Q: Battery jumped, but idling, missing, goes up/down

asked by on

Since my battery died several weeks ago, it doesn’t work well. It idles, goes up/down, & has a miss in it. When my mechanic jumped the battery, he reset the computer and codes because the ‘check engine light’ had been on. For a while it will run okay, but then go back to the idling, missing, and up/down. Could the plugs/coils or the emissions have anything to do with the problem?

Hi there. This happens frequently on this vehicle when there is a loss of power. I usually start by checking the fuses to make sure that none of them failed during the jump. If they are fine then I scan the computer for codes to see why the check engine light is on. That will give me most of the information that I need. It may be as simple as the throttle body needing to be cleaned. It resets when the battery loses power which makes it hard for the computer to control the idle of the vehicle. If you want to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the source of the issues.

Was this answer helpful?
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. Battery jumped, but idling, missing, goes up/down

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: 2013 explorer sunroof won't close. The fuse is ok, no motor noise

You may have a defective sunroof motor or the track is binding but you should have the body computer scanned to see if the sunroof motor is being activated when switch is pushed. You may have a defective switch. ...

Q: Vibration in the car - 2003 Dodge Neon

Hello. When issues get worse after a repair, always double check the work that was done. If you check that off right away, then you should look at why the engine is shaking so bad. This is typically due to...

Q: Q: How do I calibrate the compass?

The Compass will help you navigate. If the Compass can be calibrated at any time as long as all electrical accessories are off, the doors are closed, and you are in an open area away from steel structures. From there...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.