Why are my gauges erratic on my 77?

Asked by dustyoldtimer24 Nov 18, 2014 at 12:24 PM about the 1977 Datsun 280Z

Question type: Maintenance & Repair

The gauges go to appropriate levels at starting, then - in unison - the temp, oil pressure and fuel level all slowly go to zero, then head back up some then head back down some, etc.  If it weren't all three, I would think it was a sensor, but it sounds like ground to me.  I have removed all three, unhooked all connections cleaned thoroughly with contact cleaner.  No effect.

4 Answers
144,705

T_S_T answered 9 years ago

I think it may be a ground at,the guage cluster itself,or cluster is going bad.

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