Loss of Power: Noticeable decrease in engine performance and acceleration.
Excessive Exhaust Smoke: Blue or black smoke from the exhaust may indicate oil or fuel issues.
Whining or Grinding Noises: Unusual sounds coming from the turbocharger, indicating wear or damage.
Check Engine Light: Activation of the check engine light, often linked to turbo-related issues.
Oil Leaks: Oil around the turbo area can suggest seal failure.
Poor Fuel Economy: Decreased efficiency due to turbo malfunction.