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Truck Will not Idle

Discussion in '1st Gen. Tacomas (1995-2004)' started by shaggie, Jan 6, 2013.

  1. Jan 6, 2013 at 10:02 AM
    #1
    shaggie

    shaggie [OP] New Member

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    sean
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    I own a 2001Tacoma 4WD with a 2.7L engine. With 245k on the truck, it still runs strong; however, the truck has developed a problem. Yesterday, I tried starting the truck from a cold start and it did not want to idle. The truck would run only if I kept my foot on the gas and the engine revved up; however, when I removed my foot from the accelerator, the engine would die. Could this be an O2 or mass air flow sensor? I just cleaned the mass air flow sensor about six months ago with a cleaner designed for that purpose. I have not seen an error code or a check-engine light on the dashboard, and the truck runs great as long as I keep the engine revved up. This problem happened overnight Any suggestions? Would appreciate the help.

    Thanks,
    Shaggie
     
  2. Jan 6, 2013 at 10:08 AM
    #2
    Tacoma Mike

    Tacoma Mike 41 Year Toyota Master/ASE Master

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    I would start with cleaning the throttle body..
     
  3. Jan 6, 2013 at 10:10 AM
    #3
    Highland Logan

    Highland Logan UBIQUE

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    Frank
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    Maybe a Mod could also move this to the 1st Gen section, where the OP may get more advice.

    Best of luck.

    Frank
     
  4. Jan 6, 2013 at 10:20 AM
    #4
    2000GTacoma

    2000GTacoma Well-Known Member

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    Idle air control valve would be my first guess. I would clean throttle body and iac and then try it. Mine 1st gen v6 3.4 and my fathers 3.4 both developed idle issues. Cleaned the throttle body and iac and no more problems.
     
  5. Jan 6, 2013 at 11:38 AM
    #5
    Madjik_Man

    Madjik_Man The Rembrandt of Rattle Can

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    This. And if it persists after that, maybe the throttle position sensor is bad?
     
  6. Jan 6, 2013 at 2:57 PM
    #6
    Tacomaniacal

    Tacomaniacal luv gettin in the Taco

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    Clean the throttle body first. If persists check the idle control valve
     
  7. Jan 6, 2013 at 3:06 PM
    #7
    2000GTacoma

    2000GTacoma Well-Known Member

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    In order to throughly clean the tb it should be removed imo. only takes about 10-15mins. I would clean the iac as well since it is easily accessed.
     
  8. Jan 6, 2013 at 4:11 PM
    #8
    BamaToy1997

    BamaToy1997 ASE Master Tech Vendor

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    I suggest finding the problem before tearing into things. See if you have a friend who has a scan tool or talk to a local parts store. Many have them for rent for cheap or sometimes free. Look at the data and see what is not within range. THEN look at taking something apart. Did this happen suddenly, or is it something that looking back you can see it was getting worse until now?
     
  9. Jan 13, 2013 at 7:16 PM
    #9
    shaggie

    shaggie [OP] New Member

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    sean
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    Thank you everybody for all of your suggestions! The idle problem that my truck was experiencing was caused by a dirty IAC valve. I used some CRC throttle body cleamer that I had laying around to clean the IAC; and now, my Tacoma runs perfect! I appreciate the help.

    Shaggie
     
  10. Jan 13, 2013 at 7:29 PM
    #10
    2000GTacoma

    2000GTacoma Well-Known Member

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    Not a problem glad you found the problem for cheap.
     
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