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easyautodiagnostics.com/ford/3.0L-3.8L/how-to-test-the-coil-pack-1

Symptoms Of A BAD Ford Ignition Coil Pack. The following are the most common symptoms of a BAD Ford ignition coil pack but not limited to: The check engine light is on: Due to Misfire Codes (P0300, P0301, P0302, P0303, P0304, P0305, P0306). Or due to other ignition system malfunction codes.

www.carsdirect.com/car-repair/how-to-tell-if-you-have-a-faulty-coil-pack

On newer vehicles, a coil pack replaces the distributor. It is an electronically controlled pack of ignition coils regulated by the car's computer and is used to create the spark for each engine cylinder's spark plug.

www.fordf150.net/forums/viewtopic.php?t=94875

I've seen a lot of posts on here talking about the coil packs going out and having to fix them, but I haven't read a description of how their truck was acting. My CEL isn't coming on, so I can't check the code. My friend said to pull the packs off one by one and smell them for gas which would indicate it's not firing.

itstillruns.com/signs-weak-coil-pack-ford-5915645.html

Inspecting the ignition coil housing for cracks is a great way to determine if a coil is underperforming. Any coil with a cracked housing should be replaced, because coils are exposed to constant heat when the vehicle is on. This can cause plastic housings to crack, allowing moisture into the coil pack.

www.fordownersclub.com/.../topic/34409-what-are-symptoms-of-failing-leadscoil-pack

My focus coil pack failed recently symptoms were hesitation in acceleration and running rough also engine light came on. Was the coil pack you bought a ford original part as it is common for pattern parts not to solve the problem or fail quickly.

www.reference.com/vehicles/symptoms-bad-coil-pack-9551e2a700ce3d13

Symptoms of a bad coil pack include rough engine idling, misfiring, lack of power during acceleration, gasoline odor emanating from the exhaust system and illumination of the check engine light.

www.ford-trucks.com/forums/172237-coil-pack-going-bad.html

Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997-2006 Expedition & Navigator > ... Coil pack going bad? ... I guess I'll find out this Friday if it's a coil pack or not. The symptoms came and went and finally this morning the service engine soon light came on. Mama's not too happy and I can't wait to see what this is going to cost me.

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-coil

Usually a faulty ignition coil will produce a few symptoms that alert the driver of a potential issue. 1. Engine misfires, rough idle, and loss of power. One of the most common symptoms associated with a faulty ignition coil is engine performance issues.

www.youtube.com/watch?v=rjtNY_P2o2I

engine miss due to coil pack failure at number 5 spark plug.

cartreatments.com/bad-ignition-coil-symptoms

Symptoms of a Bad Ignition Coil. If a vehicle is behaving intermittently and is giving its driver some trouble in a smooth driving, then it could indicate that the ignition coil of that vehicle has gone bad. The failed or weak ignition coil symptoms may vary depending on the severity of the ignition coil failure.