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Motor Knocks

Discussion in '4Runners' started by IrmoRabbidMoose, Jan 13, 2014.

  1. Jan 13, 2014 at 4:00 PM
    #1
    IrmoRabbidMoose

    IrmoRabbidMoose [OP] Well-Known Member

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    Jay
    Irmo, SC
    Vehicle:
    2003 SR5 Debadged 4x4
    tool box, tint. (Soon to come... HID's, Mud Terrains.)
    Hey guys, I'm about to buy a 2002 4runner Sport from a friend of mine and he's had it since it had 10k miles on it, it currently has 160k. He's taken extremely good care of it which is why I'm interested in buying it. The only problem he says, is that the motor has a "knock" when he uses 87 octane gasoline but not when you use 89 or higher. I've never heard that before and I've had a couple of Tacoma's that have had the 3.4L and never have I had an issue with a knock! I know he's not trying to hustle me or anything, and he's not the most mechanically knowledgeable person out there. Maybe a knock to him is a tick to me. I don't know. Either way, assuming it's a knock, has anyone ever had experience with this and/or heard of this. It's obviously not required from Toyota to run 89 so I'm confused. I don't see him that often so if I could on a whim I'd drive to his house and test drive it.
     
  2. Jan 13, 2014 at 4:07 PM
    #2
    dayNnite4

    dayNnite4 We can't stop here, this is bat country.

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    Nick
    Southern NH
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    My 2011 with 27k on it has a light tick, which I was told on here is just the spark plugs and was commonly referred to as the "tacoma tick". A knock, however, sounds more concerning
     
  3. Jan 13, 2014 at 6:38 PM
    #3
    IrmoRabbidMoose

    IrmoRabbidMoose [OP] Well-Known Member

    Joined:
    May 9, 2012
    Member:
    #78520
    Messages:
    203
    Gender:
    Male
    First Name:
    Jay
    Irmo, SC
    Vehicle:
    2003 SR5 Debadged 4x4
    tool box, tint. (Soon to come... HID's, Mud Terrains.)
    Yeah that's what I was thinking. He was telling me however how he changed the spark plugs and wires. I don't know what to expect. Like I said a knock to him might be a tick to you and I. I haven't heard the car run in quite a while.
     
  4. Jan 14, 2014 at 1:55 PM
    #4
    IrmoRabbidMoose

    IrmoRabbidMoose [OP] Well-Known Member

    Joined:
    May 9, 2012
    Member:
    #78520
    Messages:
    203
    Gender:
    Male
    First Name:
    Jay
    Irmo, SC
    Vehicle:
    2003 SR5 Debadged 4x4
    tool box, tint. (Soon to come... HID's, Mud Terrains.)
    Anybody else?
     
  5. Jan 15, 2014 at 1:18 AM
    #5
    Taco47

    Taco47 Well-Known Member

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    it would help if you can get a video clip of it knocking.
     
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