Q: Car has parasitic battery drain.

asked by on January 14, 2016

Something is draining my battery when the car is off. There is also a gas leak by the carburetor.

Battery will not hold a charge Inspection $79.99 - $89.99 Get a Quote

I would have a technician such as one from YourMechanic do a parasitic drain test on the battery. This is where you connect a amp meter to the battery and pull out fuses until the drain stops to determine where the drain is coming from. Sometimes, it may be something like a light switch inside the car that is staying on. It also may be a glove box or a trunk light that has a bad switch.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

Fuel gauge and temperature gauge not working.

The fuel gauge not reading properly may be likely related to your fuel sending unit or the gauge in the dash itself. The sending unit is a small float type component inside your fuel tank that measures the level of...

Car starts, turns off, and won't restart again for five minutes.

An engine needs three things to run: fuel, spark and compression. So, your engine is not getting the right combination of these three essentials. One thing that comes to mind on a vintage vehicle such as yours is vacuum leaks....

Was driving and power steering went out. White smoke was coming from my car. I allowed it to cool down but the sensor kept reading

Hi there. It's always best to have a mechanic physically inspect the vehicle to determine what exactly broke on your car. So, anything we list here is just speculation based on what you described in the question. In most cases,...

What does the Charging System light mean on the dash in a 2012 Ford Fusion?

Your car’s Charging system is responsible for everything from powering your radio to operating the spark plugs in the engine. It’s absolutely critical for driving your car. If the Charging System light on the dash comes on (it looks like...

It got really cold the next morning. I went to start my car and my belt will not turn. I drove it the day before the cold no problem.

Hi there. There could be a few things that could be going on. Either the battery was low on a charge or low on water and froze up causing the vehicle not to start up, or when the oil change...

My 2007 Pontiac Grand Prix makes a humming noise when the car is idling but if I turn the steering wheel a little it stops the noise.

Hi there. The humming sound could be the power steering control valve sticking. Check to see if the power steering oil level is correct. Top off the power steering fluid if its low. Also look at the fluid and see...

Grand Am headlights flashing even when car is off. 2004

Hello there. Most of the time, this type of problem is caused by a loose headlight lamp connection, a faulty electrical relay or a problem with the headlight switch itself. If the switch is damaged, it can cause the headlights...

The endurance of a hybrid when the batteries wear out

It depends on the design, but a lot of them are running a Toyota's design. The Fords have Toyota's parts in them, and a lot of GMs run Toyota's design. Generally, those batteries last anywhere from 7 to 10 years,...

Wonky cruise control and rough idle on low gear D

Hello. P0770 is the code for a lock up torque converter shift solenoid malfunction. The lock up torque converter shift solenoid controls the fluid pressure of the torque converter, and the rate and timing at which it locks up. This...

Related articles

All About Car Battery Chargers
Everyone Everyone has experienced a dead car battery from time to time. It’s common occurance, especially in winter, when batteries have to work even harder to get you to where you want to go. Fortunately, there’s a solution. A portable...
How Long Does a Battery Cable Last?
Transferring Transferring the current from the battery to the starter and alternator is the job of the battery cables. Every time you try to start your car, the battery cables will have to deliver the power needed to fire off...
How to Deal With a Car Battery For Long-Term Storage
If If you store your car for the winter, or for other long periods, it’s important to make sure that your car battery is properly cared for. Long term car storage can wreak havoc on your battery. Isn't it okay...