How to Check a Car Engine When Buying a Used Car

Buying a used car can be a great way to save money. However, it's crucial to ensure the car's engine is in good condition to avoid unforeseen repairs and costs. Below is a guide on how to check a car engine when buying a used vehicle.

1. Visual Inspection

Start by visually inspecting the engine. Here are some things to look for:

• Cleanliness: While a clean engine can indicate good maintenance, be cautious if it looks excessively clean, as it may have been washed to conceal problems.
• Leaks: Check for oil, coolant, or any other fluid leaks around the engine. Leaks can indicate poor maintenance or potential mechanical issues.
• Belts and Hoses: Examine the belts and hoses for cracks or signs of wear. These components are critical for engine function and should be in good condition.

2. Fluid Levels and Condition

Checking the fluid levels and their condition can provide insight into how well the car has been maintained:

• Oil Level and Condition: Use the dipstick to check the oil level. Ensure it's within the recommended range and observe the oil colour and consistency. It should be amber or brown, not black or gritty.
• Coolant: Check the coolant level in the reservoir tank. A low coolant level or inconsistent colour indicates potential problems such as a leak or contamination.
• Transmission Fluid: The transmission fluid should be checked with the engine running in park. It should be pinkish and have a somewhat sweet smell.
• Brake Fluid and Power Steering Fluid: Ensure these are at appropriate levels and clean.

3. Check for Warning Lights

Before test driving, turn on the ignition and look at the dashboard lights. Make sure:

• All warning lights come on and then go off after a few seconds. Persistent lights, such as the Check Engine light, require further investigation.
• No unusual lights remain on, as they could indicate underlying electronic or sensor-related issues.

4. Listen for Unusual Noises

Start the engine and listen carefully for any unusual noises:

• Knocking or Tapping: This can signal worn engine internals like pistons or rods.
• Squealing: Often due to worn-out belts or idler pulleys needing replacement.
• Rattling: Can indicate loose components such as exhaust systems or chain-driven components needing attention.

5. Conduct a Test Drive

Driving the car will help assess the engine's performance under load:

• Ensure the car accelerates smoothly without hesitation.
• Watch for excessive smoke from the exhaust, which may indicate burning oil or coolant issues.
• Listen for any additional noises or vibrations that become apparent only when the car is moving.

6. Get a Vehicle History Report

Using our online service you can obtain a complete vehcle history report giving you data on Tax and MOT status, mileage checks, valuation check and police stolen check to name a few!

7. Professional Inspection

If possible, have a trusted mechanic inspect the car. They have the expertise and tools to identify issues you might have missed.

Conclusion

Performing a thorough engine inspection helps safeguard against purchasing a used car with hidden issues. Following these guidelines can provide peace of mind, but a professional mechanic’s opinion is invaluable. Happy car hunting!