93 6.5 diesel

drof · 05-15-2005, 05:33 PM

My revcounter and speedometer jump around together even while the motor isn't running. All I need to do is turn the key. Has anyone come over this problem out thier?

Pamsdad · 06-03-2005, 09:38 PM

Bad Grounds are a Common Problem...

troy1 · 06-03-2005, 10:02 PM

bad ignition switch? 95 have this happen but the tech and speedo quit working and cause bad shifting

troy1 · 06-03-2005, 10:02 PM

bad ignition switch? 95 have this happen but the tach and speedo quit working and cause bad shifting

drof · 06-05-2005, 01:40 PM

Thanks for the replies.
I have already tried running a ground wire directly to the back of the instrument cluster and cleaning the connectors which made no difference.
The ignition switch has been giving some problems. Starting and on a dark night I can see arcing in the column starter switch. Sounds like the two problem could be the same thing, I think Ill try replacing the switch next.
thanks again Drof.

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