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Engine stumbling... especially under load

Discussion in '1st Gen Tundras (2000-2006)' started by Kollinowens, May 22, 2020.

  1. May 22, 2020 at 9:25 PM
    #1
    Kollinowens

    Kollinowens [OP] New Member

    Joined:
    May 22, 2020
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    First Name:
    Kollin
    Vehicle:
    2002 silver tundra SR5
    Hey everyone, I’m having some trouble figuring out what the problem is. My 4.7L V8 is stumbling on idle and under heavy load. Trying to alleviate the problem I’ve changed the fuel filter, new spark plugs, boots, and air filter and it still seems to do it, and I can’t find out what the problem is, and It’s throwing no codes. If anyone has had this issue before and found a solution please let me know!!
     
  2. May 22, 2020 at 9:37 PM
    #2
    Hughjanice

    Hughjanice New Member

    Joined:
    Mar 23, 2016
    Member:
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    First Name:
    Hieu
    Vehicle:
    2015 Toyota Tundra CM 4x4
    Two single led light bars behind grille, bak revolverx2, fn 18" wheels, bfg ko2. 46gal transfer flow tank.
    Clean mass air flow sensor, Check engine compression, cylinder leak down test and check fuel pressure. If no problem found, exhaust back pressure test for possible clogged catalytic converters.

    what kind of mileage do you have on the truck?
    When was your last oil change?
     
  3. May 22, 2020 at 10:24 PM
    #3
    Kollinowens

    Kollinowens [OP] New Member

    Joined:
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    Kollin
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    2002 silver tundra SR5
    I got an Oil Change close to a month ago, and the truck has close to 230,000 miles.
     
  4. May 23, 2020 at 5:44 AM
    #4
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

    Joined:
    Apr 29, 2018
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    Fred
    ‘Somewhere’... a State of Mind
    Vehicle:
    2002 Tundra SR5 4WD 4.7L AC Silver Metallica
    Hand Protectors
    Possibly look at a Throttle Body Cleaning and check your Ignition Coils for failure/cracks.
     
  5. May 24, 2020 at 12:05 AM
    #5
    Kollinowens

    Kollinowens [OP] New Member

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    Kollin
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    2002 silver tundra SR5
    Okay, will do. Thank you!
     
  6. May 24, 2020 at 5:16 AM
    #6
    Hooptytrix

    Hooptytrix Squeaky Chicken

    Joined:
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    Dirty South
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    2001 Tundra 4x4 Sold. 2005 Tundra SR5
    Have you done your timing belt?
     
  7. May 24, 2020 at 10:23 AM
    #7
    Kollinowens

    Kollinowens [OP] New Member

    Joined:
    May 22, 2020
    Member:
    #46947
    Messages:
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    Male
    First Name:
    Kollin
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    2002 silver tundra SR5
    My timing belt is on order right now, should be getting it done in the next week or so.
     
    bmf4069 likes this.

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