Coolant Leak/Overheating Due to Radiator Leak on Mercury Mountaineer

Submitted by Jim Taddei · Jul 12, 2025
Published by RepairPal

Problem overview

A coolant leak may develop from the radiator. Ford has released and updated radiator and powertrain control module (PCM) software update to address this issue. The software update includes revised cooling fan operating parameters. Failure to complete both service procedures may result in repeated radiator failures.

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