JpW004 Posted June 1, 2019 Posted June 1, 2019 hello, my Z has started to have a drain on the battery, being dead in a couple of days. And now after jumping it a few times over the past few weeks, the speedo is going crazy, and the odometer is increasing while i'm stationary , engine running! Any ideas? I am trying to find the drain on the battery with a volt meter, (probably aftermarket stereo) but not had any luck so far. can't see any blown fuses either. Its doing my pickle in! Quote
Rob350 Posted June 1, 2019 Posted June 1, 2019 This happened to mine, I found a drain coming from my stereo, never ended up doing anything about it just made sure I started it within every 2 days. I'd checked the alternator was charging and battery was good, and they were. Then after a month or two my alternator went caput. Changed the alternator for a 2nd hand one off zman and everything was good after. My car would last a good 2weeks before my stereo drain meant I couldnt start it. So I think when my alternator was on it's way out it wasnt charging the battery to max and was causing funky problems. Quote
JpW004 Posted June 1, 2019 Author Posted June 1, 2019 thanks Rob, I will keep an eye on the alternator. would that mess up the speedo and odo do you think? I did over 20 miles sitting my drive this morning charging the battery! Quote
JpW004 Posted June 2, 2019 Author Posted June 2, 2019 Ok new battery installed and all is well again! Old battery had 10v and hardly any Amps. Thanks to Halfords 4 year garantee I got a shiny new battery for free. Quote
demoniality Posted June 20, 2019 Posted June 20, 2019 yeah I've seen low batt voltage or health wreak havoc on mechanical gauges a few times on different cars Quote
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