Friday, October 23, 2015

Test Solenoids

Testing a solenoid may influence you absent of a jelly.


A solenoid is a abundance of Accoutrement that supplies a sudden burst of bent. When an electric contemporary is applied to the coil of a solenoid, a terminal links two conductors cool to intact a trail so the capacious electrical contemporary that's needed to begin an vehivle, For example, can pass from a battery to a starter Engine. Provided there is a short in the solenoid coil, nevertheless, the terminal is unable to link the conductors, resulting in the clicking sound that is recurrently associated with a failed solenoid. Testing a solenoid with a voltmeter can aid figure whether the method is duration completed or whether the solenoid needs replacing.


Instructions


1. Allot the trustworthy post on the solenoid. One way to find this is To seek a thick braided cable that attaches the solenoid to the starter. The post with the braided cable is positive.


2. Place the positive lead of the voltmeter on the positive post of the solenoid. Ground the negative lead of the voltmeter on the body of the vehicle. Occasionally the terminal may stick, either to the contacts, or the sticking prevents the terminal from reaching the contacts. In either case, rapping on the solenoid can loosen the terminal and restore proper operation of the solenoid, at least temporarily.4. Remove the voltmeter and activate the starter again.


If the starter is activated and the voltmeter shows zero volts, the solenoid needs to be replaced immediately. If the voltmeter shows Twelve volts, then the solenoid may still be good, but the terminal plunger is unable to link the conductors.3. Tap the solenoid gently several times with the handle of a screwdriver.


There is a good chance the solenoid will function normally, but there is no way to foretell how long it will last. If the solenoid still does not start the engine and it continues making clicking noises, it needs to be replaced.