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Tip of the day: disconnect your battery if you're sluggish

Discussion in '2nd Gen. Tacomas (2005-2015)' started by trd09, Aug 9, 2011.

  1. Aug 9, 2011 at 8:06 AM
    #1
    trd09

    trd09 [OP] Well-Known Member

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    4-leaf TSB, 5100s @ 1.75, Flowmaster 40, Undercover Tonneau, K&N drop-in, Nittos, NGK Iridiums, OME N182s
    On the way home from work yesterday (in a humid 90 degree day, AC blasting), I slowed down, then accelerated while turning. The truck barely wanted to downshift. It felt like I had no power whatsoever. No warning lights or anything.

    Monitored for the rest of the commute. Same deal: truck is very slow to downshift and feels like a dog.

    I disconnected the negative terminal for 30 min, reconnected it, then went for a ride around the block and made a highway run. WOW! Truck is noticeably snappier, even before the sluggish issue.

    Interested in seeing an impact on mpg. But performance is noticeably better.
     
  2. Aug 9, 2011 at 8:12 AM
    #2
    colder

    colder Well-Known Member

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    Didn't it used to be that disconnecting the battery for a long period, leaving a car totally without electricity, would clear codes and/or cause the ECU to have to "re-learn" the engine?
     
  3. Aug 9, 2011 at 8:15 AM
    #3
    trd09

    trd09 [OP] Well-Known Member

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    4-leaf TSB, 5100s @ 1.75, Flowmaster 40, Undercover Tonneau, K&N drop-in, Nittos, NGK Iridiums, OME N182s
    That's what I was going for.

    My guess is my sluggishness was due to ECU / tranny logic that was thrown off by something.
     
  4. Aug 9, 2011 at 8:22 AM
    #4
    plurpimpin

    plurpimpin Well-Known Member

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    yeah that's how I got rid of my check engine light on my camry before trading it in a few weeks ago
     
  5. Aug 9, 2011 at 11:51 AM
    #5
    SampleFool

    SampleFool Three Percenter

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    I do the same thing when my truck starts then stalls right away. Just disconnect negative for 5 mins and starts like a queen. Only been twice but nothing was wrong with fuel,air or spark so ecu is my thought at the moment.
     
  6. Aug 9, 2011 at 11:56 AM
    #6
    jcgarvey

    jcgarvey Well-Known Member

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    Could it also be a bad connection to the battery terminal? Disconnecting from the terminal and reconnecting could have given you better contact resulting in better grounding.
     
  7. Aug 9, 2011 at 12:50 PM
    #7
    RichardTRD

    RichardTRD Well-Known Member

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    If it's a on-going issue there's something wrong I would think.
     
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