another dead battery problem...Please help before I rip my hair out :(
07-30-2011, 05:44 PM
#1
Thread Starter
Join Date: Jul 2011
Location: TX
Posts: 1
another dead battery problem...Please help before I rip my hair out :(
Hope this doesnt get too long. And I'm not going to have voltage readings etc...kinda lost here.
A few weeks ago went out to a dead car. No signs of life. Got a jump, headed to work, probably had three more starts till... next day wont start, clicking, cd going crazy, wont take jump. Took battery to AutoZone, they say need a new battery. Put it in, starts right up. A few more starts, next day dead. Clicking, cd going crazy. Wont take jump. Friend says probably alternator, put battery on charger for maybe 10min starts right up. Run up to Auto Zone, tested alternator and starter with car running, say happy with alternator reading, 90% sure it's the starter. Take starter out, tested out of car at AZ, they say it failed. Put in new starter, starts right up. Maybe 3 days later, dead. Different AZ says needs new alternator. Took it to a shop I have used, they say alternator tests good. Postive battery cable was loose, tightened. Charged battery, few days dead. Took it to dealer, battery, alternator, drain test all good. No codes, no lights on dash. Battery gauge in car always reads the same (2/3 to the H). Charge battery at night, take it off of charger before bed, next day battery has lost some charge. 09 conv. never had a problem driving at night, top up and down, lights strong.Car is in TX, been REALLY hot. Seems I've had a couple of times rough idle, thought it might die. Especially after I picked up from the dealer. Reading about Shaker draining battery, would this not show in drain test? Sorry for the long post
A few weeks ago went out to a dead car. No signs of life. Got a jump, headed to work, probably had three more starts till... next day wont start, clicking, cd going crazy, wont take jump. Took battery to AutoZone, they say need a new battery. Put it in, starts right up. A few more starts, next day dead. Clicking, cd going crazy. Wont take jump. Friend says probably alternator, put battery on charger for maybe 10min starts right up. Run up to Auto Zone, tested alternator and starter with car running, say happy with alternator reading, 90% sure it's the starter. Take starter out, tested out of car at AZ, they say it failed. Put in new starter, starts right up. Maybe 3 days later, dead. Different AZ says needs new alternator. Took it to a shop I have used, they say alternator tests good. Postive battery cable was loose, tightened. Charged battery, few days dead. Took it to dealer, battery, alternator, drain test all good. No codes, no lights on dash. Battery gauge in car always reads the same (2/3 to the H). Charge battery at night, take it off of charger before bed, next day battery has lost some charge. 09 conv. never had a problem driving at night, top up and down, lights strong.Car is in TX, been REALLY hot. Seems I've had a couple of times rough idle, thought it might die. Especially after I picked up from the dealer. Reading about Shaker draining battery, would this not show in drain test? Sorry for the long post
07-30-2011, 06:47 PM
#2
6th Gear Member
These S197's are notorious for battery/alternator issues. I'd have the alternator load tested again somewhere else.
The Shaker on the older models would drain the battery if the system was left on when you turned off the ignition. But that was supposed to have been resolved in '07 or '08. Something is certainly draining the battery and I find it hard to believe that it doesn't show up on their test. The typical parasitic draw is in the milliamp range; not enough to kill a battery overnite.
The Shaker on the older models would drain the battery if the system was left on when you turned off the ignition. But that was supposed to have been resolved in '07 or '08. Something is certainly draining the battery and I find it hard to believe that it doesn't show up on their test. The typical parasitic draw is in the milliamp range; not enough to kill a battery overnite.
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