Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE AIR CLEANER BOX FOR PROPER SEALING
1. Check the connection between the Inlet Air Tube and the Air Cleaner Box to make sure that it is sealed properly.
  Is the Air Cleaner Box to Inlet Air Tube installed and sealed properly?
  
  Yes
  - Go To 2.
  No
  - Repair the connection between the Air Cleaner Box and the Inlet Air Tube.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE CHARGE AIR COOLER AND SYSTEM FOR DIRT OR DEBRIS
1. Remove the hoses at the Charge Air Cooler and Turbo outlet and inspect the system for signs of excessive oil, dirt or debris.
  Does the Charge Air Cooling system show signs of excessive dirt or debris?
  
  Yes
  - Clean the Charge Air Cooling system in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK THE INTAKE AIR TEMPERATURE SENSOR
1. Disconnect the Intake Air Temperature Sensor harness connector.
2. Remove the Intake Air Temperature Sensor and reconnect the wiring harness connector to the sensor.
3. With the scan tool in Sensors, Monitor the Intake Air Temperature Sensor.
4. While heating the sensor with an external heat source (DO NOT USE OPEN FLAME).
  Does the reading from the sensor increase at least (5°F) on the scan tool?
  
  Yes
  - Go To 4.
  No
  - Replace the Intake Air Temperature Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
COMPARE THE INTAKE AIR TEMPERATURE SENSOR
1. After an eight hour cold soak, connect the scan tool and monitor intake air temperature, EGR orifice temperature, and engine coolant temperature.
  NOTE:
  Make sure ambient air temperature is above -6.7°C (20°F) when performing this test.
  
  NOTE:
  Make sure there is no external heat source, such as a block heater, operating during this test or within the eight hour cold soak.
  
  Does the Intake Air Temperature Sensor read differently from the other sensors?
  
  Yes
  - Replace the Intake Air Temperature Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .