Why does my ignition system have no spark?
If the wire doesn’t have continuity on both sides of the harness there is a open circuit and the ignition system will act as if the pickup coil is faulty though it is actually a wiring problem. Part 2 of dealing with no spark ignition system problems will go further into detail on component inspection.
Can a bad solenoid be a sign of a bad starter?
Intermittent operation can be a sign of a failing starter solenoid. Other issues that present like a bad solenoid. Problems that might cause your car to act like it has a bad starter solenoid can include: Bad battery – If the battery voltage is low it will be unable to provide enough power to start your engine.
What to do if your solenoid is not working?
A quick test of the solenoid is to jump from the pos terminal of the battery to the wht/red wire – if the solenoid closes and the runs, then the solenoid is fine and you need to troubleshoot the start switch. If the solenoid does not close, then you need to repair the solenoid grounding.
What to do when your car has no spark?
When taking on a no spark condition one needs to be patient and have an open mind. Becoming fixated on specific components is a good way to not find the true problem. It’s far more likely that there is a problem with a wire, connector, ground, or switch than an actual ignition system component.
When to know if your solenoid is bad?
Diagnosing a Problem With Your Solenoid. If your car won’t start and you’ve changed your battery or jumped it, and if there’s no sound at all out of the starter when you turn the key, then it’s a good bet that your solenoid is bad. Depending on the solenoid, you may or may not be able to test it.
Can a four wire solenoid start a lawn mower?
If your solenoid is a four wire solenoid, check both small wire terminals as one is ground and the other is power from the ignition switch. If your solenoid is a three wire solenoid, make sure the solenoid body is not corroded where it bolts to the chassis of the mower as this is your ground path back to the battery.
What to do if there is no spark in the ignition coil?
Just like before: while cranking the engine, use a multimeter to check for voltage at the two primary wires of the ignition coil. Connect your back multimeter lead to the black ground wire at the coil, and with the red lead to the lighter color wire (usually blue or purple, but it varies).
Is it possible to knock out a solenoid?
If you’ve jumpstarted your car recently or helped a friend jumpstart theirs, then it’s possible that you’ve accidentally knocked out your solenoid.