Tips: Ensure the battery is fully charged before installation.
#2002 MAZDA PROTEGE 5 ALTERNATOR INSTALL#
Install the new alternator and tighten the mounting bolts with a ratchet.Compare the new alternator with the old alternator and check whether everything matches, including the mounting bolt holes.Remove the old alternator from the bracket.Once the belt is off, unfasten the mounting bolts connecting the alternator to the bracket.
Remove the drive belt from the pulley by loosening the belt tensioner.Disconnect the cable connections from the back of the alternator.Here’s how a professional mechanic would replace a failed alternator: If any readings are out of range while the engine is running, your alternator could be problematic, and you may need a car repair. Load engine: Start turning on accessories (like the headlights, radio, and windshield wipers.) The voltage shouldn’t drop under 12V or go above 14V.With the engine running at around 1000 RPM, the multimeter voltage should stay within 12-14 volts. Alternator assessment: Turn on the engine.A good, fully charged battery should measure between 12.6 -13.2 volts. Battery assessment: With the engine turned off, connect the multimeter leads to the battery terminals - red to the positive terminal, black to the negative terminal.To load test your alternator, you need a voltmeter or multimeter. How Often Do I Need An Alternator Repair?Īn alternator can generally last for about 150,000 miles or 7-8 years before needing replacement. Yes, but only for a short while before the battery fails, then you’ll need an alternator repair. Here are answers to some common questions on alternator repairs: 1. The timing belt tensioner pulley may make a squealing noise from the timing cover area An updated tensioner with a thicker mounting bracket to eliminate vibration may be needed to solve the problem.
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