> I have a sloshing sound on the drivers side. The doors are clear
> Where can it be trapped?
The problem actually is the drains in the rocker panels and it applies to all 80s. The drain slots are very small and clog easily.
There are three on the bottom of each sill under the doors, one near the front, one at the middle and near the back. They are right on the seam and can be difficult to find. When you have a close look, you'll spot them. A fine stick or something will clear them (actually, the thin end of a zip tie is good). It is an idea to pull the rubber bungs and flush the rockers out every now and then. They fill with dust and once water gets in, it makes mud.