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Random starting noise HELP

Discussion in '4 Cylinder' started by Prerunner2511, Dec 21, 2011.

  1. Dec 21, 2011 at 5:59 AM
    #1
    Prerunner2511

    #1
    Prerunner2511 [OP] washed in the blood and wrapped in camoflauge!

    Joined:
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    Maryville, TN
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    04 PreRunner SR5 DC
    Mossy Oak decal and embelms, Pacer Wheels, XM satelitte ,
    ok its starting to get cold and i noticed that if my truck sits over night when the weather gets cold that when I start it it rattles, but when it warms up it stops instantly. Is this normal? Have any of you seen this happen before?
    Because in all honesty it scared the hell out of me when I started hearing it
    hope yall can help me with this one
    AJ:confused:
     
    Prerunner2511, Dec 21, 2011
    #1
  2. Dec 21, 2011 at 6:06 AM
    #2
    98tacoma27

    #2
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    What exactly is rattling?
     
    98tacoma27, Dec 21, 2011
    #2
  3. Dec 21, 2011 at 6:15 AM
    #3
    Prerunner2511

    #3
    Prerunner2511 [OP] washed in the blood and wrapped in camoflauge!

    Joined:
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    A.J.
    Maryville, TN
    Vehicle:
    04 PreRunner SR5 DC
    Mossy Oak decal and embelms, Pacer Wheels, XM satelitte ,
    i dont know exactly it sounds like something under hood but im not exactly sure
     
    Prerunner2511, Dec 21, 2011
    #3
  4. Dec 21, 2011 at 6:16 AM
    #4
    98tacoma27

    #4
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    This is only happening with a cold motor?

    This is only happening when being cranked?
     
    98tacoma27, Dec 21, 2011
    #4
  5. Dec 21, 2011 at 6:22 AM
    #5
    Prerunner2511

    #5
    Prerunner2511 [OP] washed in the blood and wrapped in camoflauge!

    Joined:
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    Gender:
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    A.J.
    Maryville, TN
    Vehicle:
    04 PreRunner SR5 DC
    Mossy Oak decal and embelms, Pacer Wheels, XM satelitte ,
    cold motor after it is started, while it is warming up in the morning, but whenit warms up its stops
     
    Prerunner2511, Dec 21, 2011
    #5
  6. Dec 21, 2011 at 6:25 AM
    #6
    98tacoma27

    #6
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    Hmm, I'd look at the exhaust shrouds, cooling shrouds, etc. You might have to try and move them before you start it up. Then start it up with the hood open and see if you can see what is rattling
    .
     
    98tacoma27, Dec 21, 2011
    #6
  7. Dec 21, 2011 at 6:31 AM
    #7
    Prerunner2511

    #7
    Prerunner2511 [OP] washed in the blood and wrapped in camoflauge!

    Joined:
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    Messages:
    184
    Gender:
    Male
    First Name:
    A.J.
    Maryville, TN
    Vehicle:
    04 PreRunner SR5 DC
    Mossy Oak decal and embelms, Pacer Wheels, XM satelitte ,
    now my Papaw worked at toyota for 20 somethin years and he sad that it could be something called a knock sensor. Meaning that it does that just to pretty much warn you not to drive it until it warms up but idk if thats what it is because ive never heard of that
     
    Prerunner2511, Dec 21, 2011
    #7
  8. Dec 21, 2011 at 6:38 AM
    #8
    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    LMAO, yes they have knock sensors but that's not what they are for or what they do.

    Knock = detonation = pre-ignition. The sensor(s) tell the ECU if the timing needs adjusted.
     
    98tacoma27, Dec 21, 2011
    #8
  9. Dec 21, 2011 at 6:44 AM
    #9
    Prerunner2511

    #9
    Prerunner2511 [OP] washed in the blood and wrapped in camoflauge!

    Joined:
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    Messages:
    184
    Gender:
    Male
    First Name:
    A.J.
    Maryville, TN
    Vehicle:
    04 PreRunner SR5 DC
    Mossy Oak decal and embelms, Pacer Wheels, XM satelitte ,
    yea i knew about those lol and he did too but he said this was different lol. thats what i thought he was talking about to when he mentioned it !
     
    Prerunner2511, Dec 21, 2011
    #9

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