Remove it and test it. A good service manual for your car should tell you what to look for. If you don't have an ohm meter to test it, remove the coil and take it to a reputable auto parts retailer in your area.
Asked in American Cars, Oldsmobile
What would cause no spark on a 1983 Oldsmobile delta 88 with a 307CID V8?
It could either be a bad ignition coil, a bad ignition rotor, a bad ignition cap, a bad ignition control module (if equipped), or a bad coil to cap wire. ...
Asked in Car Starting Problems
Will a bad ignition coil in a 2000 town car cause the car not to start?
Yes, a bad coil will prevent the ignition from firing and the engine will not start. ...
Asked in Chevy 305
1985 Chevy small block 305 no spark to the ignition coil?
Ignition coil is bad, is it right on top of the cap maybe a bad wire in the wirng harness or bad connector. ...
Asked in Car Starting Problems
What happens when the ignition coil is bad?
When an ignition coil goes bad the car will not run right, or not at all. An intermittent coil will cause shudder, or a jerking motion. When the coil has no output then the cylinder that the coil feeds cant burn the fuel and cause power. ...
How exactly do you know if the crank shaft sensor is bad?
when the hall effect and ignition module are good, the injectors and coil no work maybe this sensor is bad ...
Asked in Ford Expedition XLT
Ignition coil on a 1998 ford expedition XLT?
Go to AutoZone have them rear your codes for FREE. This way you will know which Coil Pack is goig bad / or is bad. If you have a 4.6L you will have only 2 Big Coil Packs. If you have the 5.4L you will have 8 Coil Packs , One coil pack for each cylinder. ...
Asked in Car Stalling Problems, Ford Expedition
Can a bad catalytic converter damage the ignition coils or a bad ignition coil can cause to catalytic to go bad on a ford expedition?
A bad coil can damage a converter. If the engine is misfiring, it will cause raw fuel to get into the converter and that can cause failure. ...
Asked in Car Electronics and Lights
How can you tell if an ignition coil needs to be replaced?
It is important to recognize the signs of car parts going bad. The symptoms of an ignition coil going bad are bad fuel economy, backfiring, starting problems and engine misfiring. ...
Asked in Honda Prelude
What could cause a no spark condition in a 1995 Honda Prelude?
bad ignition coil, bad plugs. bad plug wires, bad ignition control module........ ...
Asked in Cars & Vehicles
What color is the spark if the ignition coil is good?
The spark is always blue. If your coil is bad your engine will misfire.
Asked in Chevy 350
What causes no firing on a 350 v8 motor?
It would REALLY HELP to know the year. Could be these things. Ignition module in distributer, pick-up coil in distributer, Bad COIL wire, Rotor button. Depending on the year 1996 and up it could be a CAM sensor, CRANK sensor, Ignition coil, ignition module. ...
What are symptoms of a ignition coil?
A bad ignition coil normally won't allow your engine to start given there is no spark. If it is starting to go bad, it causes misfiring which can be noticed as a stutter, or random shake of the engine. Check the ground of the coil before replacing it. ...
Why isn't there any spark to the distributor on a 1984 Chrysler Fifth Avenue?
No spark could be caused by several things: no voltage to the coil or ignition system; a bad coil; a bad ignition system; bad pickup coil(s) in the distributor; a bad coil wire; or more serious engine problems such as a broke camshaft or camshaft timing chain. If your distributor is fine and the coil is good as well as the ignition system is in working order, you might check the computer on the side of the air cleaner. ...
Asked in Chevy Camaro Z28
What is the cause for no ignition in a 87 iroc z28 camaro?
bad coil, bad ignition control, bad ecu, blown fuse and or switch need more info ...
Asked in Audi, Who Would Win, Fire Extinguishers
What is would be causing an Audi 100 ignition not to fire?
Bad coil? Bad dist. cap? Bad rotor?
Asked in GMC Envoy
How do you know when the ignition coil fails in a 2002 GMC envoy?
Bad idle, lack of power. Vehicle may shake or vibrate at idle.
Asked in Acura Legend
Why won't my 87 acura tachometer work and could it be affected by a bad ignition coil?
A bad ignition coil can cause your 1987 Acura tachometer to quit working. A bad tachometer cable or ground wire can also cause it to quit working. ...