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03 tundra stalls after replacing battery terminal

Discussion in '1st Gen Tundras (2000-2006)' started by Rrworker, Apr 14, 2018.

  1. Dec 4, 2018 at 7:21 PM
    #31
    Rrworker

    Rrworker [OP] New Member

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    Sorry for not replying sooner but i cleaned up the sensor with some cleaner that I bought ,drove it about 30 miles to an ex toyota technician and it didn't stall, however the idle was low and he cleaned up the throttle body and idles like it should and no stalling now. He explained that disconnecting the terminal and then reconnecting it might have caused it to reset but at the poor running mode.
     
    Last edited: Dec 5, 2018
    NUDRAT and Jackson like this.
  2. Dec 9, 2018 at 6:59 PM
    #32
    Lost Highway

    Lost Highway New Member

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    When ever you disconnect the battery your onboard computer looses the memory it has collected over time and that affects your idle to. Your truck should correct its running habits within a day of so, any time you disconnect and reconnect your battery.
     
  3. Feb 9, 2022 at 2:51 PM
    #33
    daybreak_dawn

    daybreak_dawn New Member

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    Old thread but looks as if the correct answer needs to be here for others. Believe it or not all you have to do is get it on the freeway and turn the heater all the way on max, 60 mph for 10 min. That's it! Just make sure you have gas in the thing and it's back to running like a champ.
     
  4. Feb 9, 2022 at 5:32 PM
    #34
    KNABORES

    KNABORES Sarcasm incoming

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    Holy thread revival Batman!

    Welcome? and were gonna need you to pee in a cup.

     
  5. Feb 9, 2022 at 5:38 PM
    #35
    Mobeyk

    Mobeyk New Member

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    Id always clean up your negative post too. Check the connection to the chassis and engine block for good contact. A lot off times a bad ground can cause problems too.
     
  6. Feb 10, 2022 at 4:49 AM
    #36
    bmf4069

    bmf4069 Yup, that's car parts in a dishwasher

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    images (5).jpg
     
    N84434 and dinosaur like this.
  7. Feb 11, 2022 at 2:54 PM
    #37
    N84434

    N84434 In the Frozen Tundra

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    You must have this meme on speed dial! :rofl::yes:
     
    bmf4069[QUOTED] likes this.
  8. Jan 23, 2023 at 3:17 PM
    #38
    Icepuddle

    Icepuddle New Member

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    Did this and cleaned the MAF after having a dead battery and low idle & stalling, it worked!
    Thank you
     
    bmf4069 and FrenchToasty like this.
  9. Mar 7, 2023 at 2:45 PM
    #39
    BattleYota

    BattleYota New Member

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    So this is a thing?
    Truck was dead, no power. I took the positive off for about a minute or two. Turned it on and it has very low idle. If what you yall are saying is true, the computer needs to "re-learn"?
     
  10. Mar 7, 2023 at 2:59 PM
    #40
    shifty`

    shifty` Is the Gila Copter a love machine?

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    Yes. Any time the battery is off for more than 5-10 minutes, the ECM will start a new learning cycle. At least, in the 1st gens. Because this thread is in the 1st Gen forum. I can't speak to your 2012 Tundra.

    Edit: If you are you using the search feature to find stuff, if you need it to be generation-specific, go to that generational sub-forum and use search in the top-right corner, and be sure to fill the checkbox for "Search this forum only"
     
  11. Mar 7, 2023 at 3:02 PM
    #41
    FrenchToasty

    FrenchToasty The Desert rat, 6 lug enthusiast

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    Our 2010 4runner does it, but falls flat on its face the first try, then second startup it runs fine
     

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