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Lights Dimming

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Old 03-08-2007, 12:16 AM
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FroneDaddy FroneDaddy is offline
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Default Lights Dimming

When it's cold outside and I first turn my truck on all my lights dim for a minute or so and then get bright again, and this continues for a while. When they dim I hear a clicking noise on the passenger side of the engine compartment. The stealership tells me this is normal, and the noise is a heater that heats the air going through the intake and the lights are dimming because the heater draws so many amps. Does this sound right?
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Old 03-08-2007, 12:23 AM
thib thib is offline
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Default RE: Lights Dimming

The stealership is right. I have an 06 and it does the same thing. It will keep doing it until it is warmed up
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Old 03-08-2007, 12:45 AM
cumminalong cumminalong is offline
 
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Default RE: Lights Dimming

Perfectly normal. It's your grid heaters cycling on and off. They draw a huge amount of current.

Nothing to worry about.
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Old 03-08-2007, 01:14 AM
RobertDunn RobertDunn is offline
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Default RE: Lights Dimming

HMMWVs (Military hummers if you don't know the acronymn) do the same thing.
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Old 03-08-2007, 01:15 AM
trbodiesel trbodiesel is offline
 
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Default RE: Lights Dimming

yeah lots of amps... look at that voltmeter swing too.
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Old 03-08-2007, 01:53 AM
Greg Swartz Greg Swartz is offline
 
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Default RE: Lights Dimming

Wow. I have the same issue (I guess we all do.) I thought it had something to do with the alternator and battery, and maybe some cycling going on.

Thanks for the heads up.
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  #7  
Old 03-08-2007, 02:05 AM
Greg Swartz Greg Swartz is offline
 
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Default RE: Lights Dimming

Good 'ol military HMMWVs... Yep, I remember that now.
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Old 03-08-2007, 04:05 AM
handymanherb handymanherb is offline
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Default RE: Lights Dimming

Cummins is in the Hummer too!
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Old 03-08-2007, 04:50 AM
Kev_n_AZ Kev_n_AZ is offline
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Default RE: Lights Dimming

would that happen if ya had dual batteries??
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Old 03-08-2007, 04:59 AM
thib thib is offline
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Default RE: Lights Dimming

There is two batteries. The heaters just draw up lots of amps.
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Old 03-08-2007, 06:25 AM
greyghost2 greyghost2 is offline
 
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Default RE: Lights Dimming

Normal even with 2 batts and ho alt.
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Old 03-08-2007, 08:39 AM
sabersix sabersix is offline
 
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Default RE: Lights Dimming

Quote:
ORIGINAL: handymanherb

Cummins is in the Hummer too!
IIRC, the HMMWV has a GM diesel.
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Old 03-08-2007, 09:40 AM
cumminalong cumminalong is offline
 
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Default RE: Lights Dimming

Quote:
ORIGINAL: sabersix

IIRC, the HMMWV has a GM diesel.
And that diesel is the most raggedy POS on the planet. With no turbo, that thing ain't got the sack to get out of it's own way. [:@]

Hell, even the civilian Hummers are gutless. We had a loaded out Civvie version over in Asscrackistan and it was almost as gutless as the the mil version.
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Old 03-08-2007, 12:30 PM
handymanherb handymanherb is offline
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Default RE: Lights Dimming

Ok I must have been reading where someone put a four cylinder cummins in one and got confused.

I should have know better, with a cummins in them, it would have been a bad *** machine and everyone would have said, damm them things are fast
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Old 03-08-2007, 02:53 PM
DaDies199 DaDies199 is offline
 
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Default RE: Lights Dimming

yeah the hummers in iraq suck *****...i just recently got out of the marine corps and was in the infantry, and had the pleasure of being assigned an official "driver" for my squad leader, and let me tell you something, with all the weight they add on to those things, that little 6.5l just doesn't do the trick...our battalion commander got a brand new hummer over there equiped with a banks turbo system on it, and that thing flew compared to my hummer i drove...still nothing compared to the cummins though
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Old 03-08-2007, 06:59 PM
RobertDunn RobertDunn is offline
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Default RE: Lights Dimming

I imagine the newer HMMWVs will be coming with either larger engines or those Banks type systems... I do know, if you pull the govener off you can get the things going up to 80-90 mph... (and yes, those are up-armored ones too)
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Old 03-08-2007, 07:21 PM
cumminalong cumminalong is offline
 
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Default RE: Lights Dimming

Quote:
ORIGINAL: handymanherb

Ok I must have been reading where someone put a four cylinder cummins in one and got confused.

I should have know better, with a cummins in them, it would have been a bad *** machine and everyone would have said, damm them things are fast
You're thinking of the vid of the HMMWV that they dropped a Cummins 4BT in.

They chained it to a Super Duty and proceeded to bust the front drive shaft out of the SD. After the HMMWV drug it around for a bit.
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Old 03-08-2007, 07:26 PM
cumminalong cumminalong is offline
 
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Default RE: Lights Dimming

Quote:
ORIGINAL: RobertDunn

I imagine the newer HMMWVs will be coming with either larger engines or those Banks type systems... I do know, if you pull the govener off you can get the things going up to 80-90 mph... (and yes, those are up-armored ones too)
Nope! The fleet Hummers and militaryHMMWV's are still getting the non-turbo'd 6.5L. Only the H1 Apha's are getting the d-max and allison combo.

The only problem with yanking the gov off is that they overheat like a demon. Nowhere near enough cooling capacity.

The only way that they are getting Banks stuff on the HMMWV's is if a unit is footing the bill. The up-armored ones do have some suspension and electrical mods, but not Banks stuff. He musta got the "VIP" version. [:-]
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Old 03-08-2007, 07:41 PM
DaDies199 DaDies199 is offline
 
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Default RE: Lights Dimming

yeah i know, i guess i've never seen one with the banks turbo other than that one...and i agree...the cooling systems do suck on those things...we never got to tinker with them too much so i never had the chance of taking the governor off, but i could imagine they would overheat like a ****...they overheated even with the governor! but then again, i beat the living ba-jesus out of mine too, so i'm guessing that doesn't help matters at all!!
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Old 03-08-2007, 08:02 PM
RobertDunn RobertDunn is offline
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Default RE: Lights Dimming

He was doing convoy escort, so he was having to keep up with the 18-wheelers... no idea on VIP or not.... but he took a pic of the speedometer eh, I just looked again, I think he got it up to about 75mph, not 80 mph....
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Old 03-08-2007, 08:02 PM
 
 
 
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