voltage guage
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Senior Member
Joined: Jun 2000
Posts: 515
Likes: 1
From: Webster,Texas,USA
Car: 1990 Formula
Engine: 5.7 liter
Transmission: 700R4
voltage guage
this thing doesnt stay at 14.4 it just stays at 12.0 or maYBE 12.5 volts. at idle in park it sometimes reaches proper voltage but not consistantly. is there a way i could check to see if i have a exessive draw somewhere? thanks people
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Member
Joined: Jul 1999
Posts: 317
Likes: 0
From: Chandler, TX
Car: Used to be an '87 IROC
Engine: 5.7l TPI
Transmission: 700R4
Axle/Gears: 3:23?
Your gage is most likely inaccurate. Using a meter, check the voltage at the battery. Check it at idle and at 1000 RPM or so. Note the difference and simply keep that in mind when looking at your instrument panel.
Mine reads just over 13, but the ECM sees around 14. Measuring the voltage within the printed circuit of the instrument cluster is a poor choice if accuracy is important. It's done that way for ease of manufacturing.
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'87 IROC 5.7l TPI - original owner!
Mine reads just over 13, but the ECM sees around 14. Measuring the voltage within the printed circuit of the instrument cluster is a poor choice if accuracy is important. It's done that way for ease of manufacturing.
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'87 IROC 5.7l TPI - original owner!
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