550Doug
Member
- Location
- Southern Ontario
My 2003 Buick Park Avenue has a parasitic draw that I've traced to the ECM by eliminating fuses. However, I understand that there are some items on the car that are not fused and would show the same symptoms. Also, it may be possible that a blown diode in the alternator could be the culprit. In any event, it's been sitting for a week and so when I jumped into it last night it started right up and I picked up a pizza and returned home, a 10 minute job. I noticed the battery volts were reading 13.3 to 13.5v while I was driving. However, when I turned off the car the ignition key would not release from the switch. I left the key there.
Today I went to start the car and there was no power at all. My voltmeter measured 4.5v across the battery terminals.
How can a good Interstate battery (only 11 years old) die so fast? Could this be a possible bad diode in the alternator?
Today I went to start the car and there was no power at all. My voltmeter measured 4.5v across the battery terminals.
How can a good Interstate battery (only 11 years old) die so fast? Could this be a possible bad diode in the alternator?