Skip the auto shop - Our mechanics make house calls

Q: Car not running properly after jump

asked by on

I had to jumpstart my car and now it is not running properly.

When your vehicle loses battery power, the engine control systems also lose power. When this happens, the computer that controls the engine loses its memory of certain adaptations, such as idle speed, fuel mixture, throttle position, and transmission shift points. The vehicle will "re-learn" these adaptations over time. If you still have drivability issues you may need to have a qualified technician, like one from YourMechanic, manually set the adaptations, or diagnose other issues that may have been derived from the power loss.

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!
  1. Home
  2. Questions
  3. Car not running properly after jump

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: Trouble accelerating when the fuel gauge says 1/2.

Hi there. If there is a evaporative leak on the fuel system, then there could be a problem with the fuel delivery when the system has too much vapors. Check the purge valve on the fuel charcoal canister and see...

Q: I get a vibration in my 2006 chevy trailblazer when I accelerate

If you are getting a front end vibration during acceleration it is possible that you could have loose suspension parts. Suspension parts such as ball joints, tie rod ends, and sway bar links often develop free play after being worn...

Q: Car won't start even after jumpstart

The cable and its starters will need to be checked to see if power is getting from the battery to the starter. If it is, then the starter should be checked to see if it is getting a start signal...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...