Where is the frost plug on a 1986 Nissan pickup 3.0 v6?
The frost plugs on a 1986 Nissan pickup 3.0 V6 are located on the side of the engine block. There are two frost plugs on the driver's side and two on the passenger's side. The frost plugs are round, metal caps that are pressed into the block. They are used to prevent the engine block from cracking in cold weather.