![]() If the gauge shows fuel in the tank and yet the car’s choking, you have a failing fuel pump. If the engine is choking or struggling to maintain speed, you may think you’re out of gas. If the engine isn’t getting adequate fuel, it won’t have the proper air-fuel ratio in the combustion chamber - leading to inefficient combustion. Many things can cause misfiring, including a malfunctioning fuel pump. So don’t ignore a fuel pump replacement! 4. Ignore the issue, and eventually, your car simply won’t start. ![]() Start-up may take a few seconds longer than usual, or you’ll need a few attempts to get the engine cranked. If the fuel pump can no longer supply the required fuel to the engine, your car will experience starting difficulties. In any of these cases, you may need a new fuel tank pump. A less noticeable fuel pump issue can be a decrease in gas mileage. Also, if the fuel delivery issue is erratic, you might experience surging or sputtering. There could be a loss of power if your car’s fuel pump can’t provide the engine with sufficient fuel. Note : Any of these sound issues may trigger the check engine light on the dashboard. In general, any weird sound from your car is never good, so always pay attention. Backfires and sputtering engines can also suggest a broken fuel pump. Whining from the fuel tank can indicate a dying pump. ![]() Using the new alternator to charge a low volt battery can damage the alternator.Here are some bad fuel pump indicators demanding a fuel pump replacement: 1. Tips: Ensure the battery is fully charged before installation. Review the installation and test the alternator output using a multimeter.Slip the drive belt back in position by using the tensioner arm and reinstall all cable connections.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.
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