Our Services that We Offer

Lube, Oil and Filter

Warning Signs

  • If your engine won’t start or stalls frequently, the fuel filter could be clogged.
  • An engine that runs poorly at higher speeds could be a sign that the fuel filter may be partially plugged.
  • A smell of mildew inside your vehicle may mean the cabin air filter is clogged.
  • A lack of flow from the air vents could mean the cabin air filter is dirty.
  • Oil that looks dark and dirty means it’s time for an oil and filter change.

Engine Oil

Filter Replacement

Oil Filter

Cabin Air Filter

Lube, Oil and Filter Service

How often should you change your oil and oil filter?

What kind of oil should you be using?

What’s the difference between synthetic and conventional oils?


Warning Signs

  • Your car pulls to one side when braking.
  • You hear squealing or grinding noises.
  • Your brake pedal pulsates up and down when pressed.
  • Your brake pedal feels spongy.
  • You have to press your brake pedal almost to the floor.
  • Your brake warning light is on.
  • Your brake pedal is low or hard to push.
  • You need to frequently add brake fluid.

Braking Systems

Brake Pads and Shoes

Brake Calipers (Disc Brakes)

Brake Fluid

Brake Hardware

Brake Hoses and Steel Lines

Brake Hydraulics

ABS Brakes


Warning Signs

  • If your tires squeal when cornering your tire pressure may be low.
  • Excessive wear in the centre of a tire may indicate that it is over inflated.
  • If your vehicle handles poorly or gives you a rough ride it may be that your tires are over inflated.
  • Tread wear on the outside edges suggests that your tire is under inflated. Under inflation contributes to poor handling, reduced fuel economy and possible failure.
  • When you see a narrow rubber stripe (Wear Bar) running across your tires it indicates your tire has reached a point that, by law, it must be replaced.

Tire Types

Tire Tips

Winter Tires

Performance Tires

Types of Performance Tires

Mufflers & Exhaust

Warning Signs

  • If you hear rattling sounds the most common cause is loose clamps or brackets. Loose clamps and brackets can be tightened but any corroded elements must be replaced.
  • If your vehicle sounds louder than normal or you hear a ticking sound when accelerating it may indicate an exhaust leak due to corrosion.
  • If your check engine or service engine light comes on it may indicate a faulty or failing catalytic converter.
  • The smell of rotten eggs or burning could indicate a problem with the catalytic converter.
  • The smell of exhaust fumes may indicate an exhaust leak that can be potential dangerous to you as carbon monoxide may seep into the vehicle.

Exhaust System Components


If you’ve ever heard a car running without a muffler, you know what a huge difference a muffler makes to the noise level. Inside a muffler, you’ll find a deceptively simple set of tubes with holes in them. These tubes and chambers are as finely tuned as a musical instrument. They are designed to reflect the sound waves produced by the engine in such a way that they partially cancel themselves out.


Some vehicles have a resonator, which in combination with the muffler further reduces the sound that is produced by your engine. It looks similar to a muffler and contains a specific volume of air and exact length for your vehicle to help cancel out certain frequencies of sound in the exhaust.

Catalytic Converter

The catalytic converter closely resembles a muffler in appearance but its primary function is to reduce the harmful emissions in a vehicles exhaust. It changes carbon monoxide, hydrocarbons and oxides of nitrogen into harmless carbon dioxides, nitrogen, oxygen and water. The catalytic converter achieves optimum performance at between 450 and 800 degrees Celsius and when fully warmed up contributes to better fuel economy and cleaner exhaust.

Oxygen Sensor

The oxygen sensor is positioned in the exhaust pipe and the goal of the sensor is to help the engine run efficiently and produce as few emissions as possible. It monitors the amount of oxygen found in the exhaust gases and communicates to information to the engine’s computer. The computer then adjusts the mixture to ensure the cleanest combustion possible.

Replacement Mufflers

Boss Auto Service carries the Walker SoundFX aluminized direct-fit mufflers. SoundFX mufflers are constructed from fully aluminized materials and come with a LIFETIME warranty.

