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Rev drop at idle when warm.

Discussion in '1st Gen. Tacomas (1995-2004)' started by Sleep, Oct 21, 2023.

  1. Oct 21, 2023 at 12:53 PM
    #1
    Sleep

    #1
    Sleep [OP] Member

    Joined:
    Nov 5, 2021
    Member:
    #381433
    Messages:
    24
    Gender:
    Male
    Vehicle:
    1996 Tacoma
    2.5" lift front and rear Pacesetter Shorty headers and low restriction muffler
    Hello. 1996 2.7l

    When my truck is warm and I have to stop at a stoplight, after about 20 seconds the revs drop suddenly a few hundred rpm and then pick back up again right away, this repeats every 5-10 seconds afterwards, it causes the whole truck to shake a bit.
    This only seems to happen when the truck is warm, in drive, foot on the brake.

    This caused the truck to stall one time as I hit the gas just as the revs were dropping.

    Can’t figure out what the problem is.
     
    Sleep, Oct 21, 2023
    #1
  2. Oct 21, 2023 at 5:19 PM
    #2
    tacoman2001$

    #2
    tacoman2001$ Well-Known Member

    Joined:
    Sep 23, 2022
    Member:
    #406478
    Messages:
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    Have you tried cleaning the IAC.
     
    tacoman2001$, Oct 21, 2023
    #2
  3. Oct 21, 2023 at 5:19 PM
    #3
    0xDEADBEEF

    #3
    0xDEADBEEF Swaying to the Symphony of Destruction

    Joined:
    Mar 2, 2019
    Member:
    #285037
    Messages:
    19,842
    Vehicle:
    2000 reg cab 4x4 flatbed MT
    Any codes?
     
    0xDEADBEEF, Oct 21, 2023
    #3
  4. Oct 21, 2023 at 8:41 PM
    #4
    Sleep

    #4
    Sleep [OP] Member

    Joined:
    Nov 5, 2021
    Member:
    #381433
    Messages:
    24
    Gender:
    Male
    Vehicle:
    1996 Tacoma
    2.5" lift front and rear Pacesetter Shorty headers and low restriction muffler
    I have not, I will give that a try. Thanks!
     
    Sleep, Oct 21, 2023
    #4
  5. Oct 21, 2023 at 8:42 PM
    #5
    Sleep

    #5
    Sleep [OP] Member

    Joined:
    Nov 5, 2021
    Member:
    #381433
    Messages:
    24
    Gender:
    Male
    Vehicle:
    1996 Tacoma
    2.5" lift front and rear Pacesetter Shorty headers and low restriction muffler
    No codes. The truck runs very well otherwise.
     
    Sleep, Oct 21, 2023
    #5

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