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Battery, Alternator and Starter Replacement

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What Is A Battery, Alternator and Starter Replacement?

Nothing is more irritating than a dead car. If your car doesn’t run, there’s usually a fault with the battery, the alternator or the starter. But how do you know which part of it is causing your problem? Both of these parts work together to control the engine, but it can be hard to know which component is at fault. 


The safest place to begin your investigation is the battery. Batteries have a lifespan of 3-5 years, and will eventually discharge once its reached its end time. The simplest and inexpensive of the three pieces to repair, your engine will not work properly without a fully charged battery. Keep on the lookout for the signs of a defective battery.


A vital component of the vehicle’s charging system, the alternator can charge the battery while the motor is running and control the electrical system as well. The alternator generally lasts 8-12 years, but it’s not something that has to be replaced as much as other components. If the alternator dies, the battery will lose its power and the alternator will not be able to hold it charged.

Accountable for starting the engine as you turn the key or click the start button, the starter derives its power from the battery. It takes the energy to turn the engine over and start the car. Simple terms, without a correctly working engine, you’re not going anywhere.

    When Should You Get A Battery, Alternator and Starter Replacement?

    Few Signs of a Bad Battery

    • No go – car won’t crank or start and the lights won’t turn on
    • Close but still no go – engine cranks but not start
    • Whining noises
    • Excessive jumpstarting


    Few Signs of a Bad Alternator

    • ALT light switches on – may be flickering at the point.
    • Headlights and lights on the dashboard go dark
    • Foul scent – like that of burning rubber – this is the belt that gets damaged 
    • Weird noise – the alternator might create a grinding noise when it’s about to break down
    • Engines are having a starting challenge


    Few Signs of a Bad Starter

    • Weird sound – with the start key, a clicking sound suggests a starter error
    • The car doesn’t start – the lights on the dashboard turn on, but the car doesn’t start
    • The engine would not start even after the jumpstart

    Your #1 Choice For On Demand Car Repair In Downtown Toronto

    Google Reviews

    Tariq Alvi
    Tariq Alvi
    2023-01-18
    George did a very thorough job of inspecting a used vehicle before sale and explaining what he found. A real pro!
    Phil Vasil
    Phil Vasil
    2023-01-11
    Timely response and helpful service for diagnosing issue with my car. Friendly, knowledgeable service staff. Would recommend
    Moe Caruso
    Moe Caruso
    2022-11-22
    I would like to thank George from Toronto Mobile Mechanics for working on my car and also my wife's car. We set up an appointment ahead of time and also got a reminder text for my scheduled appointment. Good honest respectful mechanic -- will definitely call them again !!!!
    Natalie Bautista
    Natalie Bautista
    2022-11-16
    I've been a regular using TMM for a couple years now and they've never let me down. Very knowledgeable mechanics! Quick and efficient!!
    Stanley Szczepanski
    Stanley Szczepanski
    2022-11-15
    I used Toronto Mobile Mechanics to change my brakes and I have to say George was amazing! He was prompt, professional and very knowledgeable. I highly recommend using their services!!
    Adeva Brown
    Adeva Brown
    2022-09-08
    George was great. He was quick and efficient! Greatly appreciated. Thank you. Will definitely be using their services again.

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