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Engine hesitation

Discussion in '1st Gen. Tacomas (1995-2004)' started by Drtierra, Mar 8, 2010.

  1. Mar 8, 2010 at 11:42 AM
    #1
    Drtierra

    Drtierra [OP] Member

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    I am new on the forum but I know my problem is not.
    Have 2004 tacoma V 6 with a bad hesitation problem after it warms up. Prior to warm up it runs fine.
    The CEL came on last week. Took it to Pep Boys. Code indicated # 4 plug had problem. Checked pulg & found it was not tightened correctly. Fixed it. Truck ran better.
    Few days later hesitation began again.
    I have changed the fuel filter & plugs. CEL is on again. I will take it back to P B but wondered if any of you can help.
     
  2. Mar 8, 2010 at 1:02 PM
    #2
    mikesdoublecab

    mikesdoublecab LT Chase Truck

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    clean the MAF sensor...
     
  3. Mar 9, 2010 at 12:45 PM
    #3
    Drtierra

    Drtierra [OP] Member

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    Thanks Mike. I did that but there is no change. It really wasnt dirty but I used MAF cleaner & Q tips.
    I suppose next is the 02 sensor. I will take it to have the code read & go from there.
     
  4. Mar 11, 2010 at 11:20 AM
    #4
    Drtierra

    Drtierra [OP] Member

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    Pep Boys checked code & says its a # 4 cylinder misfire. They want 90 bucks to tell me exactly what that means.
    I just put in new plugs. Could this be the plug wires? How do I check them?
    Or could this be something else that you know of?
    Thanks for any help.
     
  5. Mar 11, 2010 at 1:54 PM
    #5
    ETaco23

    ETaco23 Marshall offroad Fabrication

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    I hope when you were cleaning your MAF you didnt touch the little wires with the q-tips! That would be verry bad!
    And It could possible the wires are bad, I would change them first. Then go from there. I cant remember which side #4 is on. But if it the coil pack side, I know that those can fail or go bad too. Just throughin things out there! Hope you find the problem man! :)
     
  6. Mar 13, 2010 at 5:14 PM
    #6
    Drtierra

    Drtierra [OP] Member

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    I think I found & fixed the problem today. Changed the # 4 plug wire. Unhooked battery to re-set CEL.
    Took truck for test drive for about 10 miles. Hesitation is gone. Engine runs as normal again.
    Thanks EverTaco for the tip.
     
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