For the budget conscious Boss Auto Sales also carries the Pro-Fit line of mufflers from Walker that feature aluminized steel covers and they come with a 1-year warranty.

Performance Mufflers

A conventional muffler produces backpressure because of all the holes, chambers and turns the exhaust has to go through. This backpressure robs the engine of some of its power.

A performance muffler, on the other hand, allows the exhaust to go straight through, thereby reducing the backpressure, which increases your engines performance. This type of muffler does not reduce the sound as much as conventional mufflers.

Dynomax has it all… sound, performance and durability.

Dynomax performance exhaust products are engineered and built by the world’s largest supplier of exhaust systems. Dynomax offers the widest selection of performance mufflers on the market today, with a muffler for every performance application.

UltraFlo SS Performance Muffler has a T304 polished stainless steel case with a 409 stainless steel internal construction featuring a straight through design for maximum flow and power. The continuous high temperature roving fiberglass technology delivers a deep, powerful and true performance sound. The Ultra Flo SS performance muffler is also reversible for versatile installation and comes with a LIFETIME warranty.

*The “Safe & Sound” guarantee. If for any reason the product does not live up to your expectation replace your UltraFlo SS muffler within 90 days and Boss Auto Service will refund the mufflers original purchase price. Certain restrictions apply see your Boss Auto Service specialist for all the details.

UltraFlo Welded Performance Muffler is a 100% welded construction for maximum durability. It is constructed of 100% aluminized materials and features a straight through design for maximum flow and power. The continuous high temperature roving fiberglass technology delivers an aggressive, powerful and deep performance sound. The Ultra Flo welded performance muffler is also reversible for versatile installation and comes with a LIFETIME warranty.

Super Turbo Performance Muffler 3-pass design and patented flow directors improve flow and reduces backpressure. It is constructed of 100% aluminized materials and its’ fiberglass matting delivers a mellow and true performance sound. The Super Turbo welded performance muffler is also reversible for versatile installation and it comes with a lifetime warranty.[/fusion_old_tab]

Engine Service

You’re driving along and suddenly your check engine light goes on. What does it mean? Your vehicle’s engine light is part of an intricate monitoring system and it could come on for a variety of reasons. At Boss Auto Service we have the latest diagnostic equipment that lets us pinpoint the problem and get you on your way again.

Warning Signs

If your vehicle is stalling frequently, visit one of Boss Auto Service car repair centres where our licensed technicians can identify what’s causing this problem and offer an affordable, effective solution. Stalling in an automatic vehicle can be caused by quite a number of things, such as:

  • Low fuel pressure
  • Worn spark plugs
  • Clogged air filter
  • Faulty wiring
  • Seal leaks


An overheated engine can be a serious and startling problem – steam billowing from under the hood, the temperature gauge in the red or a red light on, strange sounds coming from the engine. Overheating can cause damage to the cooling system, radiator, piston rings, water pump, as well as the transmission and engine itself, and is an issue that needs immediate attention. Boss Auto Service’s car repair technicians know the various causes of overheating – coolant leak, slipped fan belt, radiator clogged, thermostat malfunction or failed head gasket, among others – and can solve this and other vehicle problems efficiently and affordably at one of our convenient car repair locations.

If your car’s engine is stalling or overheating, don’t try to guess the problem. Have one of our skilled car repair technicians examine your vehicle, identify the problem, repair your car and get you back on the road safely.


Maintaining a vehicle costs a little. Repairing it can cost a lot. You can save money by preventing trouble before it happens with regular tune ups. At Boss Auto Service we’ll help keep your vehicle running at its best and keep it running longer.

We make tune-ups as easy as 1, 2, 3

  • Check that wiring is in good shape and that there are no loose connections.
  • Check air, fuel and oil filters to help prevent overheating, stalling, and unnecessary engine wear.
  • Check spark plugs to inspect for excessive wear and proper gapping.

