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Throttle Body Cleaning

Discussion in '1st Gen Tundras (2000-2006)' started by skeeter1949, Jun 27, 2020.

  1. Jun 27, 2020 at 10:31 AM
    #1
    skeeter1949

    skeeter1949 [OP] New Member

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    My 2003 4.7 Tundra has just 96,000 miles, but sat for quite some time before I acquired it. I had the plastic piping from the throttle body to the air filter box off recently, and noticed the blade of the TB was dirty. My question, should I remove the TB and thoroughly clean both inside/outside the blades, as well as the neck of the intake, or will just spraying the outside of the tb with cleaner be adequate.
     
  2. Jun 27, 2020 at 11:39 AM
    #2
    Professional Hand Model

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

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    You should use Throttle Body Cleaner only. Spray it on a rag or tooth brush and clean it that way. Do not spray the cleaner on the butter fly into the TB. Depending on the dirtiness should take about 20 minutes. Grab some MAF Sensor Cleaner and do your MAF. Check/replace (cheap) your PCV Valve. All simple stuff that makes your truck run better.
     
    tvpierce and YardBird like this.
  3. Jun 27, 2020 at 12:48 PM
    #3
    YardBird

    YardBird New Member

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    This fellow took it to the limit. I suspect the job can be performed with the TB in place on the engine.
    Hope this helps . . .
     
  4. Jun 27, 2020 at 1:07 PM
    #4
    Professional Hand Model

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

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    Yep. Clean the TB right in place. No need to remove.
     
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  5. Jul 5, 2020 at 12:55 PM
    #5
    dguzzi

    dguzzi New Member

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    Would there be obvious reasons for this? I'm trying to track down a problem similar to a plugging fuel filter, but it clears and runs fine, then returns...
     
  6. Jul 5, 2020 at 1:32 PM
    #6
    Professional Hand Model

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

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    Yes. The reason is that the gunk builds up on the TB Plate and blocks/sticks the plate in place (at idle or slow speeds) when coming to a stop making the engine shut off or sputter. Your engine will run better when its clean, as well. Tighten up your throttle cable while you are there.

    This may not fix your particular problem, but it answers your question.
     
  7. Jul 5, 2020 at 1:34 PM
    #7
    dguzzi

    dguzzi New Member

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    Sure does, Thank you!! I'll add that to my list-o-things to do!
     

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