Wednesday, November 5, 2014

How Know If My Starter Motor Isn't Good

In some cases the starter can change into over-heated provided it is further accelerated to the exhaust.

Instructions

1. Lift the hood.
The trail for the starter Engine consists of a fuse, relay, ignition switch, security course, battery, wiring, starter solenoid and starter. The starter should be checked inaugural, and provided create to be in agreeable case, test remainder of the plan, starting with the battery. The general problems that can author a starter failure are the starter solenoid, Bendix or the Engine.



Allot the starter by next the leading heavy-gauge wire. This wire runs directly from the decided terminal on the battery to the starter. Using the voltmeter, research for 12 volts where the wire connects to the solenoid on the starter by turning the voltmeter on and adjusting the voltage scale to 20 volts.


2. Connect the charcoal edge to a admirable ground. Probe the connexion with the blooming front. Provided the proof shows no voltage or perfect low voltage, evaluation the battery terminals for looseness or corrosion. Touch the great terminal on the battery with the bittersweet front rank, and the denial with the charcoal govern. There should be 12.5 volts. Whether the voltage is lower, the battery is undercharged or evil. The battery should be charged and retested. Once charged, shot to begin the engine again. Provided the engine starts, trial the alternator by probing the positive terminal. The voltage should be 14.5 volts if the alternator is good.


3. Check the small wire on the starter solenoid, which is the actuating wire from the ignition switch, by having a helper hold the ignition key in the "Start" position while you probe the small wire for power. There should be 12 volts every time the ignition is in the "Start" position. If it is hard to probe the wire on the solenoid, the wire can be removed for testing. If there is power to the small wire and power to the large wire from the battery, the starter is bad. Remove the negative terminal on the battery with a wrench and use a suitable socket to remove the wires on the solenoid. Remove the two bolts securing the starter to the engine and remove the starter.


4. Lay the starter down, and with a pair of jumper cables, check the starter to see if the solenoid is bad or the starter itself. Connect one of the black leads of the jumper wire to the battery negative terminal and the other end with the black lead to the starter body. Connect the red lead to the starter terminal below the solenoid. Do not let the lead touch the body of the starter. Briefly touch the opposite red lead to the battery positive terminal. If the starter motor is good it will actuate when power is supplied. If it does not work, it is finished and needs to be replaced. If it does work, the starter needs a new solenoid.


5. Check the fuse if the starter was found to be good in the previous steps. The fuse is in the fuse and relay box on the driver's fender well. If the fuse is good, look for the starter relay and pull it out. With the key off, there should be power at one terminal where the relay was removed (use the voltmeter to check for power). If there is no power, there is a wiring problem from the fuse to the relay. If there is power, have a helper turn the key to the "Start" position. Check for a second terminal to have power. If there is no power to the second terminal the ignition switch is bad. If there is power the relay is bad.