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Back firing 2.7 4 cyl

Discussion in 'Technical Chat' started by al's toyota, Mar 6, 2010.

  1. Mar 6, 2010 at 2:29 PM
    #1
    al's toyota

    al's toyota [OP] Member

    Joined:
    Nov 3, 2008
    Member:
    #10467
    Messages:
    5
    Gender:
    Male
    Arizona
    Vehicle:
    08xcab4x4
    ZERO
    I have a 2008 tacoma 4x4, 2.7, 5 spd that has 11k miles. In the last 8k I have put on truck I have experienced 6 events where a pop out of the exhaust can be heard. It has happened while at speed and not shifting or pulling a grade and once while wife driving.
    After the second time I mentioned it to dealer when in for first oil change and inspection etc. He said that there was no evidence on the "memory bank" or codes. He also said that there were no bulletins issued. It just happened again today at 70 mph on a flat straight hiway stretch. No one has messed with ignition or washed down engine.
    Any ideas?
     
  2. Mar 6, 2010 at 4:05 PM
    #2
    4low2go

    4low2go Well-Known Member

    Joined:
    Dec 2, 2009
    Member:
    #26896
    Messages:
    731
    Gender:
    Male
    Coatesville, PA
    Vehicle:
    10 RC 4x4 5sp MGM
    Curt hitch, OBX Shift
    Have you tried running a few tanks of Premium fuel? Might be old gas, or water laden methanol gas. The alcohol absorbs water and could be the issue. I always run premium.
     
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