Engine sound in ford 250

Discussion in 'Trucks and Trailers' started by crzymow, Dec 8, 2006.

  1. crzymow

    crzymow LawnSite Senior Member
    from Pa
    Posts: 378

    I have a 99 F250 with 55,000 miles on it. Recently it has started making a ticking sound especially when the engine is under a load or accelerating fast. I'm thinking it is a lifter or maybe a valve sticking. Would it be something to worry about?
  2. FearThisDeere

    FearThisDeere LawnSite Bronze Member
    Posts: 1,168

    My '01 with 57k on it has the same noise. I am pretty sure that it is either what you have mentioned or a manifold bolt. I wouldn't worry about it, but the noise drives me nuts. Mine is under warranty, so the next time it goes in they will be checking it out.:weightlifter: What engine do you have crzymow?
  3. AndyTblc

    AndyTblc LawnSite Fanatic
    Posts: 5,469

    What you are describing is spark knock. Try running a higher grade of gasonline, then see who it is.
  4. FearThisDeere

    FearThisDeere LawnSite Bronze Member
    Posts: 1,168

    I ran 93 for two weeks and there was no change. It also does not happen under idle, just under acceleration.
  5. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Posts: 2,513

    That's what I was thinking, as well. Spark knock is usually most noticeable under load. I've had mostly Ford's all my life and they are notorious for carbon buildup. If this is the case, you can have it decarboned at the dealership or quite often do it yourself. Check out www.ford-trucks.com. I promise you you'll get some good advice there. :)
  6. AndyTblc

    AndyTblc LawnSite Fanatic
    Posts: 5,469

    The neighbor has that when he accelarates really fast, and that is with a chevy. But my uncle has an older ford and it has spark knock every so often.
  7. PGold

    PGold LawnSite Member
    from biloxi
    Posts: 53

    My 2003 makes the same noise when towing heavy loads up a hill. I assumed it was spark knock, but I didn't know higher grade gas helps that out. I appreciate the advice.
  8. qualitylawnmanagement

    qualitylawnmanagement LawnSite Bronze Member
    Posts: 1,001

    My dads company had a 99 v10 starting to do that, they had to replace the manifold and the problem was fixed. The noise is a ticking sound right? If it is then it's your manifold.
  9. Gatewayuser

    Gatewayuser LawnSite Bronze Member
    Posts: 1,734

    That is right I have had the same problem on cars and trucks. The manifold is cracked.
  10. FearThisDeere

    FearThisDeere LawnSite Bronze Member
    Posts: 1,168

    The ticking sound only occured under acceleration, right? Not during idle? Mine is going in for some work this or next week, so I'll get it checked out. My warranty covers pretty much anything it could be.

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