Acura MDX engine replacement due to radiator cap failure causing coolant system debris and subsequent overheating issues on Acura MDX

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Acura MDX owners report experiencing serious issues related to radiator cap failure, which can lead to coolant system debris and subsequent overheating problems. This can result in significant engine damage if not addressed promptly. Additionally, many owners have reported common problems such as transmission failure, harsh shifting, and power steering issues, particularly in the 2004 model. It is crucial for prospective buyers to thoroughly check the transmission history of used MDX vehicles. Regular maintenance, including routine inspections and timely replacement of the radiator cap, is essential to prevent overheating. If radiator cap failure is suspected, it is advisable to seek a professional inspection to assess any damage and determine necessary repairs. Given that engine replacement can be an expensive endeavor, owners should carefully consider the cost of repairs in relation to the vehicle's value.

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