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under the car

Preventive Maintenance for Cars and Trucks in Cambridge

At Gary Dunn Personal Auto Service, we want to help you keep your vehicle running as efficiently as possible. We understand that owning a car or truck is a major investment. Whether your car gets you around town or is part of your fleet, routine maintenance will not only protect your investment but ensure the safe operation of your vehicle. Let us help you with you with all of your routine vehicle maintenance needs. Save yourself from costly repairs or an inconvenient breakdown. Call us today to schedule an appointment.

Vehicle Components that Require Maintenance

Cars and trucks have become increasingly more complex. Having basic understanding of your car's systems and components are key to protecting your investment. These are the systems and components that require routine care.


Having your brakes inspected regularly is important for the safety of your vehicle. If you notice that your steering wheel is shaking or vibrating at high speeds or making squeaking noises, these are signs that your brakes are in need of repair. At Gary Dunn Personal Auto Service, we use Wagner® brake parts which come with a lifetime warranty.

Cooling System

Low fluid or clogged cooling system could impact your engine causing it to wear prematurely. Problems that are not addressed right away may result in expensive breakdowns. Making certain that the coolant is at the optimum level is vital to your engine's performance.

Emission Control System

If your check engine light is on, it is letting you know that your emission system may need attention. If your car’s emission system is not functioning properly, you may notice that your car is using more fuel. Making sure the emissions controls are functioning correctly will save you from expensive engine repair or replacement.


Air filters allow your engine to breathe. If the air filter is dirty or clogged, it could lead to poor fuel economy and make your engine work harder than necessary. Many cars and trucks are equipped with a cabin filter which controls the air quality inside your vehicle. Have your filters inspected and changed as necessary. Check your owners’ manual for guidelines.

Tires and Suspension

Inspect your tires regularly for wear and see that they are filled properly. Making sure your tires are inflated properly ensures safe driving and life of the tire. Your car's suspension system impacts your steering, braking and stability. It is important to have these parts inspected regularly and to replace worn shocks and struts when necessary.

Spark Plugs and Ignition System

Spark plugs that are worn could result in your engine performing poorly and can lead to costly repair. Check your owners’ manual for recommendations specific to your vehicle. Over time, ignition wires can degrade and lose insulation. We can inspect your vehicle's spark plugs and ignition system to make sure it is working properly.


Your transmission works with your engine's controls to ensure proper operation of your car. We offer diagnostic testing and repair for your vehicle. Periodic inspection of your transmission helps to catch smaller repairs before they lead to a more expensive repair.

Windshield Wipers

Windshield wipers that need to be replaced can hinder visibility in bad weather. Inspect your wiper blades for cracking and wear and replace them when necessary.


Belts keep your alternator, water pump and air conditioning systems running properly. We can inspect your belts to make certain you avoid costly repairs in the future.


Extreme weather can be hard your car battery. Have your battery and charging system checked to be certain that it is working properly.

Vehicle Services

  • Tire Rotation and Balancing

  • Alternators and Starters

  • Timing Belt Replacement

  • Fuel Systems

  • Pre-Purchase Vehicle Inspections for Used Cars

  • Transmission Service and Repair

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