1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Rough Drive & Low Idle After Installing New Battery 2006 4-Runner

Discussion in '4th Gen 4Runners (2003-2009)' started by Kraycik, Mar 14, 2019.

  1. Mar 14, 2019 at 5:38 AM
    #1
    Kraycik

    Kraycik [OP] New Member

    Joined:
    Mar 14, 2019
    Member:
    #9170
    Messages:
    1
    Gender:
    Male
    Vehicle:
    2006 Toyota 4-Runner V8 LTD
    Good Morning Folks- I don't know if anyone has experienced this before, but I recently installed a new battery in my 2006 4-Runner V8 LTD. I had it installed at a shop that I had been working with for many years. When I picked it up, the idle was rough, and actually cut out on me a few times because the idle dropped too low. It has since rebounded BUT still the idle is low (500) AND the engine idles louder and drives rough.(No pick-up)
    I know my 4-Runner, and this just doesn't feel right.

    I was planning to re-install the battery, and wanted to know if Toyota has published any "Drive-Ability Learning Steps" or a set of procedures for doing this so that the vehicle can re-learn?

    I don't know what else could be causing this issue. It all goes back to the day the battery was installed (Probably Improperly)

    My 4-Runner is pushing 150k miles, but it's a 4th Gen V8 and other than a slight rip in driver's seat, the vehicle is in great shape. I'm hoping it's something that can be corrected inexpensively.

    Thanks for reading and I look forward to your feedback.
     
    HoBoDanny likes this.
  2. Mar 15, 2019 at 3:28 PM
    #2
    SlvrSlug

    SlvrSlug New Member

    Joined:
    Jun 3, 2018
    Member:
    #6172
    Messages:
    649
    Gender:
    Male
    First Name:
    John
    San Diego, Ca.
    Vehicle:
    2017 4-Runner SR-5
    Slightly modded
    Welcome to the forum.
     
  3. Mar 15, 2019 at 6:56 PM
    #3
    HoBoDanny

    HoBoDanny Dude...

    Joined:
    Feb 5, 2019
    Member:
    #8697
    Messages:
    739
    Gender:
    Male
    First Name:
    Daniel
    Kentucky
    Vehicle:
    2004 SR5 V6 4WD 4Runner
    RCI Skid Plate CBI Ditch Light Brackets Hankook DynaPro ATM RF10 265 70R17 113T Tires TPMS Bypass Mod Hydrocarbon Filter Removed Merca decal 2” leveling kit front only Black headlights
    Welcome! Take it back to the place that installed the battery if it was good before they worked on it, it should be good after. If it’s not that falls on them to fix it.
     
  4. Mar 15, 2019 at 11:06 PM
    #4
    4runningMan

    4runningMan New Member

    Joined:
    Sep 23, 2018
    Member:
    #7255
    Messages:
    706
    If the MAF censor is in need of a cleaning and the ecu got reset with the battery being unhooked... the ecu could be in learning mode and is struggling due to the maf censor?

    Just a guess. Can anyone comment on this guess?
     
  5. Mar 15, 2019 at 11:34 PM
    #5
    2ndgenlivesmatter9420

    2ndgenlivesmatter9420 New Member

    Joined:
    Mar 13, 2019
    Member:
    #9168
    Messages:
    16
    Gender:
    Male
    First Name:
    Doug
    Norcal
    Vehicle:
    1994 Green 4runner
    Alot of Toyotas tweak out if you change the battery without a saver on the obd2 port. The computer needs to relearn the idle. What works for me is to let it run with the AC on while idling in gear for about 5 minutes, if that doesn't work take it back to the shop.
     
    4runningMan likes this.

Products Discussed in

To Top