P0217

P0217-DECREASED ENGINE PERFORMANCE DUE TO ENGINE OVERHEAT

P0217 - Decreased Engine Performance Due To Engine Overheat Condition:

WHEN MONITORED
While the engine is running.

SET CONDITION
The engine coolant temperature is above a calibrated value for a calibrated amount of time.

POSSIBLE CAUSES
- ECT sensor
- Other DTC's
- Mechanical failure

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Diagnostic Test

1. OTHER DTC'S
With the scan tool, read DTCs.

Q: Are other Cooling system DTC's present?

YES: Trouble shoot the other DTC's first. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1
NO: Go To 2

2. ECT SENSOR
Allow the engine to reach normal operating temperature.
Use a temperature probe and measure the engine temperature near the ECT Sensor.
With the scan tool, read the Engine Temperature.
Compare the temperature probe reading with the scan tool reading.

Q: Are the readings within 10° F of each other?

YES: Repair the cause of mechanical failure. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1
NO: Replace the coolant temp sensor. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1