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Jeep Wrangler YJ
YJ General Discussion
Alternator power draw
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<blockquote data-quote="Gilaguy23" data-source="post: 429497" data-attributes="member: 19498"><p>Curious what comes up on your problem. Ive had/have what Id consider a abnormal parasitic draw on my 91/2.5 YJ. I generally drive it enough the battery is never a issue and the alt charges at 14.3V. I never checked the draw with a DVM though. Around new years I got Covid and for 2 or 3 weeks it sat and the battery died. Got poking around and found a bunch of posts regarding having both your stereo power lines hooked up to a constant hot all the time. What I read is a CD/stereo has a internal relay and unless that "non memory wire" is dead,as in no power at all when key is off, that internal relay gets worn and sticks. So what happens is when the stereo is actually turned off that hung relay causes power to be pulled still supplying the internal amp,CD player motor etc. </p><p> I changed mine back to "memory lead" hot all the time, power on with key like normal I suppose. Cant say Ive had any further problems,however Ive not let it sit for 2 to 3 weeks either since.</p></blockquote><p></p>
[QUOTE="Gilaguy23, post: 429497, member: 19498"] Curious what comes up on your problem. Ive had/have what Id consider a abnormal parasitic draw on my 91/2.5 YJ. I generally drive it enough the battery is never a issue and the alt charges at 14.3V. I never checked the draw with a DVM though. Around new years I got Covid and for 2 or 3 weeks it sat and the battery died. Got poking around and found a bunch of posts regarding having both your stereo power lines hooked up to a constant hot all the time. What I read is a CD/stereo has a internal relay and unless that "non memory wire" is dead,as in no power at all when key is off, that internal relay gets worn and sticks. So what happens is when the stereo is actually turned off that hung relay causes power to be pulled still supplying the internal amp,CD player motor etc. I changed mine back to "memory lead" hot all the time, power on with key like normal I suppose. Cant say Ive had any further problems,however Ive not let it sit for 2 to 3 weeks either since. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Alternator power draw
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