RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN 6 (1998)
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR INTAKE / BOOST SYSTEM
The air intake system consists of the air cleaner/ housing assembly, turbocharger, charge air cooler piping, charge air cooler, intake air grid heater, and
the intake manifold.
Intake Air Circulation
Intake air is drawn through the air cleaner and into the turbocharger compressor housing. Pressurized air from the turbocharger then flows forward
through the charge air cooler located in front of the radiator. From the charge air cooler the air flows back into the intake manifold.
The charge air cooler is a heat exchanger that uses air flow from vehicle motion to dissipate heat from the intake air. As the turbocharger increases air
pressure, the air temperature increases. Lowering the intake air temperature increases engine efficiency and power.
CAUTION: The charge air cooler must be cleaned following turbocharger failure involving an oil leak. Oil leaking from the turbocharger can cause
engine runaway, possibly leading to engine failure. Refer to Charge Air Cooler Removal and Installation.
