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Rough Idle, Help!!

Discussion in '1st Gen. Tacomas (1995-2004)' started by 95toyotaco, Jan 16, 2010.

  1. Jan 16, 2010 at 5:34 AM
    #1
    95toyotaco

    #1
    95toyotaco [OP] Member

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    New Brunswick, Canada
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    95 Ext. 5 speed 3.4 L
    Hi! New to the Forum. I have a 95 Toyo Tacoma, 3.4 L 5 Speed. I have owned it for almost 4 years. It has run flawlessly and has 146,000 miles on it.
    My problem is that in the last couple of weeks it idles really rough. It feels like i am sitting in a wind storm. It runs great while driving, no hesitation, or lack of power, however while sitting idling, it runs very rough, the tach is not going up or down, there is a very strong exhaust smell as well. Any suggestions?? Thanks!
     
    95toyotaco, Jan 16, 2010
    #1
  2. Jan 16, 2010 at 5:44 AM
    #2
    chris4x4

    #2
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    2019 Rubicon 4 Door,
    4.10 gears, sliders, and lots of buttons.
    Welcome to TW!
    Is the engine light on? Also, when was the last time the plugs were changed?
     
    chris4x4, Jan 16, 2010
    #2
  3. Jan 16, 2010 at 5:51 AM
    #3
    95toyotaco

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    95toyotaco [OP] Member

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    The check engine light has been coming on and off for a couple of years. I had it checked when it first came on and they told me it was somewhere around the cat or o2 sensors, hwoever both sensors had been replaced just before i bought the truck. The gas mileage was always the same. I replaced the plugs when I bought the truck, and they have approx, 25000 miles on them.
     
    95toyotaco, Jan 16, 2010
    #3
  4. Jan 16, 2010 at 5:52 AM
    #4
    chris4x4

    #4
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Whats the engine code?
     
    chris4x4, Jan 16, 2010
    #4
  5. Jan 16, 2010 at 5:55 AM
    #5
    95toyotaco

    #5
    95toyotaco [OP] Member

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    Im sorry i dont remember. it was a couple of years ago. They said they couldnt pinpoint the problem with the cide.
     
    95toyotaco, Jan 16, 2010
    #5
  6. Jan 16, 2010 at 5:57 AM
    #6
    chris4x4

    #6
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Without the code, its really hard to diagnose. I would start with the plugs. Check them, and check for burnt electrodes. Then, check the wires. Also, you may want to clean the MAF, and IAC.
     
    chris4x4, Jan 16, 2010
    #6
  7. Jan 16, 2010 at 5:58 AM
    #7
    95toyotaco

    #7
    95toyotaco [OP] Member

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    Thanks! I have cleaned the MAF before and have used seaform awhile back. I will try these ideas. Cheers
     
    95toyotaco, Jan 16, 2010
    #7
  8. Jan 16, 2010 at 4:26 PM
    #8
    95toyotaco

    #8
    95toyotaco [OP] Member

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    Hey! No luck... still idling really bad... I dont get it?? It started one day out of the blue...??
     
    95toyotaco, Jan 16, 2010
    #8
  9. Jan 16, 2010 at 5:49 PM
    #9
    chris4x4

    #9
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
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    2019 Rubicon 4 Door,
    4.10 gears, sliders, and lots of buttons.
    Check the IAC.
     
    chris4x4, Jan 16, 2010
    #9
  10. Jan 17, 2010 at 6:04 AM
    #10
    95toyotaco

    #10
    95toyotaco [OP] Member

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    what is that?? where is it located? Thanks!
     
    95toyotaco, Jan 17, 2010
    #10
  11. Jan 17, 2010 at 4:50 PM
    #11
    95toyotaco

    #11
    95toyotaco [OP] Member

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    Hey! Now the check engine light is continously blinking.... any ideas???
     
    95toyotaco, Jan 17, 2010
    #11
  12. Jan 17, 2010 at 5:01 PM
    #12
    chris4x4

    #12
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    2019 Rubicon 4 Door,
    4.10 gears, sliders, and lots of buttons.
    Have the code read. Then tell uis what the code is.
     
    chris4x4, Jan 17, 2010
    #12
  13. Jan 17, 2010 at 5:01 PM
    #13
    HondaGM

    #13
    HondaGM CallSign Monke

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    James
    South-Pole, Alabama
    Vehicle:
    2023 access cab V6
    the idle air control valve
     
    HondaGM, Jan 17, 2010
    #13
  14. Jan 24, 2010 at 4:58 AM
    #14
    95toyotaco

    #14
    95toyotaco [OP] Member

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    Hey! I was cleaning my K&N filter and was on my way to replacing my fuel filter when I noticed a vacuum line that was completely broken off which was going to my intake. Replaced this and the truck now runs like a top again!! Thanks for all your help!! Cheers!!
     
    95toyotaco, Jan 24, 2010
    #14

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