I wouldnt worry about it if it as cobwebs in it.
Likely just something that your car doesnt have, be a air pump connector or something cali emissions related or whatever.
Motor mount is easy. Unbolt the upper motor mount aka dog bones and then jack up the passenger side and support with jack stand. Remove all 4 nuts from the motor mount and then use your jack with a BIG 2x4 or 2x6 piece of wood between the oil pan and jack. You must use a piece of wood so you don't dent the pan, then jack up the motor and remove the mount.
