New battery problems

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Thread: New battery problems

  1. #1
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    New battery problems

    Has anyone experience their IQ running bad after installing a new battery? - idle rpm was lower than usual, felt like it was going to die, gas pedal felt mushy ?

    I purchased a Duralast Gold Battery 51

    Was I supposed to do something after installation ?

    Checked terminals- were tight and it didn't take me more than 30 minutes to swap the battery...

    I read online about cars having a memory and sometime it just needs to be driven for 20 minutes?

    Thought about buying Optima yellow cap battery .... any thoughts

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  3. #2
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    I just recently replaced my good 51 battery with a 46B24R and nothing unusual. (I also frequently let the car sit with the negative cable disconnected for many days. It runs fine whenever I reconnect it. I do torque to 5.4 Nm as per instructions for + and - side.

    I say unlikely to be a battery issue. For good measure if you have a multimeter measure voltage at the battery terminals engine off and engine on. (I've read about people saying sometimes you get an old battery from the store that is not fully charged. While engine running will show if alternator is working).

    Sent from my moto g(7) power using Tapatalk
    Last edited by jzchen; 10-09-2020 at 01:08 AM.

  4. #3
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    thanks for the response!

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  6. #4
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    Make sure you have not disconnected something by accident and make sure battery terminals are tight. Disconnected mass airflow sensor can make it run rough.


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  7. #5
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    Quote Originally Posted by maksym View Post
    Make sure you have not disconnected something by accident and make sure battery terminals are tight. Disconnected mass airflow sensor can make it run rough.


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    That's a good note to consider. What was the problem you encountered that convinced you to change the battery in the first place? Maybe it was something else...

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  8. #6
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    Update

    I decided to replace my battery because my tire shop performed a battery test and it had a 25% life on it.

    Thought it be good idea to replace it before it dies on me in the future.

    After installing the original battery it ran bad but after a few minutes it ran normal again.

    Maybe the new batteries were not charged?
    Last edited by IRODGZ88; 10-09-2020 at 10:44 AM.

  9. #7
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    Quote Originally Posted by IRODGZ88 View Post
    Update

    I decided to replace my battery because my tire shop performed a battery test and it had a 25% life on it.

    Though it was a good idea to replace it before it dies on me in the future.

    After installing the original battery it ran bad but after a few minutes it ran like normal.

    Maybe it the new batteries were not charged?
    Empty batter would prevent the car from starting, but once started - it should not affect how the car runs. You can take the new battery back to the place that sold it or autozone/ advance autoparts. They can test and fully charge it for free. Another possibility is your alternator is bad. Once the car is running- check the voltage on the terminals. It should be around 14v.


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  10. #8
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    Regarding memory- there’s indeed memory in the computer. It allows the computer to adjust to degraded performance as parts age. You might have lost that, but it should relearn all of that after a drive or two. With that said, I’m still on my original battery. I have installed one of these lever-type battery disconnects and keep the battery disconnected for weeks. No problems or rough driving to speak of.


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  11. #9
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    I will check on this and let you guys know

  12. #10
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    Yes,

    I am skeptical.

    Maybe I will try an Optima battery instead.

    Quote Originally Posted by maksym View Post
    Regarding memory- there’s indeed memory in the computer. It allows the computer to adjust to degraded performance as parts age. You might have lost that, but it should relearn all of that after a drive or two. With that said, I’m still on my original battery. I have installed one of these lever-type battery disconnects and keep the battery disconnected for weeks. No problems or rough driving to speak of.


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  13. #11
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    I too replaced the battery with an Interstate and no issue at all. As other stated, once the car is running, it draws power from the alternator. Although it is not recommended, you can actually disconnect the battery and the car will run. A good alternator will supply power to operate the car and charge the battery at the same time.

    You can pull the codes from the computer if it run bad again. The codes should give you some idea what the issues are.

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