M1008 gen 1 light

[dlayman21]

I'm new to this site. I just bought an 1984 m1008. Having a few issues, first I would like to find out if the gen 1 light is supposed to stay on all the time. When I first start the truck both lights come on then gen2 light goes off and gen1 stays on. My batteries are either being drained for some reason or they are not being charged. The battery gauge inside is in the yellow. Thanks.

 

[TexAndy]

What's the voltage on the battery? Both with the engine running and not.

 

[Gripy]

blip the throttle. should kick the motor into high idle and make the gen light turn off.

 

[cucvrus]

My quick guess is the left alternator is not charging. All else should be good if the light is coming on. That is a plus. Take a voltage meter and test the alternator out put. Or just switch the alternators around. gen 2 light should come on then. My guess alternator if all the wires are hooked up properly and plug is tight. Double check. Let us know what you found.

 

[dlayman21]

OK, thanks for info so far....that was quick. I am going to try and work on it later and will report. Thanks

 

[TexAndy]

blip the throttle. should kick the motor into high idle and make the gen light turn off.

That's what my m1009 does about 50% of the time. Gen 1 light stays on until I blip the throttle and the engine goes into high idle. Sometimes. Half the time it goes out within half a second of engine start, just like gen 2.

 

[Warthog]

Read the stickies in the CUCV Helpful Threads. The alternators and the idiot lights are covered in detail.

http://www.steelsoldiers.com/showthread.php?123199-CUCV-Helpful-Threads

And as far as blipping the throttle, the Tech Manual even says to do that.

 

[dlayman21]

Well I am going to have to wait to figure out gen 1 issues, I think I having a fuel issue now, it will start with pedal down about 3/4 and as soon as I let it go the engine dies. What exactly is "blipping the throttle"?

 

[TexAndy]

Briefly rev the engine a metric smidge with your starboard foot.

 

[dlayman21]

Thanks Andy