Solenoid
A solenoid is an electromagnetic coil that moves a plunger.
What is Solenoid?
It is used in valves. It is in starters. Transmissions use many. Measuring coil resistance and checking the control signal helps diagnose solenoid faults. Examples include starter solenoids, injector coils and transmission shift solenoids. Like other coils, solenoids create voltage spikes when switched off, so control circuits include protection. A solenoid that clicks but does not move its valve may be mechanically stuck. Sticking is often caused by dirt or old fluid.
How it works
Current creates a magnetic field.
Why it matters for your car
Coils can burn out. Check resistance.
Other terms
- Axle Stands (Jack Stands)
- Battery Module
- Catalyst Efficiency Monitoring
- Charge Limit (State-of-Charge Target)
- Distilled Water (Demineralised Water)
- DPF Differential Pressure Sensor
- Driving In Heavy Rain
- Footwell
- Gear Ratio
- Ignition Lead (Spark Plug Wire)
- Lane Departure Warning
- LFP Battery (Lithium Iron Phosphate)
- Low Emission Zone (LEZ)
- Low-Profile Tyre
- Megawatt Charging System (MCS)
- Neutral Safety Switch (Inhibitor Switch)
- Paint Etching (Bird Dropping And Sap Damage)
- Primer (Primer Surfacer)
- Skateboard Platform (EV Platform)
- Tyre Sidewall Damage