1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

need help! please!

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Old 05-28-2011, 07:21 PM
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i may have pinpointed myelectrical draw. the previous owner had the hood light wire unplugged form the light and i opened the hood and tryed it. the light is good and i thought to close the hood and see if the light stays on. the light stayed on when the hood fully latched. that why it is unplugged! is it possible a bad sensor could keep power sent to it and is killing my batteris? please respong im desperite for an answer!!!
 
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Old 05-28-2011, 08:34 PM
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If it was already unplugged and the
Draw was present then it isn't the hood light; if you plugged it back in and the draw developed than it's a possibility. Have you measured the amount of draw the truck has? (unhook the positive terminal and put an amp meter in series) pull fuses until your amp reading drops and you have then isolated which circuit is causing the draw.


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Old 05-28-2011, 11:39 PM
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i havent yet found out the amount of draw yet but will tomorrow and it was already unplugged
 
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Old 05-29-2011, 01:34 AM
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without the light it should have been an open circuit so it shouldnt draw and power... right?
 
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Old 05-29-2011, 09:59 AM
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Originally Posted by cumminskid92
without the light it should have been an open circuit so it shouldnt draw and power... right?
right; which is why i dont believe it was the hood light. do you have a brake controller? i know my truck sat pretty much all winter and the brake controller killed my battery. do you have anything aftermarket that is hooked to a constant hot? oh and the hood light switch is a mercury switch built into the light itself.
 
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Old 05-29-2011, 10:02 AM
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ok im gonna go out in a few and try the test with the meter and pull fuses but no nothing after market except the p.o installed cab lights and theyre on a sepereate switch i was think false wiring on those to but gotta pull fuses.
 
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Old 05-29-2011, 11:52 PM
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this may be kinda stupid but my brake lights were staying on and and iwasnt noticing, also on afriends truck i found a dirty battery case that was conductive and draining the battery
 
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Old 05-30-2011, 02:01 AM
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what do you mean dirty battery case? is it the mounting spot the plate on bottom? and i found that my cigarette lighter draws 8 volts so would i be able to just kkeep the fuse out all together??
 
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Old 05-30-2011, 07:25 PM
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it had a greasy type of film on it. I found it by using volt meter one lead to plastic case of battery one to ground , his read 9.5 volts to ground. was enough to kill battery .
 
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Old 05-31-2011, 07:04 AM
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Originally Posted by jdbigblue12v
what do you mean dirty battery case? is it the mounting spot the plate on bottom? and i found that my cigarette lighter draws 8 volts so would i be able to just kkeep the fuse out all together??
Yes.

Originally Posted by crazy clem
it had a greasy type of film on it. I found it by using volt meter one lead to plastic case of battery one to ground , his read 9.5 volts to ground. was enough to kill battery .
That's a ridiculously HUGE draw.
 



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