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Electrical 3rd Gen Dodge Ram Electrical Problems and Questions.


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  #1  
Old 07-29-2009, 01:16 PM
jdjackson jdjackson is offline
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Default Battery drain

2002 Dodge Ram 1500 pu, quad, 4.7L.
Suspect I have parasitic battery drain. Starts fine within a few days of use but if longer than a week the battery is dead. I replaced the battery. I am getting a good voltage from battery and alternator is putting out good voltage with truck running. I detached neg battery terminal and put in line a multimeter to try and isolate the circuit at the fuse panel by pulling each fuse and monitoring the meter. There is large amperage thru fuse #51 - "instrument panel lights and hood light" (I don't even see a light anywhere in or under the hood by the way!). If I remove this fuse, the amps go way down. This is one of three fuses that have funny looking wings on it that prevent you from pulling it all the way out. (what are these for anyway? The other 2 are for the airbags). I am assuming this circuit should not be drawing this much amps all the time. I checked to make sure all the lights and everything are turned off. Any suggestions or help much appreciated. Thanks.
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Old 08-19-2009, 10:17 AM
kentucky kentucky is offline
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It sounds like you've isolated a possible culprit. "(I don't even see a light anywhere in or under the hood by the way!). If I remove this fuse, the amps go way down." Possibly corrosion or a dead something in or near the panel lights? A pinched wire? loose ground?
You might try finding where the hood lights supposed to be when equiped with one. Good luck.. sounds like you're on the right track. You might try physically ringing down each wire in that circuits harness with your meter for leagage to ground.
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Old 08-29-2009, 07:30 PM
04ram86 04ram86 is offline
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Default

i have the same problem except battery drains in under 3 hours. 2004 dodge ram 1500 shortbox

i lifted the radio fuse with the wings on it. and that seemed to stop the problem but now i have no radio and no interior lights until the truck is running. makes no sence how it is getting power on the interior lights when truck is on i pulled the fuze eliminating the interior lights and radio. anyone have any ideas to why my battery is draining that fast when that fuse is in. battery is brand new
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Old 08-31-2009, 11:52 AM
kentucky kentucky is offline
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Quote:
Originally Posted by 04ram86 View Post
i have the same problem except battery drains in under 3 hours. 2004 dodge ram 1500 shortbox

i lifted the radio fuse with the wings on it. and that seemed to stop the problem but now i have no radio and no interior lights until the truck is running. makes no sence how it is getting power on the interior lights when truck is on i pulled the fuze eliminating the interior lights and radio. anyone have any ideas to why my battery is draining that fast when that fuse is in. battery is brand new
The operative here looks like " seemed to stop the problem ".... IF it HAS stopped draining your battery, it's seems apparent that the drain is on that leg of the system.
Check your interior lights switches. (dome, doors, emergency lights... etc.

Check for bad grounds or corroded connections on switches for equipment that will work with the key outta the truck. Something is drawing a lot of current for a 3 hour discharge..
BE sure all battery grounds are solid.. to the motor and to the chassis.
Good luck... use patience to isolate one thing at a time.
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