Services at John O’Leary Auto’s

Auto-Electrical Diagnostics

Electrical problems can be frustrating and inconvenient. Anything from a dead battery, to windows not working or a short in a circuit, our highly skilled staff are trained and equipped to handle the job properly and efficiently. We have the highest quality equipment and diagnostics technology to handle all your electrical problems.


Pre NCT Test

nct_testShould your car be due an NCT test in the near future, why not book it in for a Pre-NCT check. We are equipped with all the necessary vehicle testing equipment to ensure your car will be ready to pass the test! Our equipment is calibrated and maintained to the highest standards to ensure our customers receive the best possible outcome.


Our pre-NCT check includes:

⦁ Full NCT Inspection i.e tyres, body damage etc.
⦁ Brakes Performance and Balance
⦁ Emission testing
⦁ Shock testing
⦁ Light Focussing


Timing Belt

Certain engines with overhead camshafts have timing belts that have a limited life span. Car manufacturers use these belts instead of more durable chains because chains are noisier and cost more to manufacture. Your vehicle owner’s manual will recommend at what mileage the timing belt must be replaced as intervals range differently in all vehicles.

beltThe job of the timing belt is to turn the camshaft(s) at exactly 1/2 the speed of the crankshaft while maintaining a precise alignment. This means that the crankshaft will make two revolutions for every revolution of the camshaft. Engines will have at least one camshaft, or as many as four camshafts in some of the V-type engines. The camshaft causes the intake and exhaust valves to open and close in time with the pistons which move up and down in the cylinders. The valves must open and close at exactly the right time in relationship to the piston movement in order for the engine to run properly.



Brakes & Suspension

ghvgSometimes, your vehicle’s brakes will alert you when there’s trouble. Whistling noises, chirping sounds, and grinding are indications that maintenance is required. Vehicles often come equipped with a small thin piece of metal attached to the brake pad to act as a warning indicator when the pad material is getting low and the brake pads should be replaced.

This device makes a chirping noise on brake application, letting you know it is time to have your brakes serviced.

When your brake pads are fitted they will be extra sensitive so take extra care for the first few miles to keep a safe distance between you and the vehicle in front of you and to brake in plenty of time.

Your vehicle’s suspension system is effectively a complex series of components designed to work together to limit the vibrations and undulations from the road surface, providing a smooth, controlled and comfortable driving experience. Great brakes and tyres need to be in full contact with the road to work most effectively. In fact, at 30mph, worn shock absorbers can add up to 2 metres to your braking distance!


Suspension System services include:

  • Air Ride Systems
  • Ball Joints
  • Coil Springs
  • Control Amps
  • Driving Axles
  • Diagnostics of your Suspension System
  • Front End Services – 4 Wheel Alignment, Wheels Aligned & Balanced, Shocks, Struts & CV Joints
  • King Pins
  • Lifting and Lowering
  • Performance Shocks and Struts
  • Shocks/Struts
  • Steering Racks
  • Suspension – Custom made suspension systems repaired or installed


Clutch & Gearbox

The clutch plates inside your car are kept together by springs when you are driving. They separate when you press down on the pedal, to enable the gears within the car to be changed. Over time this regular, repetitive action eventually wears the clutch down, and it will need replacing.