Electrical issue - JeepForum.com
 
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post #1 of 5 Old 03-10-2007, 09:56 AM Thread Starter
SuB8HaVeN
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1986 CJ7 
 
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Electrical issue

Well, when I cranked up my CJ7 and brought her around to the garage to get some work done and put together the garage/canopy I bought to keep it under, I noticed the voltmeter was going bonkers. It surges between low and 14V, and I also noticed the radio was dimming and cutting on and off. It seems like there is something wrong with the electrical system. I re-wired a few loose connections near the alternator but that didn't help at all. Is this a possible grounding issue? Thanks...


1986 Jeep CJ7 4.2L I6 T176 (restoration in progress)
1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress)
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post #2 of 5 Old 03-10-2007, 05:57 PM
JeromyCJ7
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Quote:
Originally Posted by SuB8HaVeN
Well, when I cranked up my CJ7 and brought her around to the garage to get some work done and put together the garage/canopy I bought to keep it under, I noticed the voltmeter was going bonkers. It surges between low and 14V, and I also noticed the radio was dimming and cutting on and off. It seems like there is something wrong with the electrical system. I re-wired a few loose connections near the alternator but that didn't help at all. Is this a possible grounding issue? Thanks...
I'm having the same problem too man. I think it might be a ground issue. Does your radio cut off when you turn the headligths on?? I've been working on this problem most of the day I've tide up a few loose ends too and still same problem. Tomorrow I'm gonna tackle the radio and see if I have a grounding problem there. If you find anything that fixes your issue let me know, I'll do the same. Good luck. I HATE electrical problems!!
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post #3 of 5 Old 03-10-2007, 07:08 PM
1976cj7
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sounds like a grounding issue, chase the wires and make sure everything is straight
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post #4 of 5 Old 03-11-2007, 08:33 AM Thread Starter
SuB8HaVeN
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Fun, fun. It doesn't seem to matter whether the radio is turned on or not. I'm going to tear it out just in case, because I was going to replace the sound system anyways. I also noticed when I was moving it last night that the flashers come on at random too. Looks like maybe a fuse or grounding problem. The odd thing is that it doesn't matter whether the engine is running or not; it even does it when it's turned off and the key is in the run position???

1986 Jeep CJ7 4.2L I6 T176 (restoration in progress)
1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress)
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post #5 of 5 Old 03-11-2007, 05:39 PM
John Strenk
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Well let's look at the brake lights, if the gound is bad on this and the radio is the only good ground then the power can feed back all the way back to the radio through the dash lights. Since the radio is connected to the volt meter it will cause the meter to turn off or on. Since the brake lights is on an always ON circuit, it can happen at any time you hit the brakes.



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