Sometimes it takes a mechanical inspection to discover that auto components are wearing out. If neglected, this can lead to inconvenient and expensive problems down the road. Tune ups ensure that minor issues are dealt with before they become major problems requiring costly repairs. Our skilled technicians will thoroughly inspect your vehicle, including the following:

  • Exhaust System
  • Brakes
  • Suspension
  • Steering
  • Emission System
  • Ignition Timing
  • Battery and Charging System
  • Spark Plugs
  • Belts and Hoses
  • Lights and Turn Signals
  • Filters
  • Radiator and Coolant
  • Tires (Pressure and Tread Depth)
  • Chassis, Ball Joints, Control Arms and Constant-Velocity (CV) Boots
  • Visual Inspection of Engine

The old saying is true: an ounce of prevention is worth a pound of cure. Prevent car trouble and extend the life of your vehicle with a tune up at Boss Auto Service.[/fusion_old_tab]

Heating and Cooling

Driving produces an enormous amount of heat – enough to cause serious damage to your engine. That’s why a properly maintained cooling system is so essential to prevent your engine from overheating or, even worse, seizing up. At Boss Auto Service we’ll inspect your cooling system to spot potential problems before they start.

Cooling System Warning Signs

  • Dashboard temperature gauge rises when idling or moving slowly
  • Dashboard light indicates low coolant
  • Frequent need to add more coolant
  • Scent of antifreeze inside vehicle
  • Coloured liquid under the front of the vehicle
  • Steam rising from under the hood
  • Coolant in exhaust
  • Discoloured coolant

Air Conditioning Warning Signs

  • Blowing hot air into your vehicle
  • Air is not blowing into your vehicle’s cabin
  • Smell of anitfreeze from your vehicle’s vents

The Cooling System – More Than Just AntiFreeze

The cooling system works by circulating liquid coolant (typically a mixture of water and propylene glycol antifreeze) through the engine to pick up heat, and then into the radiator to cool back down. A water pump circulates the coolant and a thermostat controls its temperature as it moves through a series of interconnected hoses from engine to radiator to heater and back.

Air Conditioning System

Your vehicle’s Air Conditioning System relies on three key components: the compressor, condensor and evaporator. These components work in concert to ciruclate refridgerent (in the form of gas) and regulate the temperature of your vehicle’s cabin.

Your vehicle’ cooling system and A/C System needs to be kept in good shape to protect the engine and other components. Have a technician inspect and, if necessary, repair your vehicle’s cooling system.[/fusion_old_tab]

Steering & Suspension

A suspension wears out gradually and you may not notice any problems until the system fails. So, it’s important to have your suspension system checked periodically to ensure your driving comfort and safety, especially if your vehicle has been driven 80,000 km or more. From shock absorbers to strut replacement you can count on a technician to provide the best solution to suit your driving needs and budget.

Steering Warning Signs

  • If your car is hard to steer, the steering linkage may need lubrication or repair, or there may be a problem with the power steering unit.
  • If the steering feels loose steering linkage parts may be worn.
  • A vehicle pulling to one side indicates worn steering or linkage parts, improperly inflated tires, wheels out of alignment or that brakes are dragging.
  • If the steering wheel jerks it could be a loose steering belt, low power steering fluid or a problem with the steering pump.
  • A vibrating steering wheel could mean the tires need balancing or steering parts are worn.

Steering System

The steering system consists of a series of linkages and gears that connect the driver to the wheels. There are two types of steering systems, parallelogram and rack-and-pinion.

Today most vehicles have some degree of power assistance, which consists of a fluid reservoir and pump run by a belt.

The parallelogram steering system consists of a steering gearbox, pitman arm, relay arm and inner and outer tie rod-ends. The rack-and-pinion system differs from parallelogram as it eliminates the pitman arm, relay rod and idler arm.

If your vehicle is hard to steer, there is a vibration or a jerking sensation in the steering wheel a Boss Auto Service specialist can help explain. One of our trained technicians will inspect your steering system and show you what’s right and what’s wrong.

