Having problems with your 2006 Hummer H3 ?

2006 H3 battery keeps going dead overnight. Battery was replaced last year. Took it to a dealer and they could not find anything wrong.

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

Something is being left on when you shut off the key. fastest way to tell this is to unhook the positive post of your battery and hook up a multimeter between the post and the cable. with the key off the amps should be almost zero (the radio uses a very small amount for memory) also take the battery out and have it load tested.
Repair Help & Product Troubleshooting for 2006 Hummer H3

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