fill and charge,clean connections, load test, starter draw test, alternator full field test, regulator monitoring, parasitic load test and elimination of draws. check for shorted bulbs , inoperative components etc. get real. those predictive testers from china with blinking LED's are estimators not isolators. also check the drive belt is not an issue for the alternator. or mounting issues at the alternator that cause slippage. are there no tech service bulletins pertaining to this???. get a real diagnosis before throwing parts around.
dealerships can determine the cause with equipment, and experienced thought. Factory backed
I saw one of these get 3 alternators put on it.
Then they sent it to GM and it was found to have an issue that required a module. It was not explained exactly how, but an engine management component was discharging the battery.
I hope you dont have GM passlock. that can be a seemingly dead battery issue. It can be rewired to fix it.
3 months later it puked an ignition switch. It took the GM dealer to get this stuff figured out, spaghetti sause wasnt working.
Yeah, till you get real help you are going to face conflicting part issues that may stay unexplained.
And have them do your maintenance service to eliminate dumb stuff. After all that work, there were unexplained chime module concerns that lead to a low fluid level.
A fuel filter every 20K is a very good idea on these.
People are plagueing NHTSA about their pumps and amp draw issues for fuel pump circuit and they never get their filters replaced. It drags on the pump, the pump operates in the fuel thats offered to the consumer but it cant push through dirt forever.
That will draw excessive current at start up. After testing, the connections can have looseness. The pins are aluminum nowadays.These connections must be probed for tests from the reverse side of the connector. There has been found a high fuel sulfur content. This wears the pumps internal parts.
Let the dealer tell you. Or tell NHTSA about it and see if theres feedback on the issue. There has been alot of factory checking that led to the tank and pump are sold by delco as an assembly to stop tampering. If you have tamperers haunting you, you may have to lock and load.
Cheap batteries only last about 2 years anyway. A standard one at least 4 years. A better one about 6 to 8 years.
Thinking something is draining the battery. You would have to have an amp meter to see how much current is flowing with the car off. There is also an usage of current ie clock. Finding what is draining the battery will be a long story and understanding of the electrical system. I would suggest shutting off the stereo manually before turning off the car and see if it continues. The stereo is a common cause.
You most likely have a parasitic drain, ie something is not turning off. Do some simple checks like visor lights, if bad fix or just take the bulb out. Trunk light, back door puddle lights, etc.
Might be a hood switch, door close switch, etc.
I've only had this battery in my car for a couple years now. Recently my car has started dying on me overnight. The first time it died I got it jumped and it was ok for about 2 days and then it died again. I made SURE no lights were left on in or out of the car. My stereo system and everything else shuts off automatically so thats not an issue. I got charged again and drove my vehicle to Autozone to get it inspected. They checked it and said my battery was still good and that my alternator was good too. I made a point to tell the man that I had literally just had my car jumped before I drove there. I asked him if me jumping my car prior to driving there could provide a false "good" reading and he said no. It would still read if my battery was the problem on their little machine. So now I have no idea what it could be I'm completely out of ideas. The man said that since I dont drive my car often that doesn't give my car "enough time" to charge the battery. The thing is, regardless if I drive my car everyday or leave it sitting there for a week without touching it, theres still no reason why my battery shuld be dying on me just because I dont drive it often or long enough. I never had this issue before, so why now? If anyone can help me with this issue that would be greatly appreciated. If you have any further questions about my situation feel free to ask and I will respond. My car is a 2005 Pontiac Grand Prix. Thank you.
