When the main contact point of the plate close, no current flows through the sucking coil. So, the magnetic field coil and the armature coil can get the electric current directly from the battery.
The starter solenoid is a fairly simple mechanism that transmits electrical current from the battery to the starter. When you turn the key, the solenoid engages, using the electrical motor in the starter to get your engine running. If the solenoid is not functioning properly, the vehicle may not start. Determining whether the issue is the starter solenoid, the battery or the starter itself can save you time and money when repairing it yourself and seeking to have the repair work done. Start by locating the starter and work to narrow down the cause of the issue.
Understanding Relays, part 4: Let’s not forget the solenoid
I thought after three stories I was done with relays, but I realized that there was the unfinished business of the starter solenoid, which is where this whole relay business started, bad pun aside. Now that you know everything you need to know about relays, the workings of a solenoid (a starter solenoid, in particular) can be framed in the appropriate context.
What happens if the starter solenoid is bad?
When the solenoid goes bad, something happens so there is inadequate or no current to the starter when you turn the key. Internal corrosion may freeze the slug in its “away” position. The power contacts may burn or corrode, adding enough resistance to the circuit so that the starter doesn’t engage properly, or doesn’t turn the engine over. And that’s what happens when a solenoid goes bad — the engine won’t turn over.
How to Check a Starter Solenoid or Remote Relay
Haynes offers the best coverage for cars, trucks, vans, SUVs and motorcycles on the market today. Each manual contains easy to follow step-by-step instructions linked to hundreds of photographs and illustrations. Included in every manual: troubleshooting section to help identify specific problems; tips that give valuable short cuts to make the job easier and eliminate the need for special tools; notes, cautions and warnings for the home mechanic; color spark plug diagnosis and an easy to use index.
Ford Starter Solenoid Troubleshooting Replacement & Function
The return springs are needed because the starter motor must not turn more than it has to in order to start the engine. The reason is partly that the starter uses a lot of electricity, which quickly runs down the battery.
How Does a Solenoid Work?
A solenoid is a coil of wire in a corkscrew shape wrapped around a piston, often made of iron. As in all electromagnets, a magnetic field is created when an electric current passes through the wire. Electromagnets have an advantage over permanent magnets in that they can be switched on and off by the application or removal of the electric current, which is what makes them useful as switches and valves and allows them to be entirely automated.
Continuous Duty Solenoids vs. Regular Starter Solenoids: Why They Aren’t Interchangeable
A century ago, in order to start a car’s engine you had to crank it by hand. That system was quickly done away with for the sake of convenience, of course. In order to be effective, though, the starting mechanism has to be able to drive the engine fast enough for it to generate power on its own — a tall order, as it requires a lot of power.