Instrument Cluster issues

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Oct 30, 2005 | 11:41 PM

desperado_18_2000

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Joined: Jan 2001

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From: S. Mississippi

Instrument Cluster issues

I recently swapped in a instrument cluster with tach, to my 83 F-150. When it was first installed the gauges worked correctly, minus the tach. Now after having it in a short while, all my gauges have stopped working aside from the voltage meter. What could have gone wrong here? Fuse maybe?

Maybe i could take the instrument cluster printed circuit board and swap it to my old cluster and install the tach in it? Would this work?

I've yet to test the tach outside the cluster...i'm not worried about that. I just want my gauges back.

Oct 31, 2005 | 12:59 PM

Piffery1

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From: Niceville, FL.

Could be: 1. Instrument voltage regulator bad. 2. Instrument Cluster Ground bad, resistance from instrument voltage ground terminal to chassis ground should be 1 Ohm or less (or run a seperate ground wire from instrument voltage regulator mounting tab screw to chassis ground) . 3. Bad resistance wire (black/light green) in wiring harness (supplies voltage from Ignition Switch "Run" to instrument voltage regulator) or "open" somewhere in this circuit. To check: disconnect battery and measure resistance from instrument voltage regulator input terminal to + battery terminal with ignition switch in "Run" using an Ohmmeter. Resistance should be 8 to 9 Ohms or so. 4. Poor connection at instrument cluster plug or break in printed wiring assembly.