7 Common Engine Problems and How to Prevent Them

Maintaining a smoothly running engine is vital for achieving peak performance, maximizing fuel efficiency, and ensuring safety. Our roadworthy certificate center goes beyond issuing compliance certificates; we conduct detailed diagnostics to detect early signs of engine problems. Regular maintenance, along with car professional repair services, keeps your vehicle dependable and extends its operational life. In this post, we will highlight seven prevalent engine problems and provide useful tips to avert them, enabling you to prevent costly breakdowns and keep your car in prime condition.

1. Engine Overheating

Symptoms: Increasing temperature reading, steam escaping from beneath the hood, and the heater emitting cold air.

Causes: Insufficient coolant, malfunctioning thermostat, obstructed radiator, and problems with the water pump.

Prevention:

  • Monitor the coolant level on a monthly basis and replenish it with the appropriate antifreeze mixture.
  • Examine hoses and belts for signs of wear; replace any that are brittle or have cracks.
  • Every two years, flush the cooling system to eliminate debris and avoid potential blockages.
  • Arrange for annual radiator pressure tests to identify leaks at an early stage.

2. Oil Sludge and Contamination

Symptoms: Noises such as knocking, oil warning lights, and irregular idling.

Causes: Delayed oil changes, low-quality oil, and short journeys that do not sufficiently warm up the engine.

Prevention:

  • Replace the engine oil and filter as per the intervals suggested by the manufacturer.
  • Utilize high-quality oil that meets vehicle specifications to prevent degradation from heat.
  • Occasionally mix short trips with highway driving to eliminate moisture buildup.
  • During each service, check beneath the oil filler cap for any thick, dark deposits.

3. Low Oil Pressure

Symptoms: Indicators such as the oil pressure warning light, engine ticking or knocking sounds, and a drop in power can signal problems.

Causes: Possible causes include oil leaks, a clogged oil filter, a deteriorated oil pump, or oil that has degraded in viscosity.

Prevention:

  • Consistently inspect for any oil leaks around gaskets and seals.
  • Timely replacement of oil and filters is essential; refrain from prolonged intervals that can lead to sludge buildup.
  • Utilize the appropriate oil grade to ensure optimal viscosity.
  • During each service, assess oil pressure and flow to detect pump wear early—combined with our professional car repair services, this helps avert significant engine damage.

4. Engine Misfires and Rough Idling

Symptoms: Experiencing shaking during idle, a decrease in acceleration, and the engine warning light appearing on the dashboard.
Causes: Possible issues may involve faulty spark plugs, obstructed fuel injectors, ignition coil failures, or vacuum leaks.
Prevention: 

  • Replace spark plugs at intervals of 30,000 to 60,000 kilometers, depending on the specific type and usage patterns.
  • To maintain proper airflow, regularly clean or replace air filters.
  • Occasionally utilize fuel injector cleaner additives to eliminate deposits.
  • Our all-encompassing service not only covers engine problems repairs but also includes windscreen replacement and other bodywork services, ensuring a convenient one-stop solution.

5. Timing Belt or Chain Failure

Symptoms: The engine does not start and emits loud slapping or rattling noises, with oil leaking in the vicinity of the timing cover.
Causes: This could be attributed to a worn belt or chain, misalignment, or a defective tensioner.
Prevention:

  • It is essential to adhere to the specified replacement intervals, which are generally between 100,000 and 160,000 kilometers.
  • Make sure to inspect the tensioners and pulleys for proper operation at every service appointment.
  • A trip to a reliable roadworthy certification facility can help ensure that your drivebelt system meets safety requirements, preventing potential engine failure.

6. Coolant Leaks and Corrosion

Symptoms: Puddles under car, overheating, low coolant warning, rusty coolant reservoir.
Causes: Damaged radiator or hoses, corroded heater core, failed water pump gasket.
Prevention:

  • Conduct visual checks on hoses, radiator fins, and clamps during each oil change.
  • Replace any old or brittle hoses to prevent cracking.
  • Utilize manufacturer-recommended coolant to reduce the risk of corrosion.
  • If you spot a chip in your windshield, take immediate action—our windshield replacement service employs advanced resins to restore strength and clarity.

7. Dirty or Clogged Air Filter

Symptoms: Reduced acceleration, poor fuel economy, black exhaust smoke.
Causes: Accumulation of dust, pollen, and debris in the intake system.
Prevention:

  • Replace the air filter every 15,000 km, or more frequently if operating in dusty conditions.
  • Examine the filter housing for any signs of nesting insects or debris that may evade the filter.
  • For added advantages to both engine performance and passenger comfort, consider synchronizing air filter changes with cabin air filter replacements.

Conclusion

Preventive maintenance is essential for ensuring your engine remains in optimal condition. By monitoring factors such as overheating, oil pressure, misfires, timing components, coolant quality, and air filtration, you can prevent unforeseen failures and costly repairs. Our car repair services team is equipped to assist you, whether you require a standard inspection or advanced diagnostics. Stop by our roadworthy certificates center for comprehensive evaluations, or schedule a service appointment online. With our expert advice and prompt actions at the roadworthy certificates center, your engine will operate more efficiently, sustainably, and reliably—ensuring your safety on every trip.

Call Us Now