C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Jan 17, 2005 | 06:43 AM
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From: parachute co
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have a 89 coupe what reading should i get on my voltmeter
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Old Jan 17, 2005 | 07:23 AM
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From: Shelby Township Michigan
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I have the same year. Mine displays anywhere from 13.4 to 14.0 depending on the situation. Meaning, if it is just started, then the voltage is a little lower, as I drive, it starts going up. 14.0 is the peak I have seen.

Good luck,
Dino
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Old Jan 17, 2005 | 08:19 AM
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From: parachute co
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thanks for the info,looks like i'm ok
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Old Jan 17, 2005 | 08:33 AM
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From: Tucker GA
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In the winter mine reads 13.7-14.0
As car warms up the reading drops. The number that appears to be the most common is 13.7-13.6.

The A/C really saps voltage and when combined with summer heat down here can get the reading down to the low 13's. High 12's occassionally show up while waiting at stop lights with everything running.

MTCW.
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Old Jan 17, 2005 | 09:53 AM
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
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13.5 +/-.5volts, when the engine is running but without a load, is considered acceptable.

Larry
code5coupe
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