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I assume you are talking about the starter relay or solenoid coil. If the engine is cranking but not starting, the coil is most likely good. If Nothing happens, check battery voltage at the coil. If voltage is present, coil (winding inside the solenoid or relay) is most likely bad. If no voltage present, then check for corrosion, loose terminal fittings, or any wire or cables that go from the battery to the starter.
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∙ 13y ago
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What is wrong with a 1989 Cressida if you can't get a spark from the coil?
If you know the coil is good then the Igniter is bad. It is right below the coil.
How do you know there is spark to the plugs and coil on a 1974' chevy 350 engine?
Connect a known good spark plug to a spark plug wire and ground the threads to the engine while cranking. If there's spark to the electrode you know the coil is good and it's sending current through the wire.
Is a coil a conductor?
heater coil is good conductor of electricity
Is a heater coil a conductor?
heater coil is good conductor of electricity
How do you know if a ignition coil still works?
Is this a conventional coil, a hei coil, or a coil over each plug?? need more info, but is has a wire, hold approximately 1/4 inch from ground and see if archs, if High Energy coil, hold plug wire about 1/4 in from ground and see if fires, if coil over plug individualy, not sure how to check them. good luck
How do I know the direction of the torque acting on coil whether its vertical or horizontal?
To know the direction of the torque acting on the coil, whether the coil is vertical or horizontal, you will compare the direction of the magnetic force or its rotation to the direction of the coil. If the coil is vertical and the magnetic force is in the direction of the coil rotation, then the direction of the torque will be the same.
How do you know if your coil pack is bad?
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What heat can a small copper coil produce at 120 volts?
Need to know what the size of the wire is in the coil and the physical diameter of the coil.
What would cause your 1995 grand marquis coil not to fire?
Maybe the coil is not good ?
How do you test the coil on lesabre 3800 engine?
I think you remove one of the spark plug wires from the coil and hold it far apart from the coil. Have someone turn the key so the car is turning over. Bring the spark plug wire closer to the coil and if there is spark the coil is good. Note: if you hold to close you will get a very good jolt of spark if the coil is good, that is why you start far away and work your way closer.
How do you find the length of a coil of wire without unraveling it?
You know that each 'wrap' or turn of wire in the coil has to go all the way around the coil-form, and you know how to calculate the distance around a circle. So all you have to do is count the number of times the wire goes around the coil, measure the coil's diameter, calculate its circumference, and multiply that by the number of turns in the coil.
How do you diagnose a bad coil pack on a 5.4 liter ford?
This is how I diagnosed my 5.4 liter coil packs, I isolated the cylinder that was misfiring and then took a know coil from a good cylinder and swapped with the suspected bad coil. When the misfire went to the specific cylinder I swapped, I replaced that coil. Note- It is advised to replace all coil packs if you can afford too! Summit and Stylin has Hi performance coils for the fraction of cost as a single cost of the dealer's price.
