Engine and engine cooling

Bulletin number

PIP5257E

Component

Engine and engine cooling

Summary

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses. Also updated to include ALL HFV6 engines Gen1 and Gen2.

Owners of these vehicles have filed 6,582 complaints in the engine category.