Q: Have a Ford Expedition and the coils packso keep going out

asked by on

Running bad and I have replaced the same coils twice

My car has 23000 miles.
My car has an automatic transmission.

Hey there. This is a known issue with the Ford Expedition, and is often times related to a spark plug problem. There is a gap between the core of the spark plug and the electrode on the end of it. This creates a spark which is what lights the fuel charge in the engine, which causes it to run. When this gap is too large, this can cause the coil pack to fail due to an excessive amount of voltage being put through it. I would suggest having an expert from YourMechanic come to your home to check all of the spark plugs and determine if they are gapped correctly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Have a Ford Expedition and the coils packso keep going out

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: steering wheel shaking

Hi there. Thanks for writing into YourMechanic.com about the issue with your 2005 Suzuki Forenza. At first glance, it appears that the problem you're describing sounds like a misfire with one of the cylinders. It could be related to your...

Q: My truck feels like it won't go in drive while I'm driving

You should have the computer and transmission scanned to see if the system is storing codes that can be fixed without an internal transmission issue. The codes will need to have the pinpoint tests done to isolate the problem. ...

Q: Is there some trick to taking the coil pack off a spark plug?

Hey there. The coil pack is not connected directly to the spark plug. There should be a spark plug wire running from the coil pack to the spark plug with a small 'boot' on the end of the wire that...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.