What should the voltage be on the CJ gauge?
A volt meter can be used to measure the voltage between the A terminal of the temperature gauge and ground. It should be pulsing and averaging about 5 volts. If it reads 12 volts the jumper strip/regulator is bad. If it reads 0 volts, it has been burnt out. The sending unit can be checked with the following resistance between the post and ground…
Why does the Volt gauge go up and down?
The voltage always fluctuates, goes up and down depending on how much current is being used by the accessories, and the engine rpm, the charge state of the battery, the ambient temperate, all affect the voltage. Fluctuation is normal, it’s like the stock market.
What does a 12 volt temperature gauge mean?
A volt meter applied to the A terminal on the temperature gauge should fluctuate (plus and minus) near 5 volts. A reading of 12 volts on the temperature side indicates a bad regulator. 12 volts applied to the temperature gauge’s A terminal will cook the gauge.
What are the symptoms of a bad voltage regulator?
One of the first symptoms of a failing or faulty voltage regulator are dim or flickering gauges. Since it’s the regulator that supplies power to the gauges, the gauges will start to dim and flicker if there’s an issue with the power supply.
A volt meter can be used to measure the voltage between the A terminal of the temperature gauge and ground. It should be pulsing and averaging about 5 volts. If it reads 12 volts the jumper strip/regulator is bad. If it reads 0 volts, it has been burnt out. The sending unit can be checked with the following resistance between the post and ground…
Why does my voltage guage only show 9-10 volts?
My voltage guage usually points near the red mark at 9-10 volts. Batteries cranks the starter quickly and it does not seem to lack any electric power. Some times driving, it will raise to about 12 V, but never above, and the next minut point at 9 again.
What should I do if MY Volt gauge is too low?
After a jump start (which you should never need or do) you MUST put that battery on a charger for 12 – 24 hours. A battery that has gone dead twice for any reason is no good. Replace it with the right one, not one you think will work. 700 CCA is too low.
Why does the battery gauge go back to 12 volts?
When your gauge read ~12volts and a new battery it went back to 15 volts, the old battery was overloading the alternator with an internal short. At one time I had a battery short bring it down to 9 volts and the computer went nuts. The engine back fired I just made it to a battery shop.