Suspension Warning Signs

  • Does your car continue to bounce after you hit a bump or when you stop quickly?
  • Does your car dip when you brake?
  • Does your car lean or roll to one side when you corner?
  • Are your tires wearing faster than normal or unevenly?
  • Does your steering wheel vibrate when you hit a bump?
  • Do you hear rattling or thumping sounds from any of your wheels when you hit a bump?

Suspension System

Your suspension system provides steering stability and maximizes yours and your passenger comfort. Worn suspension components may reduce stability of the vehicle and driver control as well as accelerate wear on other suspension components and tires.

Your suspension system performs six basic functions that allow you to steer:

  • Maintain correct vehicle height
  • Reduce the effects of bumps for a more comfortable ride
  • Maintain correct wheel alignment to lessen tire wear
  • Support vehicle weight
  • Keep tires in contact with the road for stability, braking and control
  • Control the vehicle’s direction when moving


Shock absorbers are usually used on cars and light trucks with standard suspension systems. Shock absorbers provide resistance by forcing hydraulic fluid through valves in the piston as it moves up and down which dampen movement of the vehicles springs as they compress and rebound during vehicle travel. The amount of resistance depends on how fast the suspension moves. Without shock absorbers your vehicle would continually bounce, making it difficult to control.

Shock absorbers not only give you a comfortable ride but they help ensure all four tires stay in contact with the road for better stability and control. You should have your shock absorbers checked, by a licensed technician, if they have been driven 80,000 kilometers or more.


Unlike shock absorbers, struts are a major structural part of the suspension. Struts perform two main jobs. First, they act like a shock absorber to dampen the movement of the springs as they compress and rebound. Secondly struts provide structural support for the vehicles suspension, support the spring and hold the tire in an aligned position.

Struts affect riding comfort and handling as well as vehicle control, braking, steering, wheel alignment and tire wear. It is recommended that you have your struts checked by a licensed technician if they have been driven 80,000 kilometers or more.

Money Saving Tip: When having your suspension serviced it’s a good idea to have the “bearing / mounting plate”, and mounting bolts inspected along with other parts that are designed to protect the strut / shock such as the “jounce bumper” and “dust boot”. You’ll not only be saving yourself from paying for the same labour charges again, but you will also be protecting the investment you made in new parts.


The springs support the weight of the vehicle, maintain ride height and absorb road shock caused by bumps or dips in the road. The coil spring is the most common and may be used at both the front and rear of the vehicle. The leaf spring is made of several steel plates of different lengths and is commonly used at the rear of the vehicle.

Ride height measurements not within manufacturer’s specifications require the replacement of springs. It is important that you replace the springs as they can accelerate tire wear, cause handling problems and wear other suspension components.[/fusion_old_tab]


Transmission problems can be caused by low fluid levels, poor fluid consistency, or by debris in the system and a transmission is one of the most costly components to repair or replace. At Boss Auto Service we can show how to you detect transmission problems early on so we can correct any minor problem before it causes costly damage.

Warning Signs

  • Delay or refusal to shift into gear
  • Burning odour
  • Grinding or shaking when shifting into gear
  • Whining or clunking noises
  • Fluid leakage under vehicle
  • Check Engine light on

Proper Maintenance Prevents Expensive Repairs

  • Have your Boss Auto Service technician check and change transmission fluid in accordance with the maintenance schedule recommended by your car’s manufacturer. Low or dirty fluid increases wear on components, and over time the fluid becomes contaminated. The proper amount of clean fluid extends the life of your transmission.
  • Change filters regularly. A dirty or clogged filter will restrict the flow of fluid and can cause erratic shifting, damaging components.
  • Watch for fluid leaks. If you see reddish transmission fluid beneath your car, you may have a leak somewhere. Ignoring it could seriously damage your transmission.
  • If you have a manual transmission, get to know your clutch’s “feel”. If you detect a change, such as shuddering or less resistance, contact Boss Auto Service transmission specialists for an inspection to identify and resolve the issue.
  • Check your owner’s manual to find out how often you should have a transmission service inspection. Boss Auto Service transmission service professionals can help you keep your car’s transmission system – manual or automatic – in the best shape possible.

