I'm having some small electical problems with my '92 740 wagon, here goes:

My bulb failure warning light stays on most of the time. All my lites are working.

When I hit the brake, I get a loud "click" through the radio speaker.

I have replaced 2 radios(factory models from junk yards). work fine, but after a short period(a day or 2), the LED display quits working and the FM only works once in a while.

If I try to lower my right rear window, the fuse for the power windows trips.

Any suggestions?
Thanks

 

sounds like you need new wire harnesses or wireing or both. Volvo wireing is biodegradable and brakes down after long time.

 

ha, it's biodegradable?? that's crazy.

 

good old Volvo...Beastly strong cars AND environmentaly friendly!