Gauge Not working, Whats Wrong?

[MRTOOTH]

On my 75' 280 Z my oil pressure/tempature gauge does not work In the Hayes manual it says that the instrument voltage regulator could be bad. Does such a part exist? If it does, where is it, and could that be the problem? If it is not what can it be?

Jeff

[skip260z]

Faulty oil senders are commen problem.

[MRTOOTH]

Both sides don't work.

[EScanlon]

In the KISS principle method:

Have you checked to make sure that the unit is plugged into the wire harness?

[carguyinok]

Before going hunting around inside your dash. Have you looked under the hood? The 2 you are talking about are very easy too bump off or break.

[MRTOOTH]

Sometimes it moves then 10 sec later they die. :dead:

[carguyinok]

(Sometimes it moves then 10 sec later they die)

it & they ? They bolth come on and go out at the same time?

[CoastGuardZ]

The very simple method of troubleshooting.

"Good in, Bad out you've found the culpritt"

I'm not yet an owner, but I am an Electronics Tech. Granted, $50,000 radars aren't auto gauges but they're pretty close.

What's the one thing they have in common?

A. power?

B. are they in the same cluster?

I don't know

If they are ( If they're hooked up properly the chances of both senders being bad are slim. Most likely the Cluster should be replaced. The Gauge Voltage Regulator that the Haynes manual is refering to is more than likely in the cluster.

If I couldn't be any farther off even if I lived in a closet let me know.

The two most common problems on our boats are

A. It's not plugged in

and

B. Grounding, you've got to have a good chassis ground.

Happy hunting and good luck!!! :cross-eye