Use pressure gauge, Part Number 3823205, to record the air pressure at the inlet of the charge-air cooler. Install the
pressure gauge in the 1/8 – inch fitting in the turbocharger compressor outlet elbow.
Monitor the intake manifold pressure sensor reading with INSITE electronic service tool, to record the air pressure at the outlet of the charge air cooler.
Operate the engine at rated rpm and load. Record the readings on the two gauges.
If the differential pressure is greater than 20.6 kPa [3 psi], check the charge air cooler and associated piping for
plugging, restrictions, or damage.
Clean or replace, if necessary.
After the test is complete, cover the open points on the charge-air cooler with protective caps from the Air
Handling Clean Care Kit, Part Number 4919498.
