2003 park ave strut mount failure

I have had the LF strut mount fail three times in the last three months. The strut has pushed through the upper mount. The guy a bought the car from said he had the struts replaced about a year ago. Could it be a bad strut?

Are you installing aftermarket upper mounts? The replacements may have a defect, and that defect might run in batches or lots.

Are the bushings on the replacement mounts able to turn freely?