Quick Question. When I start my 09 (stock wiring, 24v system intact) my Gen 2 light goes out immediately, but my Gen 1 light stays on for about 15-20 seconds. Once the truck idles for that time, it goes out. Everything seems to be charging well and she has done this since I brought her home 7 years ago. I can't remember if my 1st 09 did this, so I guess I am asking if this is normal?
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Gen 1 Dash Light
- Thread starter ssdvc
- Start date
Can’t say for sure if it’s normal, but that’s how mine works as well.
My sons 1009 did that before his batteries pooped a few weeks ago when it was cold. New batteries and it doesn't do that anymore. Not sure if you have a battery going bad or just weak, a corroded battery cable who knows...or nothing...low idle setting would probably do it too. Neither of mine do stay on once running.
Batteries are strong, cables and grounds are clean and tight. It has been doing this since I picked the truck up, I just decided to ask about it now. She turns over without hesitation when it is 15 degrees out and the batteries provided good staying power for "minutes" of cranking during my fuel debacle.
The light only stays on for about 15 to 20 seconds after she fires, then goes out and stays out. Also, the ammeter remains in the red during the time the GEN 1 light is lite and, once the GEN 1 light goes out, the needle heads into the green and all looks normal.
The light only stays on for about 15 to 20 seconds after she fires, then goes out and stays out. Also, the ammeter remains in the red during the time the GEN 1 light is lite and, once the GEN 1 light goes out, the needle heads into the green and all looks normal.
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What happens if you increase the RPM slightly by pressing the accelerator before the light is out? Does the light go out immediately?
nyoffroad
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It's just a little sleepy, check the belt tension on that alt.
Yup, if I blip the throttle, the light goes out.
All belts are fairly new and tight, no squealing.....for now!
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That's common. My passenger side alternator is the same and probably has never been rebuilt since the truck only has 28K miles. The driver side I rebuilt a few years ago and the light goes out immediately.
CSandoz
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My 1009 does the same thing.
It shouldn't be an issue.
It shouldn't be an issue.
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From TM 9-2320-289-10 Operators Manual:
1-14 b. (4)
If the generator lights do not go out within a few seconds, press accelerator and let engine return to idle; lights should go out. If not, inform your supervisor.
Also mentioned in section 2
2-2 1.
On all models except the 1010 ambulance, generator lights come on when ignition key is in the “on” position, but before engine is started. After engine starts, lights should go out and remain out. If either or both lights remain on after engine starts, press accelerator and let engine return to idle. If lights remain in or come on during operation of truck, IMMEDIATELY SHUT DOWN ENGINE and notify your supervisor. M1010 ambulance has no generator warning lights.
1-14 b. (4)
If the generator lights do not go out within a few seconds, press accelerator and let engine return to idle; lights should go out. If not, inform your supervisor.
Also mentioned in section 2
2-2 1.
On all models except the 1010 ambulance, generator lights come on when ignition key is in the “on” position, but before engine is started. After engine starts, lights should go out and remain out. If either or both lights remain on after engine starts, press accelerator and let engine return to idle. If lights remain in or come on during operation of truck, IMMEDIATELY SHUT DOWN ENGINE and notify your supervisor. M1010 ambulance has no generator warning lights.
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the skull
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My Gen2 does it. Normal for the Delco alternator.
M1009_SPAIN
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my gen 1 stays with light with the engine started, if I accelerate it continues with light, but the voltmeter on the dashboard shows 26v and the manual multimeter when I put it to measure it in each battery shows 28 the front and 28 the rear,
the gen1 bulbs are 168 and gen2 194, the seat belts are well tightened, there are no squeals, the fuses in the fuse box have been checked and there are none blown,
any ideas?
the gen1 bulbs are 168 and gen2 194, the seat belts are well tightened, there are no squeals, the fuses in the fuse box have been checked and there are none blown,
any ideas?
M1009_SPAIN
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The gen1 rebuilt
CSandoz
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When the alternator was rebuilt, did YOU rebuild it, or did you have a shop rebuild it?
Could be the regulator not working right or is the wrong one. At least the light is working!! Check the 2 pin connector at the alternator and make sure it's tight.
cucvrus
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the seat belts are well tightened, there are no squeals
There is nothing like a well tightened seat belt to make them squeal.
There is nothing like a well tightened seat belt to make them squeal.
CSandoz
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Im wondering if an insulator is missing or in the wrong place.
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If you unplug the two terminal connector from the regulator, does the light go out?