It was during the day and my car has John Herveys relay that only turns on the AC panel lights when the headlights are on, so I would not have noticed if any of the dash lights had been affected. I do have the workshop manual/electrical schematic and have become somewhat familiar with reading it recently. I will be cleaning the grounds and tracing the wire tonight to try to fix the problem. Thanks, -Derek #10084 --- In dmcnews@xxxxxxxxxxxxxxx, "Elvis Nocita" <elvisnocita@xxxx> wrote: > Derek, > > sounds like an electrical problem so don't worry too much, > the engine is not going to explode from that ;-) > > > Is there any other strange things happening in the dash ? > Dimm or flickering lights ? > > The Tach has 3 wires. +12V, GND and Signal form the Ignition ECU. > > If the ignition signal would be disturbed, the car would run like > crap or not at all. I think we can close this out for a second. > > What I would suspect is the GND connection in the center console > close to the radio. There must be a capacitor near the A/C switch > and two more from the fan speed switch. The caps are there to filter > noises from the fan motor that could disturb other systems like...the tach ? > > Also - wat does the volt meter show during this situation ? > > May be there is a problem or with the +12V coming from fuse #5. > At least this is where I would start looking, especialy for loose > GND connections. > > Do you have a schematic ? Can you read it ? > > Elvis > [moderator snip] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/