Measure the boost pressure at the intake manifold by using one of the tapped or plugged intake access holes
shown in the illustration. Refer to the specifications in this section.
NOTE: If the engine has charge air cooling, testing must be done to ensure that the charge air cooler system is not
leaking or restricting the turbo boost pressure – refer to Procedure (3-08) for charge air cooler testing.
Exhaust leaks can usually be detected audibly or visually by a discoloration caused by the escaping hot gases.
Donโt overlook exhaust restriction as a cause of low power.
If the exhaust gasses can not flow freely, the turbocharger will not operate efficiently.
