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Would a bad ignition coil cause my f250 to stop running

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  • Anonymous Dec 04, 2012

    Not on a 5.4 as you have 8 of them

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  • Cars & Trucks Master
  • 14,363 Answers

Yes it sure will.No fire to the plugs.

Posted on Dec 04, 2012

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Posted on Jan 02, 2017

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chuck943
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SOURCE: How do I find ignition coil B

On this vehicle it will be cylinder no 2.
2nd cylinder on passenger side.

Posted on May 16, 2009

  • 1 Answer

SOURCE: 1999 ford crown vic with ignition coils going bad a lot.

have look at ur wires that is caming from the car in to the coil it self

Posted on Mar 27, 2010

Testimonial: "Thanks for the info. I did replace coils made in the good ol USA and the car is running much better. Better gas mileage as well. Thanks again."

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1 Answer

Can a bad ignition switch cause a 1975 f250 to start when key is turned and then stop running when key is released?


Yes that is the classic symptom of a defective ignition switch. They were recalled for this years 18 years ago. I am a retired Ford dealer tech.

Sep 04, 2016 | Ford F-250 Cars & Trucks

2 Answers

Engine randomly cut out when going over rough roads/ bumps.


Hello Tori, I think you have a heat related ignition failure. Your truck runs fine until an electrical component warms up and quits running but will restart after it cools down. I suspect you have a bad ignition module and/or bad pick up coil inside of the distributor.

Oct 10, 2015 | Cars & Trucks

1 Answer

No. spark will not start


check see if coil getting power.if no check ignition fuse if yes getting power at ignition coil.either ignition coil is bad or thick film module on distibutor faulty.ignition timing way off or you have worn distributor cap and rotor. worn spark plugs and wires.

Jul 10, 2013 | 1991 Ford F250

1 Answer

Engine wont stay running


sound like engine not getting enough fuel restricted fuel filter faulty fuel pump.intake vacuum leak.stuck open egr valve.could have dead cylinder caused by bad spark plugs or wires could have faulty fuel injector.look for loose wires at alternator or ignition coil.ignition timing off.

May 29, 2013 | 1992 Ford F250

1 Answer

I have a f250 supper duty ford that starts but will stop after it is running have put a new fuel pump and filter on and it does the same speed has nothing to dowith it .


An ignition coil that is completely dead will prevent the engine from starting or will stop the engine if the car is running at the time of failure. This is because no current will reach the spark plugs. An ignition coil that is failing will still provide current to the plugs, but it might not be enough for a full spark and the car will run sluggishly. If the current being provided by the coil isn't consistent, the car will run rough. good-day !



Dec 14, 2011 | Cars & Trucks

1 Answer

Motor start but does not run


Are you saying that the motor runs until you stop cranking it? or just that it truns over while the starter is engaged but doesn't fire at all?
If it's running while cranking but stalls immediately after you release the key and allow it to go into the "Run" position, then the ballast resistor of the ignition system is most likely bad. The idea is that on older cars with electronic ignition, the starter motor caused such a big voltage drop on the cars electrical system that the ignition coil wasn't provided a high enough voltage for proper spark to occur, so they wired them such that the ignition coil could handle the low voltage which was present during the cranking of the starter, but when you stopped cranking and the engine was running normally, suddenly without the voltage drop of the starter, the voltage would be to high and would damage the ignition circuit. Thus a 'ballast resistor' was added to the ignition circuit and it is only in line when the car is in the "run" position. This allows the ignition system the proper voltage to operate whether cranking or running, but sometimes the ballast resistors go bad, causing the engine to run while cranking but causing an open circuit in the ignition system when placed in the "run" position.
Good Luck.

Mar 28, 2011 | 1993 Toyota Corolla

2 Answers

No spark at distr. new starter battery selenoid ignition coil 5.8 1990 f250


Hi and welcome to FixYa!

As a first course of action, I strongly suggest that you replace the distributor coil. If the coil is worn out there will be no spark to the distributor going to the plugs. Once replaced you'll be good.

Hope this helps and thank you for using FixYa! Have a good one!

Feb 12, 2011 | 1990 Ford F250

1 Answer

I have a 91 f250 with 7.5 liter and no spark. where may the problem be?


Use a test light and check to see if there is battery voltage present at the "Pos" (+) or positive side of the ignition coil when the key is in the "Run" position if no battery voltage is present at the ignition coil when the key is in the "Run" position then there is a power supply or wiring problem to the ignition coil, and if there is battery voltage at the "Pos" side of the ignition coil, then with the test light on the "Neg" (-) or negative side of the ignition coil crank the engine over. The test light should flash or pulse indicating that there is a dwell signal to the ignition coil, and if there is battery voltage to the "Pos" side of the ignition coil and there is a dwell signal to the "Neg" side of the ignition coil, and there is still no spark from the ignition coil, then the ignition coil is faulty. If there is battery voltage to the "Pos" side of the ignition coil, and there is no dwell signal to the "Neg" side of the ignition coil, then the Ignition module, or the pick-up coil/stator would be the most likely cause of the problem.

Check to see if that ignition system actually used an ignition module on the side of the distributor, and if the distributor does have an ignition module mounted on the side of it, then it is most likely faulty and those modules were prone to failure from excessive engine heat. Also, remove the distributor cap and inspect the connector from the pick-up coil/stator where the ignition module connects to it, and if the connector is dark or burnt looking then also replace the pick-up coil/stator or the entire distributor. You might need a Ford ignition module wrench to remove the ignition module from the side of the distributor and most auto part stores will have one for only a few dollars.

Here are some images to assist you and notice the white connector on the ignition pick-up coil/stator and when that connector turns dark or burnt looking then it is faulty.


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Jun 19, 2010 | 1991 Ford F250

1 Answer

2000 f250 super duty coil#4


Many times a bad plug will cause the coil coded to be dropped. If you have not changed them be sure you change all of them (8 or 10)

Jan 11, 2010 | 1992 Ford F250

2 Answers

Runs rough


So, what you wants from me,?

if its new car than you ahve to contact to your showroom or certified mechanics

cause i think you have not try to yourself without any experience for your car,

THNX

May 20, 2008 | 2000 Ford F250 Super Duty Crew Cabs

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