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Rough idle

Discussion in '1st Gen Tundras (2000-2006)' started by jggeere, Apr 9, 2021.

  1. Apr 9, 2021 at 4:11 PM
    #1
    jggeere

    jggeere [OP] New Member

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    jared
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    2002 toyota tundra 4.7 4x4
    So I’ve been dealing with this rough idle for a while now and I can’t seem to find the issue. I’ve cleaned the MAF, throttle bottle, replaced spark plugs, and a few other things but the rough idle is still sticking around. What else must I try? Timing belt, water pump, and fuel pump have been changed in the last 3 months. Any suggestions would be great. Thanks in advance.
     
  2. Apr 9, 2021 at 4:36 PM
    #2
    Jack McCarthy

    Jack McCarthy Truck repair enthusiast; Rust Aficionado

    Joined:
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    Bill
    North of Boston
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    02 Tundra AC SR5 V8 4x4
    A new air filter helped smooth out my rough idle, but it was in pretty bad shape.
     
  3. Apr 9, 2021 at 4:42 PM
    #3
    MEWaters

    MEWaters New Member

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    07 2UZFE TRD OR; previous 02 AC 323k
    Eibach pro suspension Nitro 4.88 with Auburn Pro LSD and PTFE diff bushings Level 8 MK6 18x9 SAIS bypass JBA cat back Scangauge 2 Diode dynamic fogs. LED heads Husky liners
    you burning any oil? Losing coolant?
     
  4. Apr 9, 2021 at 4:45 PM
    #4
    BubbaW

    BubbaW Been Real

    Joined:
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    Bubba
    Where Eagles Nest
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    04 DC LTD 4X4 4.7 V8
    T150 Lover
    vacuum hoses in good shape ?
    Does it ever die and/or set any codes ?
    Did you clean TB or someone else ?
     
  5. Apr 10, 2021 at 10:02 AM
    #5
    Toyoda Tundra

    Toyoda Tundra Boxing and Tundras

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    2WD 2004 AC Tundra. V8 strong
    Have you checked your ignition coils? Check for cracks.
     
  6. Apr 10, 2021 at 4:17 PM
    #6
    jggeere

    jggeere [OP] New Member

    Joined:
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    jared
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    2002 toyota tundra 4.7 4x4
    I figured it out. There were a few broken blades on the radiator fan( it was throwing everything off evidently) Anyone know how that could happen? Went to a junkyard to find a new one because apparently you can’t get them anywhere. Runs silky smooth again. Thanks for the suggestions!
     
    FrenchToasty likes this.

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