Skip the auto shop - Our mechanics make house calls

Q: Loss all power when driving.

asked by on

Started car and battery and headlight indicator on dash were on.car drove fine not sluggish .went about 5 miles stop at a drive thru didn't stall or acted as if was going to die.dash light Mayb a little dim.cant remember for sure.back on road and about 1000 feet all indicator lights on dash flash bright then start to flicker .car losses power to almost nothing.have gas pedel floored and let up to see if I can get it to move.it is making the sound that happens when running out of gas that sputtering sound but there is 1/2 tank in it .then a sound starts like that hunking sound a lion makes in there throat.im sorry but that is the best description I can think of.no joke a low throat hunking sound.then it dies slight power to keep headlamps and interior lights on up its not turning over.we push it off the road and put in park try to start but sounds now like a died battery that clicking type sound but there is still slight power for lights and inside car lights.

My car has 170000 miles.
My car has an automatic transmission.

What you describe sounds like a charging system failure. If the alternator isn’t working, the car can run on the battery for a period of time, until the battery voltage gets below a certain point, usually around 10.5 volts. After that the electronics will start to go haywire. Your battery is probably marginal as well, as the car would usually operate for a couple of hours without the alternator charging before it starts to fail. I can’t account for the sounds you have described, but I think checking the battery and charging system is in order. You can Contact Your Mechanic to have a qualified technician come to your home or office and check out your car and tell you what needs to be done.

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
  1. Home
  2. Questions
  3. Loss all power when driving.

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: The only way my car will start is if the lights are on

I have seen where some alarms use the head light switch to be turned on to allow the engine to start. This is an aftermarket alarm and would need to be checked by a mechanic like one from YourMechanic to...

Q: Ignition Problem

Hello, thank you for writing in. To better understand this strange issue, it helps to know that the engine receives most of its power from the alternator once the engine has started. When the field to the alternator is not...

Q: My car is slow to accelerate, and it stalls in drive and reverse

This may be related to a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...

Related articles

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...