Skip the auto shop - Our mechanics make house calls

Q: Parasitic draw 1983 Chevrolet Monte Carlo

asked by on

I have an 83 monte carlo. Something keeps,kiklin my battery. On my 3rd battery in 3 months. 2 weeks ago i changed the battery and alternator. A couple days ago my battery was dead. Jumped it off and now it's fine. Checked for a,parasitic draw, my meter read .55_.56. Is this good or bad? Thanks.

My car has 66000 miles.
My car has an automatic transmission.

Hello - if the meter reading you included is .55-.56 amps (continuously), YES, that is a large parasitic load, and confirms why your battery is going flat quickly. This problem can be diagnosed by connecting an ammeter to the positive (red) battery cable as you have done, observe the current drain (likely less than 1 amp as you observed), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. Once the faulty circuit is identified, you then diagnose each electrical component on that circuit for a fault. If you would like help with this process, I would recommend an electrical system inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Various lights as well as radio don't work anymore

The first thing I would check is under the hood and under the dash for signs that a mouse did not get in there and make a home. Mice will eat the outer covering off of the wires and other...

Q: Brake lights don't always work

It sounds like you are having an issue with your brake light on/off switch. The switch is located under the dash high on the brake pedal bar. Sometimes these switches just get pushed out of place and need to be...

Q: Vehicle dying despite parts replacement

If by "dying" you mean you no longer have electrical power, you could have an excessive draw when the car is off that is draining the battery. The problem could also be with the wiring from the battery to the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...