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Electrical issue maybe ROOM LP FUSE

25K views 8 replies 2 participants last post by  oni888  
the ROOM LP fuse controls all those things that went out. did you have the negative cable removed from the battery and connected the test light between the neg. cable and and the battery terminal? if so, thats the correct way to test for current draw. what is the "IT" that didnt go off when you disconnected your amps? i may be slow to respond as im leaving for rest of afternoon. be patient, someone else may pop in in the meantime with ideas.
 
first i want to verify in my mind that you do in fact have your test light connected in series between the negative battery cable and the negative post on the battery. i stick the probe end of the tester in the bat post itself and use the alligator clip to connect to the negative bat cable. with the ROOM LP fuse pulled out, did you disconnect the amp? if you disconnect stuff with the room fuse in place your light wont go out because of all the things that are connected to it. so, my next question is, do you get a welding spark when you try to connect your negative cable back on the battery(not a weak little blue spark that may make a pop sound)? if no, then your current draw should be about normal and is not discharging the battery. in that case, check your battery voltage, car not running, should be around 12VDC. start vehicle, let it run and voltage should rise to 14VDC. let us know what you find here. DO NOT start pulling wires out.
 
does not sound like you have an abnormal drain on your battery.
1. make sure all connections on the alternator are tight, in the proper location and that none are touching ground anywhere.(pay particular attention to the B+ terminal on the alternator. sometimes they can be loose inside the alternator and flopping around.) 2. make sure alternator belt is in good shape and tight as it can slip under load. 3. remove and clean the battery cables and then remove and clean the engine to frame ground back behind the intake manifold. 4. connect voltmeter, let car run for a while with no loads. voltage should come up to 14 to14.5 VDC. there may be an issue with the alternator's integral voltage regulator. 5. keep in mind these cars seem to be picky about grounds and many an odd occurrence has been fixed by good grounds.
 
i will definitely look over them things and check back in on this post so other people may learn from it if they have the issue thank you very much i really do appreciate it

NP, youre welcome, we are all here to help.:surprise: