- Oil burning: This can be caused by several issues, such as worn or damaged piston rings, a valve seal, or a cracked or damaged cylinder head gasket.
- Fuel injector issue: This can be caused by a faulty injector, a clogged injector, or a misfiring engine.
- Turbocharger failure: This can cause a variety of issues, including black smoke and loss of power.
- Air filter restriction: This can cause the engine to run too lean, which can produce black smoke and a loss of power.
Loss of Power
- Loss of engine compression: A lack of compression can cause a loss of power, poor fuel economy, increased engine noise, and hard starts.
- Fuel system issues: This can include a fuel filter that is too dirty or too small, a faulty fuel pump, or a clogged fuel injector.
- Ignition system issues: This can include a faulty spark plug, spark plug wire, or ignition coil.
- Intake system issues: This can occur due to a restricted air flow filter, a faulty oxygen sensor, or a clogged intake manifold.
