Author Topic: No power to dash instruments  (Read 807 times)

Offline DocMel

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No power to dash instruments
« on: August 19, 2013 - 05:46:55 PM »
71 Cuda with Ralley dash   Went for a 3-4 hour drive.  Stopped enroute, and no power to instruments,   I could start and drive the car, no other probs    I just installed a 120 amp alt the day before.   Sound like a blown voltage relay?




Offline Chryco Psycho

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Re: No power to dash instruments
« Reply #1 on: August 19, 2013 - 06:52:04 PM »
if all three quit at the same time fuel oil & temp I would suspect the VR ,  the Tach ammeter clock are all powered seperatly

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Offline DocMel

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Re: No power to dash instruments
« Reply #2 on: September 05, 2013 - 04:59:08 PM »
Sorry: Fuel, temp and oil pressure are the gauges that went out. 

This  happened about a 3 hour drive after I installed a 120 amp alternator.  I had a solid state type voltage limiter, and just now replaced it with the same type

The three gauges work fine now.  I am going back to a 75 amp alternator just in case that caused the issue