1984-1992 v6 late model under seat black box connected to computer if you are lookinf for (ECM) electronic control module.
1992 v8 is in same place ..driver side
Yes they do.
Yes.
The heater core in a 1987 Chevy Celebrity is in the heater plenum to the right of the hump and below the glove compartment.
under the drivers seat
i had a 1987 custom deluxe with electronic tranny.
In the fuel tank.
it is located on the bottom end of the head
on the low pressure side
By the rear wheel, in the well.
There are multiple expansion plugs in the engine block.
Its on the upper engine in front of the valve cover
under right dash Rick