How to Check a Car for Original Engine

1. Check the Vehicle Identification Number (VIN)

The VIN is a 17-digit code that can be found on the driver’s side door jamb, the dashboard, and the engine block. The VIN contains information about the car’s make, model, year, and assembly plant. You can use the VIN to decode the car’s original engine specifications.

2. Inspect the Engine Block

The engine block is the main component of the engine. It contains the cylinders, pistons, and crankshaft. You can inspect the engine block for any signs of tampering or replacement. Look for any welds, cracks, or other damage. The original engine block will typically have the manufacturer’s logo and casting number stamped on it.

3. Check the Cylinder Heads

The cylinder heads are located on top of the engine block. They contain the valves and spark plugs. You can inspect the cylinder heads for any signs of tampering or replacement. Look for any welds, cracks, or other damage. The original cylinder heads will typically have the manufacturer’s logo and casting number stamped on them.

4. Inspect the Oil Pan

The oil pan is located at the bottom of the engine. It contains the oil that lubricates the engine. You can inspect the oil pan for any signs of tampering or replacement. Look for any welds, cracks, or other damage. The original oil pan will typically have the manufacturer’s logo and casting number stamped on it.

5. Check the Engine Mounts

The engine mounts are located between the engine and the frame of the car. They support the engine and prevent it from moving around. You can inspect the engine mounts for any signs of wear or damage. The original engine mounts will typically have the manufacturer’s logo and casting number stamped on them.

6. Check the Engine Wiring Harness

The engine wiring harness is a bundle of wires that connects the engine to the rest of the car’s electrical system. You can inspect the engine wiring harness for any signs of tampering or replacement. Look for any cuts, splices, or other damage. The original engine wiring harness will typically have the manufacturer’s logo and part number printed on it.

7. Check the Engine Computer

The engine computer is a computer that controls the engine’s operation. It is located in the engine bay or under the dashboard. You can inspect the engine computer for any signs of tampering or replacement. Look for any cuts, splices, or other damage. The original engine computer will typically have the manufacturer’s logo and part number printed on it.

8. Get a Professional Inspection

If you are not comfortable inspecting the car’s engine yourself, you can get a professional inspection from a mechanic. A mechanic can inspect the engine for any signs of tampering or replacement and can tell you if the engine is original.

Conclusion

Checking a car for an original engine is important if you are considering buying a used car. By following the steps above, you can help ensure that the car you are buying has its original engine and that it has not been tampered with or replaced.