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Zippi · 07-12-2020, 05:05 PM

It started pouring down rain today so my yard project came to a halt. I made a trip to Harbor Freight and picked up a multimeter just to see what my charging system is doing as my in-dash meter (Classic Instruments) was showing below 13 volts at times with the AC on. This time the meter showed about the same as the multimeter. It never dipped below 13 volts. Probably need to check it next time I see it drop below 13 volts to see if its the gauge which I suspect or my charging system. What do you guys think about the numbers I'm seeing?

Pic #1 - Engine running, electric fuel pump, and electric fan
Pic #2 - Engine running, electric fuel pump, AC on with blower on high
Pic #3 - Engine running, electric fuel pump, AC on with blower on high, radio on, headlights on

07-12-2020, 05:05 PM	#1
Zippi Registered User Join Date: Nov 2019 Location: Southern Indiana Posts: 585	*Volt Meter Drops Below 13 Volts* It started pouring down rain today so my yard project came to a halt. I made a trip to Harbor Freight and picked up a multimeter just to see what my charging system is doing as my in-dash meter (Classic Instruments) was showing below 13 volts at times with the AC on. This time the meter showed about the same as the multimeter. It never dipped below 13 volts. Probably need to check it next time I see it drop below 13 volts to see if its the gauge which I suspect or my charging system. What do you guys think about the numbers I'm seeing? Pic #1 - Engine running, electric fuel pump, and electric fan Pic #2 - Engine running, electric fuel pump, AC on with blower on high Pic #3 - Engine running, electric fuel pump, AC on with blower on high, radio on, headlights on Attached Images __________________ If you can't fix it with duct tape, it's an electrical problem. 1949 5 Window 3100 https://zippi6.wixsite.com/adtruck Last edited by Zippi; 07-13-2020 at 06:57 AM.