all!! autozone code reader brought up codes- p0306 and p0316 and 316 is crank sensor defective according to autozone computers....any ideas?!?!?! please thanks

Dec 18, 2014 at 12:56 AM

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WRENCHTECH

AUTOMOTIVE REPAIR CONTRIBUTOR
20,761 POSTS

First, understand that there are no codes that tell you anything specifically is defective. They merely tell you that a situation occurred within a specific circuit and that needs to be troubleshooted by a tech to determine the actual problem.

Second, P0316 has nothing to do with a Crank Sensor. It means "Misfire on start up"

You likely have a weak coil in cylinder #6. In that situation I would change at least that one coil, preferably all of them and all of the plugs.Use only Motorcraft brand plugs in that car.

Dec 18, 2014 at 2:22 AM