I have heard this ticking noise a couple of times and I just found where it is coming from. My FAST analog gauge has a "ticking" noise coming from it and I can see the needle jumping slightly with the ticking noise. Keep in mind that this is with the car OFF. It was loud enough that I heard it ticking from outside of the car when I was walking by it in the garage. It does not do it all of the time and I have only heard it on occasions. I pulled the positive battery cable and of course it stopped, but any ideas on what is causing this? I am assuming that this is a battery drain.
Note: the gauge works fine when driving.

Thanks

Let me try and explain this some more. I have heard this ticking noise a couple of times now and both times I thought that it sounds like a relay up and under the dash that is switching on/off, but the ticking noise is coming from the FAST analog guage. The needle is bouncing about 1/16" in rythem with the ticking noise.
An EE at work had suggested that the gauge might have a bad ground and this could be. The gauge is the plastic round body with the sheet metal bracket that I have bolted to the dash frame. I am thinking of running an external ground wire from one of the mounting nuts (shown in the picture) to see if that helps.

Any ideas? I drove the car and the gauge was working fine.

Thanks

those mounting studs just look they anchor into the plastic,mabey see if you get continuity betweem them,but they still might not be con.to the guage frame inside the housing.intermitant probs are a [Edited by Moparts - Family Friendly Site - Keep it clean].