Skip the auto shop - Our mechanics make house calls

Q: Electrical shorts turning the engine off.

asked by on

when I use the power windows, the stereo will cut off. other times, with the AC, radio and engine running pushing the window buttons will dim the electrical system but nothing else. weirdest issue is with AC, radio and engine running, when I turn on the headlights, it kills the engine. checked alternator symptoms but they don't match the problems I'm having. headlights are bright and all lighting appears normal.

My car has 215500 miles.
My car has an automatic transmission.

A: Hello. It sounds like there is a serious co...

Hello. It sounds like there is a serious connection issue going on. Most of the time this is caused by a bad alternator. It can also be caused by a bad negative battery terminal connection or a failing positive battery cable. I usually test the battery cables first to see if they have high internal resistance and to make sure that they have good connections. If they are fine then I load test the alternator. If that is not the issue either then a voltage meter will need to be used to try and find where the voltage issue lies. If you need to have this electrical issue fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the electrical system.

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

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: Tire rotation for all-wheel drive and low profile tires - 2015 Infiniti Q50 Sport

Hello. The recommendation for tire rotation is every 7,500 miles. I would simply rotate them at every oil change. Being that it is all-wheel drive, you need to keep up on this as you do not want much variation in...

Q: Can i fit a mitsubishi v6 into my hylux?

I would recommend searching around an online forum to see if anything like this has been done before. You could start with a google search for 1995 Toyota 4runner engine swap. This will likely lead you to multiple sources of...

Q: Anti theft problem

Rarely will pulling a fuse disable an anti-theft system. If it were that easy, thieves would figure that out quickly and more cars would be stolen. Fortunately, most factory alarms are usually fairly simple to diagnose but very difficult to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...