Research Bulletin 1993-3

 


Ford Ranger Fluid Filled Engine Mounts

The front engine mounts on Ford Ranger models equipped with a 2.3L 4-cylinder engine have demonstrated leakage characteristics when involved in frontal impacts.

The rubber mounts tend to tear during extreme displacements of the engine, resulting in the rupture of the fluid cavity inside the mounts. The fluid is light brown in color and is less viscous than motor oil.

Photographs 1 and 2 show the left and right engine mounts, respectively, after a 10 mph 40% offset barrier impact test.

The tear in the rubber is visible directly behind the bent mount casing on both mounts. Clean up and disposal of the fluid and damaged mount should be handled in accordance with OSHA standards for hydraulic fluid or motor oil.

Consequences are not severe. The mount can still support the engine and the leak does not pose a safety risk. The fluid filled cavity is designed to help isolate engine vibrations. Therefore, a vehicle that has a mount (or mounts) without fluid may tend to experience greater engine related vibrations during acceleration or at low idle.

Tech-Cor recommends the replacement of leaking engine mounts.


The information provided in this bulletin is for educational purposes only. Although every effort has been made to ensure the accuracy of the information contained in this bulletin, Tech-Cor assumes no responsibility or liability for any repairs performed using information from any publication issued by Tech-Cor.

Any person performing repairs must determine whether any suggested or recommended procedures or repairs are suitable or appropriate for the particular vehicle being repaired. The repairer remains solely responsible for such determination, as well as for the proper completion of the repairs.

Reproduction of this bulletin is not permitted without the written approval of Tech-Cor.

Tech-Cor, LLC, Wheeling, IL
© 1993 Allstate Insurance Company
All rights reserved.