Q: Battery keeps getting drained on a 1990 Mazda Miata

asked by on

I have a 1990 Mazda Miata Convertible 16-valve engine. Regardless of the battery being brand new and fully charged, the car drains the battery after 10-20 minutes of driving. When I turn on the lights the car dies. Please help.

The first thing you’d want to do is have your alternator checked. It could be that the alternator is not charging the battery. It sounds pretty typical to me. If it’s not that, you have a really bad wiring harness that is shorted out. But generally on those, it’s the alternator going out. Maybe give the YourMechanic guys a call. If needed, they can replace your alternator for you so that you can get your car back on the road.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Battery keeps getting drained on a 1990 Mazda Miata

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: Throttle Cleaner left in throttle body and I drove off....

If the vehicle is not driving correct after paying for the services then I would recommend taking it back to them as soon as possible as they should take you in and ensure they fix any problems. Especially for a...

Q: Diesel truck broke down. No steering or brakes.

I believe that the towing company is correct. Heavy duty trucks get their power brakes hydraulically instead of a vacuum booster like passenger cars. Heavy duty trucks actually get their assist from the power steering pump fluid. So, if your...

Q: When I turn ignition on no power anywhere. No turnover or crank. Lights don't come on.

Hello there, many faults will cause your 1987 Chevrolet Camaro to not start or have any power. The most common faults are the battery, battery cable, ignition switch, battery terminal, or a wiring harness fault. If the vehicle started properly...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.