I had the same issue and it was the PCV. There are good video instructions to be found on these internets.

I have enjoyed owning my 97 850 from new, and I have also bought all the tools needed to do basically everything on the car. The only thing I have not done is the transmission and an engine rebuild. If you are so inclined, try to get your elbows greasy. If is starts to have minors issues you could e...

That "fat" tube is an air hose and it is screwed in with two self tapping torx screws. I found it easier to remove it when I was assembling the ac lines, so I will guess that you may prefer to remove it the first time. There is a good write up by a "wood worker" on the internet t...

I am having a problem with mine. What I have to do is slide the radio out and pull/push the antenna where it enters the radio. It picks up immediately. If not it will seek and scan for about 5 minutes until it locks into a channel. There is a thread somewhere that talks about corrosion at the socket...

I just tested the amp draw (parasitic drain) that the stereo may or may not have been causing. The result is that the hot radio was causing a drain of 2.185 amps. When the radio is unplugged, the car draws .087 amps. So for some reason the hot radio is sucking something. A friend has an SC710, and w...

I have an SC811 in my Volvo. I recently did an evaporator change and had to take out the entire dash. When putting it all back together I noticed the factory radio quickly got hot even when it was simply plugged in and not turned on. When I plug the radio in and sit there for 10 minutes the rear pla...

This issue of the interior dome lights stopped working and the door chimes keep going is upon me. I went to the gas station, filled up, jumped in and the ding, ding has not stopped since. I checked the fuse box and saw where the fuse for that circuit was blown. When I replaced it everything came bac...

Instead if starting a new thread, Shiloh and I have similar problems.

I grounded the yellow and the yellow and white and the fan came on. When the car is hot and I tap the relay the fan starts and stops immediately. Any thoughts on this being the ECU or the wiring from the ECU?