Engine mounts, engine shocks, engine oil cooler lines.
If any of these are bad, now is the time to replace them.

As mentioned:
The area under the battery, but follow it all the way to the fuse box, power wash the trough out, especially if it is full of mulch or leaf crud.

"mplafleur", will tell you how critical this can be.

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/