Expert Auto Electrical Repair & Diagnostics
Car battery keeps dying? Flickering lights? A&R Motors provides expert auto electrical diagnostics, battery, starter, and alternator replacement in North York.
Warning
What you'll notice
Your dashboard lights up with warnings. The battery dies without reason. Lights flicker or fail completely.
The work
What we do to fix it
- Battery Testing & Replacement: We check your battery’s health, cold-cranking amps, and ability to hold a charge, installing high-quality replacements when necessary.
- Alternator Repair & Replacement: If your battery keeps dying while driving, we test the alternator’s voltage output to ensure it is properly charging your system.
- Starter Motor Diagnostics: We troubleshoot starter solenoids and motors to fix that frustrating “clicking” sound when you turn the key.
- Wiring & Harness Repair: We track down and repair damaged, corroded, or chewed wires that cause intermittent electrical failures.
Diagnostics
We test everything that powers your car
- Voltage & Charging Output: Ensuring your alternator is generating enough power to run the car and recharge the battery simultaneously.
- Cold-Cranking Amps (CCA): Testing the battery’s ability to start your engine, which is especially critical before harsh winter weather hits.
- Starter Draw: Measuring how much electricity your starter motor consumes to verify it isn’t worn out or struggling.
- Ground Connections: Checking the main ground wires connected to your engine block and chassis, as poor grounds are the leading cause of random electrical gremlins.
Symptoms
Dashboard warnings that won't go away
- Battery / Charging Light: This red battery icon rarely means a bad battery; it usually means your alternator has stopped charging and your car is about to die.
- Check Engine Light (CEL): Often triggered by failing electrical sensors (like oxygen or mass airflow sensors) or poor wiring connections to the engine’s computer.
- ABS & Traction Control Lights: Usually caused by a broken wheel speed sensor or a damaged wiring harness near the wheels.
- Electronic Power Steering (EPS) Light: Indicates a failure in the electrical motor that helps you steer, making the wheel stiff and hard to turn.
FAQ
No waiting on hold.
How do I know if it’s my battery or my alternator?
If your car won’t start but fires up with jumper cables and stays running, you likely just have a dead or dying battery. However, if you jump-start the car and it dies shortly after you remove the cables, your alternator is likely failing and unable to keep the battery charged. We can test both in minutes to give you a definitive answer.
Why does my car just click when I try to start it?
A rapid clicking sound when you turn the key or push the start button usually means the starter motor isn’t getting enough power to turn over the engine. This is most commonly caused by a weak battery, corroded battery terminals, or a failing starter motor.
My battery keeps dying overnight. Do you fix parasitic drains?
Yes. If your battery keeps dying even though it’s relatively new, a component in your car (like a light, radio, or faulty module) is likely staying on and drawing power when the car is off. We use specialized diagnostic tools to trace the exact circuit causing the parasitic draw and repair the underlying issue.
Can a bad electrical system cause my car to run poorly?
Absolutely. Modern vehicles rely heavily on stable electricity. Your car’s computer, fuel injectors, and ignition system all need a steady voltage. A weak alternator, failing battery, or a bad ground wire can cause rough idling, stalling, poor acceleration, and random warning lights.
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Serving the GTA and surrounding areas.
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