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Why is my truck started knocking and pinging? ?

2004 Nissan frontier 4cyl 2wd 132,000 miles.

9 Answers

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  • ?
    Lv 5
    2 months ago

    The pinging and knocking sound often occurs when the air-fuel mixture is incorrect, which causes the fuel to burn in uneven pockets rather than uniform bursts. 

  • ?
    Lv 6
    2 months ago

    If you put in fuel with an octane rating too low for your vehicle, it can create a knock. ... The combustion causes the “knocking” or “pinging” sound you hear. To prevent this from happening, use gasoline with an octane fuel rating at or above what the manufacturer recommends.

  • Anonymous
    2 months ago

    Check for trouble codes with a scanner. 

  • Anonymous
    2 months ago

    Bad gasoline?

    The ignition timing has changed?

  • 2 months ago

    Clues may be present in the codes. EGR clogged, carbon build up on piston. Bad gas. 

  • Anonymous
    2 months ago

    A condition causing the gas to pre-ignite has occurred. Any codes? Tune-up? Other factors?

  • CB
    Lv 7
    2 months ago

    Have you ever checked the oil level? 

  • Anonymous
    2 months ago

    English Lesson:  It should be "Why did my truck start knocking and pinging?"

    .

    FAIL

    .

    Answer: We don't know. Not enough information provided. WHEN is it doing that? Always? Only under hard acceleration? Going up hill? When the engine is warmed up, or when cold? Intelligent questions involve giving useful information. 

    .

    FAIL

  • ?
    Lv 5
    2 months ago

    how are we supposed to know? Take it to the junkyard its a pos anyway.

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