Note: These are general instructions for all types of automobiles.
Having a busted regulator is such a hassle. It can damage and even cause your battery to not function at all. This is because your voltage regulator is the one that provides a constant charging voltage from the alternator to the battery of your vehicle. To avoid the worst from happening, your automobile has a warning system to inform you ahead of time if your regulator is not operating the way it should.
If you have a voltage regulator that needs to be replaced, here is a guide on how to take it out and put a new one in its place. However, be sure to go over your vehicle's manual before trying to install a new voltage regulator, as the steps may vary in some automobiles.
Tools and Materials Needed:
- New voltage regulator
- Work gloves
- Adjustable wrench
- Electrical tape
- Fine sandpaper
- Electrical contact cleaner
Safety Reminder: Always wear protective gear, such as safety goggles and gloves, while working on your vehicle.
- Lift the hood of your automobile and remove the ground cable from the battery.
- Take the wires out of your busted regulator. Get the electrical tape and use it to cover the end of the battery wire. This prevents the possibility of sparks when the wire comes into contact with metal components. Disconnect the regulator from the alternating by taking the bolts or screws out using a screwdriver or an adjustable wrench.
- Check the bottom of the regulator and find two carbon brushes. Take them out and get the sandpaper to thoroughly clean the contact ends of the brushes. Put electrical contact cleaner to the carbon brushes, and place them inside your new regulator. Get the wear patterns that are on the brushes to match the patterns on your new regulator. If they won't match, your regulator would not function the right way.
- Delicately attach your new voltage regulator to the alternator, so as to avoid damaging the brushes. Install the bolts or screws to the regulator and connect the wires with a screwdriver or an adjustable wrench. Then, reconnect the ground cable to your vehicle's battery and put down the hood.
- Start your automobile's engine. Rev it at 1,000 to 1,2000 rpm. Check the voltmeter that is located on your dashboard to see the battery voltage. If the voltage is not within the 13.5 to 14.5 range, go over the instructions that came with your new regulator to know how to adjust the voltage in your vehicle. Check the voltmeter again after doing the adjustments. When it is finally within the 13.5 to 14.5 range, you're good to go!