Couple questions....my 88 240's A/C does not seem to be working. No clicking sound when you turn it on. Sounds like it's dead. Not blowing any cold air at all. Also, having problems with the rear light kit. Some lights work some lights don't. Got new sensors for bulbs but still having issues. Any advice would be appreciated, but please be as specific as possible in what to look for as I am not too familiar with cars but trying to be a bit more self sufficient in maintaining this wonderful car.

Please tell if wagon or 4-door as tail light assembly differs.

Hmmm?
Rear light kit? Do you mean tail light assembly?
You mentioned sensors for bulbs, but I don't know what you mean.
Do you mean the bulb-failure relay?
Please tell exactly which lights work and which don't.
If some fail intermittently, tell that too.

You'll find good help for this on this board.

Someone may have other comments on A/C, but my personal answer - for 4 240's we've owned, and about 450K miles driven by us - has been to let the A/C die and stop throwing money at it. I did keep the A/C working in one of them for about 6 years, but it cost good money.

The real cure for the A/C is a full and proper conversion to R134a (correct name??) with some major parts supplied in a kit from Volvo; it costs about $700 or so to have a good shop do the conversion. The existing system was designed for the old stuff and doesn't work very well if you just change a couple seals and the refrigerant.

If you do try the simple less expensive conversion, you'll have leaks sooner or later, and will end up dumping in lots of the old expensive refrigerant and replacing leaky components at high costs. And not much cooling power with 134a in the old mechanical system that's there.