peterborough@turbospeed.co.uk

bedford@turbospeed.co.uk

01234 857121

Fault Diagnosis

Due to their reliability, only 1% of turbo failures are due to poor manufacturing or manufacturing errors. Problems relating to the engine are far more common causes for turbo failure.

Before removing your turbocharger from the vehicle, please try one of our recommended remedies. If these do not make a difference, please call our returns department in Bedford on 01234 857121 or Peterborough depot on 01733 572164 for more assistance.

Here is a list of problems below along with a variety of solutions that we offer.

Engine Lacks Power

Possible Cause Possible Solution
Worn Internal Engine Components Repair or Replace the Engine Components
Low Boost Check Actuator and Wastegate Operations
Turbocharger Damaged Identify Cause of Damage, and Repair or Replace Turbocharger
Air Filter/Pipe Blocked Replace the Current Air Filter
Air Pipe Leaking from Filter to Turbo Check Hoses for Any Cracks and Tighten Hose Clips

Turbo Noisy

Possible Cause Possible Solution
Turbo damaged Repair or replace the turbocharger
Air leak – exhaust gases leaking from manifold or pipes Check and Replace Gaskets, Manifold (Check Bolts for Tightness), and Pipes (Check for Splits)
Turbocharger Damaged Identify Cause of Damage, and Repair or Replace Turbocharger
Air Filter/Pipe Blocked Replace the Current Air Filter
Air Pipe Leaking from Filter to Turbo Check Hoses for Any Cracks and Tighten Hose Clips

Exhaust giving off excessive blue/black smoke

Possible Cause Possible Solution
Foreign body damage to compressor or turbine wheel Take off air intake pipe – check for damage, replace turbocharger
Air leak – exhaust gases leaking from manifold or pipes Check and Replace Gaskets, Manifold (Check Bolts for Tightness), and Pipes (Check for Splits)
Insufficient oil supply to turbocharger Repair or replace turbocharger, find reason for insufficient oil
Actuator arm stuck in overboost Replace or repair actuator and/or clean turbo of carbon build-Up (sticky vanes)

Exhaust giving off excessive white smoke

Solutions:

  • Check Intercooler
  • Check Head Gasket
  • Check Turbo Internal Components

Excessive engine oil consumption

Solutions:

  • Fuel System Defective
  • Replace or Adjust Faulty Components
  • Check Air Pipe from Turbo to Inlet Manifold
  • Check Hoses and Intercooler for Leaks and Replace
  • Incorrect Operation of Crankcase Breather System
  • Check Breather Hoses, Pipes, and One-Way Valves Breather System

Boost Pressure Too High

Solutions:

  • Boost Pressure Control Valve is Closed – Hoses Split or Incorrectly Fitted
  • Check Fuel System
  • Wastegate Actuator Diaphragm Split or Incorrectly Fitted
  • Check Fuel System

Blocked Air Filter

To rectify this, we suggest that you either clean or replace the air filter.

Gas Leaks

When you are experiencing gas leaking from your exhaust, try replacing the gaskets and manifold.

Contact our reliable turbo specialists for a wide range of products repairs, supplies, and maintenance.

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