Is there a voltage drop across a solenoid?
The voltage across the solenoid is given by the rate-change of the flux times the number of loops: The voltage drop is proportional to the current, which is the rate-change of the charge. Inductors: V = L (DI/Dt) The voltage drop across the inductor is proportional to the rate-change of the current.
What does current equal to?
The three most basic units in electricity are voltage (V), current (I, uppercase “i”) and resistance (R). It says that the current is equal to the voltage divided by the resistance or I = V/R. This is known as Ohm’s law.
What should the voltage be on a starter solenoid?
Today I checked the voltage to the solenoid while starting and found it was about 9.5 V (see http://www.4crawler.com/4×4/CheapTricks/Starter.shtml#EasyTest ). Voltage at the battery is about 12.4. So I’m thinking there’s a wiring issue between the battery and the solenoid or the ground. Has anyone run into this issue?
How can I tell if my starter solenoid is bad?
To see if its a bad ground, just check your +12v to multiple grounds. If you check the +12v to many different grounds and keep getting 9.5v then the incoming 12v has a bad connection or something somewhere.
How does the solenoid connect to the battery?
The starter solenoid has two terminals like your battery, and one of those terminals will connect to the positive wire terminal of your battery. Before jump starting the solenoid, here are the things that you need to check: 1. Check The Car Battery This is the most important thing to check before thinking about jumping the starter solenoid.
Why does my car not start when I jump the solenoid?
If your car won’t start and the problem is not caused by a dead battery, then you might need to jump the starter solenoid to get your car moving again. The starter solenoid is responsible for sending an electrical current to the starter motor.
Today I checked the voltage to the solenoid while starting and found it was about 9.5 V (see http://www.4crawler.com/4×4/CheapTricks/Starter.shtml#EasyTest ). Voltage at the battery is about 12.4. So I’m thinking there’s a wiring issue between the battery and the solenoid or the ground. Has anyone run into this issue?
How can I tell if my starter solenoid is defective?
If you do have battery voltage there, then check the negative cable going from the battery negative to the engine block for corrosion at either end. Last check is at the starter motor terminal. When the solenoid clicks, there should be voltage at this terminal. If not, the solenoid is defective.
Where does the power from the solenoid come from?
The solenoid has two wires on it; the little one is for the coil and comes from the ignition switch. This one appears to be OK. The big cable is the main power for the starter motor. When the solenoid clicks, it’s contacts make connection and should be supplying power to the motor from the big cable. Check for voltage on that terminal.
How do you replace the solenoid on a car battery?
If there is continuity (The screen displays a value of zero (or near zero), and the multimeter beeps. ), replace the solenoid. Disengage the outer lead of the starter field winding (Terminal C, see Fig. below), connect the positive pole of the car battery to Terminal 50, and negative pole to the starter Terminal C and the shell.