1999 GM Yukon
Engine size = 5.7L
Done to repair = replaced battery, checked alternator on and off
vehicle, at auto zone, cleaned battery cables, put digital amp probe on
battery cables, saw no draw.
tip/donation yes
tech = MW
question = My battery goes dead after setting with no apparent reason.
Truck is not driven every day, but seems to die after just a few
days.
MW:
Thank you for the tip/donation.
If the battery goes dead after sitting for a few days, and battery is good/new,
then there must be a parasitic draw. Max draw rule of thumb is 30-40 milliamps.
Assuming you have checked the draw properly, a faulty module can be hard to
catch. They can show no draw, then have a draw, then show no draw. Best way
to check is to have a DVOM in-line with the negative battery cable on milliamp
scale. Use the record function. This will record highs and lows over a long
period of time.
Removing fuses 1 at a time to isolate the circuit that has the draw, but you will
have to catch it when it has a draw. PCM, 4 w/drve module, radio, are some
areas that can give this problem. This is assuming the truck has no aftermarket
accessories. IE- alarm, radio or amplifier, remote starter, etc as these can all
draw from the battery.
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Engine size = 5.7L
Done to repair = replaced battery, checked alternator on and off
vehicle, at auto zone, cleaned battery cables, put digital amp probe on
battery cables, saw no draw.
tip/donation yes
tech = MW
question = My battery goes dead after setting with no apparent reason.
Truck is not driven every day, but seems to die after just a few
days.
MW:
Thank you for the tip/donation.
If the battery goes dead after sitting for a few days, and battery is good/new,
then there must be a parasitic draw. Max draw rule of thumb is 30-40 milliamps.
Assuming you have checked the draw properly, a faulty module can be hard to
catch. They can show no draw, then have a draw, then show no draw. Best way
to check is to have a DVOM in-line with the negative battery cable on milliamp
scale. Use the record function. This will record highs and lows over a long
period of time.
Removing fuses 1 at a time to isolate the circuit that has the draw, but you will
have to catch it when it has a draw. PCM, 4 w/drve module, radio, are some
areas that can give this problem. This is assuming the truck has no aftermarket
accessories. IE- alarm, radio or amplifier, remote starter, etc as these can all
draw from the battery.
Back
