Hello. I have an m998, two thing happened at once. I started it the other day and noticed the glow plug light did not come on. Then as I was driving I noticed the voltmeter was in the yellow, not charging. I cleaned grounds on the shunt and terminals on alternator, still not working. Testing many times past couple of days, glow plugs worked once and charged for a few seconds... Then back to yellow,and no plugs again.
I do NOT have 24v at the IGN terminal on the regulator with the ignition switch on. If I jump power from 24+ on alternator to the IGN on regulator, then the alternator works perfectly and charges at 28.6v high idle.but no glow plugs yet, and voltmeter does not cycle down to yellow off and on a few times , like when it's a cold start up.
Question.... Does power leave the ignition switch and goes directly to IGN terminal on regulator , or does it go thru the control box first? I cleaned many terminals and no help. None were even corroded either. This Humvee is very clean. Being I got it to work a couple of times, I have to believe it's a bad wire or connection somewhere. It's odd both things happened on one start up the other day.
100 amp niehoff dual voltage alternator 12447110, n3135 regulator
6.5 engine , m998
Thanks for any/ all help.
I do NOT have 24v at the IGN terminal on the regulator with the ignition switch on. If I jump power from 24+ on alternator to the IGN on regulator, then the alternator works perfectly and charges at 28.6v high idle.but no glow plugs yet, and voltmeter does not cycle down to yellow off and on a few times , like when it's a cold start up.
Question.... Does power leave the ignition switch and goes directly to IGN terminal on regulator , or does it go thru the control box first? I cleaned many terminals and no help. None were even corroded either. This Humvee is very clean. Being I got it to work a couple of times, I have to believe it's a bad wire or connection somewhere. It's odd both things happened on one start up the other day.
100 amp niehoff dual voltage alternator 12447110, n3135 regulator
6.5 engine , m998
Thanks for any/ all help.