how to test ignition coil without any tool

this engine is having lots of power and rough idling it's a common cause of a faulty ignition coil so I will first check if there is any bad ignition coil first start the engine and then start disconnecting the ignition coils connector one by one but don't remove the ignition coil when it's connected doing so will cause the high voltage spark to Arc backwards when it doesn't find their way out and damage the ECU or you can remove the injector connector instead to check which cylinder isn't working this cylinder isn't working but I don't know the problem yet so I will try swapping these two ignition coils together then I will check if the problem transferred to the other cylinder if the problem transfers to the other cylinder it indicates a faulty ignition coil and if it remains in the same cylinder then the ignition coil is good and there's another problem now the problem has transferred to the other cylinder so it's a faulty ignition coil so I will replace it foreign [Music] now it started working again if you find this video useful please subscribe so I can continue making videos thank you

Channel: Car care

Views: 58,313

Keywords: ignition coil, no spark from ignition coil, bad ignition coil, ignition coil tester, coil, engine shaking while idle, engine misfire, gas mileage

Id: fjXGG4fN_Z0

Length: 3min 11sec (191 seconds)

Published: Thu Mar 16 2023