Ignition coils
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Junior User
Joined: Feb 2005
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Ignition coils
I have a 2001. Will the ignition colis make the check engine light come on if there is anything wrong with them. The truck runs good am going to take a trip and was checking everything out I didn't want to pay a shop to check them out if nothing is wrong or if the check engine light would come on if something was wrong with them.
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Junior User
Joined: Feb 2005
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just asking about it. the check engine light isn't on.Was thinking about having tech hook computer up to check them but if they kick on the check engine light on.Don't see any reason to spend the money to check them.
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Senior User
Joined: Nov 2009
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From: Roseville, CA
99.9% of the time, you will get a light telling you something is wrong. Code reader will tell you what, most of the time. If a coil is bad it will show.
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If you have a bad coil you will know it, it will run like crap whether your check engine light is on or not. So to answer your question if the truck is running good and the check engine light is on you may have another problem but it's not a coil.
Senior User
Joined: Nov 2009
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From: Roseville, CA
Sorry, I sit humbled. In my experience the computer tells of miss fire and tells which cylinder if you have a code reader. However, On the trucks i have worked on, (mostly 97-04 v-8 and v-10's), The cell has not come on before I fix them. The customers have told of running like crap and I see the 'pending' code and not a light. Maybe the light would never have come on. Again, sorry, I sit here humbled. 99.9% is a ridiculous number also.
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Joined: Jul 2002
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From: Long Island USA
Not a problem, man... from the Tech Folder:
https://www.ford-trucks.com/forums/5...t-come-on.html
The V10 in most F-series that are over the 8500lbs at the time of manufacture, do not need to adhere to the OBD-II standards of emissions controls.
So, while not strictly required by the OBD-II standard, I still don't get why Ford did it this way. Maybe to keep the warranty claims down
https://www.ford-trucks.com/forums/5...t-come-on.html
The V10 in most F-series that are over the 8500lbs at the time of manufacture, do not need to adhere to the OBD-II standards of emissions controls.
So, while not strictly required by the OBD-II standard, I still don't get why Ford did it this way. Maybe to keep the warranty claims down
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