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Mystery Diagnosis: Can You Tell Me Why It's Doing This?

Discussion in '4 Cylinder' started by ToyOwner, Mar 2, 2010.

  1. Mar 2, 2010 at 1:48 PM
    #1
    ToyOwner

    ToyOwner [OP] Member

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    When I start out in first gear, it rumbles and stutters and shakes and shimmies unless I rev it up to 3K RPM.

    I think it's the distributor cap and rotor. It's got about 165,000 miles on it and I know these haven't been replaced in about ten years.

    But could it be the fuel filter?

    Your opinion greatly appreciated!

    It's a 2.7 liter 4 banger, if that helps.
     
  2. Mar 2, 2010 at 4:30 PM
    #2
    EnolaGaia

    EnolaGaia Well-Known Member

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    Since you mentioned a distributor, may we assume this is a 1995.5 - 1997 Tacoma?
     
  3. Mar 2, 2010 at 5:26 PM
    #3
    afd23a

    afd23a Well-Known Member

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    My experience with fuel filters is that when they start to restrict the flow, higher RPM's only make the sputtering worse. It might not be a bad idea to just do a tune up, fuel filter included.
     
  4. Mar 3, 2010 at 10:39 AM
    #4
    ToyOwner

    ToyOwner [OP] Member

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    Thanks for the responses, both.

    It's a 1997.
     
  5. Mar 3, 2010 at 11:44 AM
    #5
    silverback

    silverback Well-Known Member

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    I have an 06 reg cab that does the same thing. I thought it might be the low gear ratio. I too have to increase the rpm to help. I just lived with it not knowing if something is wrong.
     
  6. Mar 5, 2010 at 4:59 PM
    #6
    micropiper

    micropiper Admiral of the JOLLY ROGER navy

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    Check plugs too man. Had a similar problem on my 99. plugs and wires fixed it quick.
     
  7. Mar 6, 2010 at 8:36 AM
    #7
    tiger955

    tiger955 Well-Known Member

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    If the engine is actually misfiring I would go with a thorough tune up, cap, rotor, plugs, wires, filters, etc.
    Could be a shaking caused by hot spots or warpage in the the clutch or flywheel with that many miles too. Also check the trans and motor mounts, they can cause a truck to shudder when starting at low rpm's.
     
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