Ttallent13
Member
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- Location
- Virginia
I’m having issues starting my 1991 m923a2. The truck ran fine about 3 weeks ago. The truck will crank but won’t start. I have a digital voltmeter in the truck. I have 24.4 ish volts before cranking. I notice though that when I flip the starter switch the voltage drops to around 17.4 to 17.6. I don’t remember in the past it dropping that low, I’m not sure what the minimum it needs in order to crank but that seems low. I tested the batteries and they test good but my tester said they were weak. I have them on the charger. Just wanted to see if any other bases need to be covered? Thought I remember reading someplace they need a minimum of 20 volts to turn over, but can’t find that now. Thanks in advance