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.

A: Hello - if the meter reading you included i...

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・Save up to 30%

Get a quote

What others are asking

Q: Lights dim go off

Hi! It sounds like the voltage regulator for the alternator on your Hyundai is having trouble supplying the proper voltage for your system to run. I would suggest testing the alternator and any fuses and relays related to the alternator....

Q: Leaking transmission fluid and knocking

If you are positive that your vehicle is leaking transmission fluid, the knocking sound is likely related. I would recommend having your vehicle inspected for leaks first. Once the leak source is determined, have it repaired by a qualified professional...

Q: A lot of oil is leaking out of the oil filter. It just pours out.

Hello. If oil is leaking from your oil filter, then either the filter is not being installed correctly or the oil filter housing is damaged. Most oil filters use a rubber gasket to seal the oil in the engine. If...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...