Jan, I had a similar type problem with the alarm going off randomly like that or the whole car just shutting down completely either while parked or in the middle of driving. Then working just fine at other points. My mechanic traced it to a VERY loose battery connection behind the panel directly below the rear window. You have to remove that carpeted piece to check it. He said it was very loose. It's on the passenger side and is the connection that goes thru the firewall into the electrical box on the passenger side of the engine compartment. Tightening that up fixed all my electrical problems. I just wish I had found it myself because it cost a bundle to have my mechanic find just a loose connection and tighten it up. I now have learned from some PNDC club members that this is a common loose connection on DeLoreans. shiraz --- In dmcnews@xxxx, Jan van de Wouw <Jan@xxxx> wrote: > Hello everyone, > > So, what do I know? > - the car seems OK, since everything works now. > - my alarmsystem works the way it is supposed to. > - the battery connections are in place and firmly seated > - I HATE the sound of my siren and makes my ears hurt ;-) > - The tach can spin over 360 degrees without breaking... > - there is SOMETHING WRONG, but I don't know what or why!!! >