Skip the auto shop - Our mechanics make house calls

Q: Car was weak starting and would barely go once I tried to drive it.

asked by on

When I started my car this morning it was very weak sounding and took a sec to turn over.... I let it run for a bit before I turned it off.... This afternoon I started it back with the same weakness, like it would hardly turn over.... When I pulled onto the road and gave it some gas it didn't seem t want to go... It just barely went, so I turned around and parked. What could this be?

My car has 151000 miles.
My car has an automatic transmission.

It sounds like your battery or your alternator is getting weak. When the vehicle starts slowly and seems to have trouble, this is usually related to a dying or dead battery.

The alternators job is to charge the battery while the engine is running. It is possible that your alternator is not charging your battery and that is why your vehicle does not accelerate very well when you are driving.

I would recommend enlisting the assistance of a qualified professional, like one from YourMechanic, to diagnose your loss of power firsthand. They will be able to come to you and test the battery and alternator using a digital multimeter to determine if the alternator is producing the correct charging voltage. If not, the alternator or battery or both will likely need to be replaced in order to resolve this issue.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Acts like the battery is low and when i try to start it, lights flicker and tries to turn over

It is very possible that your battery could be completely finished off. I would recommend disconnecting the sound system and installing a new battery in the vehicle to see how the vehicle performs. It is certainly possible that the sound...

Q: Electrical system problems on 2007 Buick Rainier

This was a common issue in many GM vehicles that is typically caused by a short in the system that controls these features. Tracing the short can be very time consuming and difficult to track down. If you would like...

Q: Replace accumulatet

It is not a good idea to drive with the A/C system "open" by removing a component. The entire system can get contaminated. Unless the accumulator is physically damaged, it would be best to just leave it in place until...

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...