Transmission Fluid Flush

If you want to know why a transmission fluid flush is useful, it’s important to know what transmission fluid is and does. Automatic transmission fluid (ATF) is a complex type of oil used to ensure the safe and proper functioning of the transmission system. It lubricates gears and other moving parts, inhibits rust, and contains anti-oxidation and anti-wear additives, detergents and other performance-enhancing additives. It is also a coolant that keeps your vehicle’s vital transmission functioning properly. Since it must be clean to do this, it’s important to schedule regular transmission fluid flushes.

Manual transmissions use a different type of oil to lubricate the gears, but one that also protects against oxidation and corrosion. The best type for your manual transmission varies depending on your vehicle’s manufacturer, so check your owner’s manual for the appropriate type to use in a transmission fluid flush.

Transmission fluid breaks down over time and can damage your transmission. A proper transmission fluid flush removes all the old fluid instead of simply topping up the dirty, contaminated fluid. To keep your transmission clean and functioning at its best, have a transmission fluid flush performed by a licensed technician at regular intervals.

Manufacturers typically recommend a transmission fluid flush every 50,000 kilometers or so in order to prolong the life of your transmission. Don’t wait until the fluid has turned dark or your shifting is erratic; by then your transmission could be damaged.[/fusion_old_tab]

Batteries And Electrical

Did you know that summer heat greatly reduces battery life? You may not notice until winter when your battery is called upon to deliver more power to start the engine. Come into your neighbourhood Boss Auto Service for a 7-point battery inspection before your battery leaves you out in the cold.

Warning Signs

  • The battery light comes on.
  • The alternator is making a noise.
  • The starter motor turns the engine slowly or unevenly.
  • You hear a clicking or chattering noise when you turn on the ignition.


The battery in your car supplies electricity to your vehicle, powering the starter, ignition, lights, stereo, and other components. As you drive, the car’s alternator uses the engine’s power to recharge the battery. Since the average battery lasts approximately four years, you will need to replace your battery at some point. Boss Auto Service can help.

Boss Auto Service technicians will check the power specifications, particularly the Cold Cranking Amps rating (CCA) and Reserve Capacity (RC), and make sure your battery has the correct ratings for your vehicle. The CCA refers to the battery’s capacity for starting your engine in colder temperatures – essential for the Canadian winter. The RC rating refers to the battery’s Reserve Capacity – the time in minutes that the battery will power essential car functions if the alternator or charging system fails.

Your vehicle’s electrical system is always on as the battery continues to run the computers that operate the vehicle so they retain their settings. These use little power and under normal circumstances will not drain the battery.


Like all batteries your car battery would eventually go dead without a built-in recharging system. The recharging system consists of the alternator, alternator drive belt, the battery, the voltage regulator, main fuses, charge indicator, cables and wiring harness.

A battery stores about enough power to get your vehicle started. After that, it’s up to the alternator to re-charge the battery and create enough electricity to power your vehicle’s electrical components. If you notice that your vehicle’s electronics are not working properly, take your vehicle to Boss Auto Service as soon as possible. This will avoid futher complications, as you may be unable to re-start the vehicle.[/fusion_old_tab][/fusion_old_tabs]

Why Choose Us

      • We will repair only what is necessary
      • We have the latest state-of-the-art equipment
      • We are fair and affordable
      • We have over 30 years of experience
      • 100% customer satisfaction.

What Client’s Say

A semi-synthetic oil change for $30 bucks, I have no idea how I could go wrong. It wasn’t the cheap recycled stuff the other guys use either. I am impressed. Thanks again!
Leo M., Oshawa
I don’t know too much about vehicles but I trusted the technicians. The clunking is gone and it was fixed for so much less than I expected.
Meriana H., Whitby
I had my transmission rebuilt for less than $1500 after getting quotes from almost double! I gave this testimonial because these guys are a rare find! People need to know how amazing their service and prices are! It’s ridiculous.
Jenna C., Courtice