TSB 26-2217

This bulletin supersedes 24-2441. Reason for update: consolidation of prior bulletins and an update the Service Procedure to diagnose and replace the cylinder head temperature (CHT) sensor with an updated version. Some of the vehicles listed in the Model Statement above may exhibit all of the following conditions: * Illuminated power train malfunction (wrench) indicator/malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P1299, P1285 and/or P2C39 stored in the powertrain control module (PCM). * "Engine Over-Temperature" and/or Service Vehicle Soon warning message(s) displayed in the instrument panel cluster (IPC) This may be due to the software in the PCM and/or the CHT sensor. Note: The vehicle's cooling fan will operate normally with no loss of engine coolant.