Q: How can you check to see if one or more engine mounts are faulty? 2009 Honda Fit

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Car randomly makes slight noise and movement (similar to a heartbeat) but only in idle. Started 2 days ago.

My car has 124000 miles.
My car has an automatic transmission.

Hi there - to detect a failed motor/transmission mount, a technician may use a jack or large pry bar to attempt to lift or move the engine/transmission to determine loose motion - indicating a failed mount. Some motor mounts are hydraulic, and will leak fluid when they fail. Sometime, there is enough additional movement of the engine while it’s running to observe that a mount has failed. For assistance in determining if yours have failed, I recommend a engine/transmission mount inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

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