2001 ls electrical vodoo

[crapeyes]

i have 2001 ls v8-started saying chk charging system then going thru all system status-lights started dimming then fine-finally at stop light in las vegas completley died even jump wouldnt help-towed to auto parts where had to buy new battery from dealer 150.00- was told something draining system got it home volts read right at seemed to stay not go down-now 2 weeks later started same thing and just barley got it home and batts dead- all connections are good and tight-any ideas

[shorod]

If the check charging system light is on, this probably indicates an issue with the alternator, voltage regulator, or wiring rather than a battery. If left in this condition for too long, it can damage the battery, but a weak battery is rarely the cause for the light.

Did the auto parts store that sold you a battery also test the charging system? If not, they should have. Since the situation doesn't seem to be happening 100% of the time, you'll really want to have the system checked when the lights start to dim again. I know, it's difficult to predict when this will occur. If you have a multimeter, keep it in the car with you and next time it acts up, check the battery voltage quickly. This can be done through the 12V power port in the car if you don't think you can get to the battery quickly enough.

You might also want to inspect the serpentine belt and replace it if it looks glazed or cracked.

Pay attention to see if there is anything common that is in use when the problem shows up such as the A/C engaged, rear defroster turned on, seat heaters on, foot on the brake pedal, etc.

-Rod