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Maxed out guages

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Old Jul 14, 2017 | 03:29 PM
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hallenbeck
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Maxed out guages

Howdy all!
On my 73 SCS, the fuel, oil pressure, and temp guage all slowly climb and peg out to the right. Every once in awhile they will operate normaly.


Thoughts on what this is?


Thanks!!
 
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Old Jul 14, 2017 | 05:16 PM
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NumberDummy
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Originally Posted by hallenbeck
On my 73 SCS, the fuel, oil pressure, and temp guage all slowly climb and peg out to the right. Every once in awhile they will operate normaly.

Thoughts on what this is?
ICVR = Instrument Cluster Voltage Regulator snaps onto the back of the printed circuit board. Affects the fuel, temp and oil pressure gauges.

Sometimes, when this puppy begins to fail, the gauge needles do the "hula" .. swing rapidly back/forth on their own.

Sometimes, the needles climb, then slowly come back down. But when the puppy fails, no gauges at all, they're as dead as Julius Caesar.

D1AZ-10804-A .. ICVR (Motorcraft GR-513) / Obsolete ~ Available NOS & from auto parts stores.

1971/86 F100/350 / 1971/91 Econoline / 1978/86 Bronco // Misc: 1971/89 FoMoCo Passenger Cars.
 
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Old Jul 17, 2017 | 08:07 AM
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Always learning something new. Thanks for the info!!
 
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