Turbocharger Leak Test
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Check for loose connections or damage to air intake hoses and tubes.
Air leaks at the compressor manifold, intake manifold hose, charge air cooler (CAC), or intake manifold can cause excessive smoke, loss of engine power or a noise condition.
Exhaust leaks at the exhaust manifolds or in the turbine housing will also cause loss of engine power and a noise condition.
Inspect turbocharger and components for loose connections or damage. Using a liquid soap on hose or tube connections will aid in leak detection.
Exhaust leaks can usually be detected audibly or visually by a discoloration caused by escaping hot exhaust gases.