How can i fix a knocking noise in my engine? i have a 2005 ford f-150 5.4L v8?

i have about 90k on my truck and it has started knocking when it idles and as i pick up speed. i am looking for a way i can fix this myself without spending a load of money.

14 thoughts on “How can i fix a knocking noise in my engine? i have a 2005 ford f-150 5.4L v8?

  1. vilyam Post author

    well really it depends if its a top end knock or a bottom end knock either way it is a tear down and a internal issue you can try risilone engine treatment but @90 k i would learn to deal with it because 1 its usually not cheap and 2 if you did fix it it still has 90 k on the rest of the engine you also can try stuff like lucas oil stabilizers but its just sounds like wear and tear i could be wrong but engine knocks are usually internal and in most cases not cheap to fix

  2. Kucifus Post author

    ZACK, YOU are responsible for this problem IF you are getting el cheapo oil changes. Your engine was DESIGNED to use SYNTHETIC oil that protects engine bearings and timing chain tensioners. HOPEFULLY, the knock is just a noisy valve lifter. If not you are in BIG EXPENSIVE TROUBLE!!! NEVER use conventional $20 oil changes unless you like expensive sensor and engine failure!!! If this is just PING< then here is your ANSWER!!! Your engine has a REMOVABLE idle air control valve. (IAC) This thing regulates fuel mixture by adjusting incoming AIR amounts, not fuel. It is EASILY cleaned with solvents, and returned to operational shape. CLEAN your THROTTLE BODY as well. MOTOR FLUSH your engine and use ONLY Mobil One 0W-30 or better 100% synthetic oil. Change it once a year, The pay-off is better power, economy, lower emissions, and oil changes that last for an entire YEAR or even longer!!! Total cost for this repair is about $20 for the cleaning, and the cost of the flush and GOOD motor oil. STAY AWAY from wax based engine oils that MAKE th sludge that RUINS engine sensors. TRUST ME! It's the TRUTH, ruth!

  3. marvinthemarshan Post author

    Most likely a rod bearing. Better get them all replaced now before you need a complete rebuild (or tiny a rod out the side of tug block). Change oil pump & clean/replace pick up screen. Low oil pressure and worn crank bearings will starve the rod bearings for oil.

  4. lista gratis nick havana

    Pretty nice post. I simply stumbled upon your weblog and wanted to mention that I have truly enjoyed surfing around your blog posts. After all I’ll be subscribing to your rss feed and I am hoping you write once more very soon!

  5. billigste gesetzliche krankenkasse

    Just wish to say your article is as astonishing.
    The clearness in your post is simply spectacular and i can assume you are an
    expert on this subject. Fine with your permission let me to grab your RSS feed to keep updated with
    forthcoming post. Thanks a million and please carry on the enjoyable work.

  6. basicknowlege

    Ok, first… ford 5.4L was NOT designed to run a full synthetic oil. Even the factory tech’s will tell you it uses a “blend”. Second.. depending on the sound of the knock it can tell you a lot. If you are familiar with the old 7.3L diesels… compare the knock to a quieter version of that… 90% of the time, if it sounds like a quiet diesel.. its a phaser. Easy way to double check this is to listen through the fenderwell, instead of over the radiator. Phasers are more noticeable from the side. Second option is that these motors are known for issues if you have used, or let anyone else doing the oil change use off brand or generic oil filters.. the filter element disintegrates, causing oil port blockage in the motor (this leads to extensive, and expensive repairs). I have seen an injector leak down the fuel pressure into a single cylinder, and bend a push rod… also causing a knock. Rod bearings are not typically an issue at 90k miles, but remember with any object that has this many moving parts… things WILL fail, and it could be any number of them. Best option is to get someone that is familiar with this motor to diagnose it and give you options on how to proceed.

  7. basicknowlege

    One more point.. be careful of the advice you follow on the internet.. as it is obvious some people do not really understand how things can be affected by following the wrong procedure.
    A. Lifters do not “knock”, never have.. they tick. very noticable difference.
    B. IAC valve “Idle Air Control” is almost never the issue for ping. Timing, and lean conditions cause ping.. if its happening at an idle.. its not the result of either of these.
    C. Be careful when using any kinds of solvents on IAC valve’s or Throttle Body’s. I do not believe Ford to be problematic when doing this, but some manufacturers actually have a weird “clear” lining in these components, that if you use solvent on them, it WILL destroy them. Please do research before you cause yourself more grief.

    and of course… best of luck!

  8. Cinda

    Yesterday, while I was at work, my sister stole my apple ipad and tested to see if it can survive a thirty foot drop, just so she can be a youtube sensation.
    My apple ipad is now destroyed and she has 83 views.
    I know this is entirely off topic but I
    had to share it with someone!

Comments are closed.