Diagnostic Test
WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK THE EXHAUST TEMPERATURE SENSORS
- Turn the ignition off for five minutes to allow the Exhaust Temperature Sensors to stabilize.
- Turn the ignition on, engine not running.
- With the scan tool check the temperature values of the Exhaust Temperature Sensors.
Are the Exhaust Temperature Sensors reading within 6°C (43°F) of each other?
Yes
- Go To 2.
No
- Replace the Exhaust Temperature Sensor that is out of range as compared to the others in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
- CHECK THE FUEL INJECTORS
- Using Fuel Rail Cap (special tool #9864, Cap, Fuel Rail) to cap off Fuel Injectors one at a time to determine if a Fuel Injector is leaking into a cylinder.
Were any of the Fuel Injectors found to be leaking?
Yes
- Replace the faulty Fuel Injector in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
No
- Replace the NOx Adsorber Catalyst in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
- Using Fuel Rail Cap (special tool #9864, Cap, Fuel Rail) to cap off Fuel Injectors one at a time to determine if a Fuel Injector is leaking into a cylinder.