Does the voltmeter on the car any indication of the condition of the alternator? What does it measure exactly, or what good is it? I have 2003 Ford Crown Victoria. This car has a voltmeter on the dashboard. There is no voltage mark, just a needle and high/low marks. The needle always sits just abo…

If it provided an accurate voltage measurement at the battery terminals, that could be useful info. For example the battery should measure about 12.5 volts first thing in the morning, before starting the car. And that measurement should go up to 14-15 volts once the engine is started, then taper …

Car Talk Lackey Great answer GeorgeSanJose! See: [image] The Important of Volt Meter In Your Car Most of the old-school car factory installed with analog voltmeter. But most of the modern car nowadays does not equipped with this vital to...

http://www.ebay.com/itm/03-04-05-Crown-Victoria-Speedometer-Instrument-Cluster-Dash-Panel-Gauges-149-007-/371286536704?hash=item567266f200:g:VA4AAOSwqu9VDAuV&vxp=mtr With a gauge poorly marked (or not marked…) like this you have to assume the lower mark is 12 and the upper mark is 18. That means a…

I’m not a fan of gauges. I don’t find the info they provide to be very useful (other than the fuel gauge and speedometer). I prefer warning lights. Gauges rely too much on interpretation and driver judgment. If the engine temp is too high, turn on a light to warn me. If the oil pressure drops, turn …

I had a voltmeter on my jeep before. It’s quite accurate in reading the voltage of the battery and the alternator voltage with the engine running.

[image] asemaster: If the engine temp is too high, turn on a light to warn me At what temperature should you be warned by a warning light? I was able to diagnose and get replaced a bad head gasket before my engine overheated because I have a temperature gauge and noticed it was a tad higher …

How many drivers ignore the gauges until the engine stalls or makes noises or smokes? I prefer accurate gauges myself but few cars have them. Ford’s oil pressure gauge is a total joke as it operates on an ON-OFF sender and moves the needle to the mid point at about 13psi where it remains until press…

I don’t normally click on any links ( I am able to do my searching for information ). This time I clicked on the link posted by Cyberbabe about Volt meters. The writing is poor and seems to be translated to English.

[image] Whitey: At what temperature should you be warned by a warning light? I’d say about 245*. As far as I’m concerned anything below that could be considered normal depending on engine load and ambient conditions. Most (I’d say over 90%) people are not as vigilant about monitoring gauges …

I like temp gauges and voltage gauges. Remember one car died, then the voltage "idiot light came on. Temp too low or rising not to alert level I like that. Bought a new battery, voltage gauge 14 while running, sounded a little slow cranking, about 10 volts charge indicated with engine off. Took it t…

What good is a voltmeter on dashboard?

Maintenance/Repairs

BillRussell December 11, 2016, 1:39pm 20

in case you don’t know, you can buy $12 voltmeters on Amazon that plug into the cig lighter outlet and display battery voltage and cabin temperature. Very handy.

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What good is a voltmeter on dashboard?

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