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BackFire...popping at idle?

Discussion in '4 Cylinder' started by mobius, Apr 27, 2010.

  1. Apr 27, 2010 at 6:34 AM
    #1
    mobius

    #1
    mobius [OP] Well-Known Member

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    Hey guys,

    Quick question...I have an 07 access cab 4x4 4banger and notice that it backfires a bit. For example, I noticed it the other day driving down a back road...down hill, 4th gear, about 35mph. The other day I noticed it pop....pop...pop during idle. I usually run the cheap gas in it, 87. Has anyone noticed this? Should I be worried?
     
    mobius, Apr 27, 2010
    #1
  2. Apr 27, 2010 at 6:41 AM
    #2
    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    No codes or CEL?

    Sounds like you maybe runnig rich or possibly a timing issue.

    I would suggest cleaning your MAF and pulling the battery NEG cable for a few minutes. Maybe the ECU developed a brainfart. Double check for some loose vac lines too.
     
    98tacoma27, Apr 27, 2010
    #2
  3. Apr 27, 2010 at 7:00 AM
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    Danosabre

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    Danosabre Well-Known Member

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    When was the you cleaned your fuel system. Put a can of seafoam in your tank.
     
    Danosabre, Apr 27, 2010
    #3
  4. Apr 27, 2010 at 7:16 AM
    #4
    mobius

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    mobius [OP] Well-Known Member

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    Thanks for the reply guys...honestly I've never cleaned my fuel system. Guess its time :) Seafoam? Never heard of that. Is it something I can pick up at Auto Zone? Just pour it in and run the engine?
     
    mobius, Apr 27, 2010
    #4
  5. Apr 27, 2010 at 7:20 AM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    98tacoma27, Apr 27, 2010
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  6. Apr 27, 2010 at 7:34 AM
    #6
    mobius

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    mobius [OP] Well-Known Member

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    Thanks 98 for the info...very helpful. Guess I now have plans this weekend :D
     
    mobius, Apr 27, 2010
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  7. Apr 27, 2010 at 7:35 AM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    :woot:
     
    98tacoma27, Apr 27, 2010
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  8. Apr 27, 2010 at 11:50 AM
    #8
    mobius

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    mobius [OP] Well-Known Member

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    What should the timing be? What are you guys running? I get a ton of highway miles.
     
    mobius, Apr 27, 2010
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  9. Apr 27, 2010 at 11:53 AM
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    Danosabre

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    Danosabre Well-Known Member

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    How many miles on it, and when did you last change the plugs?
     
    Danosabre, Apr 27, 2010
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  10. Apr 27, 2010 at 11:54 AM
    #10
    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    The timing is electronic and not adjustable. It's controlled by your crank sensor. Don't read into this too much yet. Do the simple easy fixes first or until a code pops up.
     
    98tacoma27, Apr 27, 2010
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  11. Apr 27, 2010 at 12:04 PM
    #11
    mobius

    #11
    mobius [OP] Well-Known Member

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    Thanks 98...will do.

    Dano...I have 65k on it, changed the plugs around 25k. Probably wouldn't hurt to throw a new set in?
     
    mobius, Apr 27, 2010
    #11

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