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#1 (permalink) Old 07-12-2008, 10:01 PM
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Default Valve tick.

Wifes 2004 Sorento sat for two days. She started it up today and it has what sounds like a valve tick. She cut it off and got me, I started it up and the tick is still there, cut it off checked oil level, it's fine (oil color fine, caramel color), drove it about a block and back, power is fine. The truck has about 80K miles on it and hasn't had problems before, other than diode in the interior light (replaced by dealer, bad again) and it seems to go through headlights and driving lights about twice a year. Has anyone else had this type problem? We live about twenty miles from dealer, would there be an issue if I drove it in? I use synthetic oil and change it about every 5K miles. Thanks.
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#2 (permalink) Old 07-14-2008, 06:27 PM
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Started the truck up and let it idle for about five minutes, the ticking cleared up. Drove the truck for about twenty miles on some errands before coming back home with no problems. Wife drove it to work with no problems, about fifteen miles. On her way home from work she stopped at a store then drove about a mile to a stop light. When she took off from the stop light it made what she said was a knocking noise and cleared up within a few seconds. Hopefully I can get it to the dealer tomorrow, but any ideas would be helpful.
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#3 (permalink) Old 07-14-2008, 07:39 PM
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I just bought my 03 Sorento back in April from a Ford dealership that was 100 miles away, when I got home with it, I heard a knocking noise. I was not pleased. Called the following work day and they had me bring it in. It ended up, what the mechanic said was "deep". It ended up being either the connecting rod or the crank bearing. Anyways, they agreed to pay for half the cost to replace the engine. I went for it. I am not saying your noise is this serious however, but noises can come from anything that moves under the hood.

Right now I have a little tapping noise which sounds like a valve but it only lasts a couple of minutes. It goes away before the engine even warms up. I suspect it is a bearing going out on one of the pulleys. The sound is not coming from "deep" inside the engine. I Would suggest when you go to the dealer, to have them check the pulleys first and let them find the noise elsewhere without you mentioning valves or they will probably will want to do the valve job first then look elsewhere later.
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#4 (permalink) Old 07-15-2008, 02:12 AM
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sounds like a hydraulic tappet thats sticking until its warmed up ..one of the camshafts stops with the cam follower depressed pushing the oil out of it and it a bit slow to expand when you start the engine ..Knocks from low down usually show under light load to start with ..If you can find it Forte do a good additive that sorts these cam follower problems out ...you add to oil run engine then change the oil for new ... why use synthetic not required and a big con.

You want advanced formula motor flush not the oil additive .

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#5 (permalink) Old 07-15-2008, 08:05 AM
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pistnbrk is right about the tappet. My 04 has 87k miles and will make a bit of lifter noise when it sits for a while without running. Usually goes away pretty quickly. Let it idle until the noise goes away - that allows the lifter (tappet) to regain it's pressure and work the way it is supposed to.

Motor flush isn't a bad idea, but you can try a lesser option first. Add approx. 1/2 quart of transmission fluid to you oil and drive for a hundred miles or so and change the oil and filter. We used to do this to free sticky lifters back in the old days. The transmission fluid has more detergents than motor oil and is not as harsh as the motor flush products in the US market.

I have also noticed a ticking noise that comes from the fuel injectors. It was loud enough to worry my wife, so it warranted a look. I used Lucas Fuel injector cleaner in a couple of tanks of fuel. Injectors quietened down and fuel mileage got a bit better. Driveability realy improved with smoother idle and acceleration.

Good luck finding the noise.
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#6 (permalink) Old 07-15-2008, 03:58 PM
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Originally Posted by nodog View Post
Started the truck up and let it idle for about five minutes, the ticking cleared up. Drove the truck for about twenty miles on some errands before coming back home with no problems. Wife drove it to work with no problems, about fifteen miles. On her way home from work she stopped at a store then drove about a mile to a stop light. When she took off from the stop light it made what she said was a knocking noise and cleared up within a few seconds. Hopefully I can get it to the dealer tomorrow, but any ideas would be helpful.
After your first post I was thinking it very simple. Thou the synth oil throws me. But then My truck acts weird on MOBIL 1 and KIA OEM filter now. And I will be gettin it out. And going with another synth oil SOON. I was thinking it is the common sit for a few days valve train clatter we all get. And both she and you did not run vech long enough for it to warmup and the tick to go away like the rest of us have come to know to do. Five mins idleing for some is not long. And most time it is better to drive it for a awhile and then you forget and stop hearing it after 5-10 mins. No longer for anyone here thou for sure. Ten mins is a very deceivingly long time. When it is not if you think on it and your normal routine. Bet you can not start vech back up and out of house and get to main road form your condo/appartment/houseing unit area ect in that time start to finish?. Yet it seems so long to SAY ten mins lol.

Now that you post the update here I have issues. Now that I combine the two. Many are not great problems in themsleves but still issues.

1) Gas you use and Octane. 87 and she will hear pingging on a vech that old and miles. Very fixable with 89 Octane
2) Butterfly screw issue. Very serious if you did not get and have recall done yet.
3) 80,000 or more and no mention anywhere in either of the post about the T/B. You are at least 15,000 on the safe side over. And how ever you would like to look at it 5,000 or more on the pressing your luck side. Only take one loose with age T/B to skip ONE TOOTH to get a nice knocking or worse. That being never ending valve clatter or none at all and no eng anymore soon.
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#7 (permalink) Old 07-15-2008, 05:32 PM
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You should not need to idle the engine at all before you drive that is bad for the engine and plain crazy ...simple motor flush is your best bet and see how it goes....because the engine always stops in thesame position its always the same lifter that gets compressed and hence the ticking noise until it pumps up to right height ...
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#8 (permalink) Old 07-15-2008, 10:02 PM
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Default Upper valve train "ticking"

I too have experienced same ticking noise. Bought used 04 sedona with 68K,
few days later ticking noise came about. Drained 1 quart of oil out of engine, added 1 Qt of Marvel Mystery Oil, that seemed to have cleared up the problem.

Oh, by the way what is the butterfly that was mentioned in an earlier post?
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#9 (permalink) Old 07-16-2008, 01:11 AM
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do a search back on all my post ..its an early one with 5 stars and get the thing unplugged fast ..there is a recall for replacement ..see your dealer
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#10 (permalink) Old 07-16-2008, 02:44 PM
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Be very careful using these motor flush things. For an engine that is half way to the grave, yes it is not as harmful to try them. As you are going there anyway. And the risk is less then the neg outcome can be doing nothing. But for an engine like yours, that just has the common tick/tap in valves after sitting. A few more frequent oil changes is far better. And very much might save the eng if it does have some major issues, but not life threatening ones. You really have to be careful of transfluids or super clean 20 mins eng flushes. As they can and will ALSO flush(more detergent) your rings right out of the eng. If you got gummed up but not bad rings, or rings that are sticky but not noisy. You will in too many case but not all, blow the rings out and clean them off too well. And then you got blow by and smoke all the time. And lower MPG form lower COMPRESSION. Like I said for a WELL taken care of eng. One that has a slight issue with ticking when it sits for a period. Start it up drive it easy but not your grandmother(up to 3500 rpms, over is bad) for ten mins on way to work or mall. And I bet in ten mins or less it is rock soild silent. That is perfectly fine in our vechs. If after ten mins it is STILL ticking then you got troubles more then you want. And if the less then ten mins/three miles and quite works then MORE FREQUENT OIL CHANGES is the cure. And better or DIFFERENT OIL too. Both these will flush out in time the sludge but not the babies bathwater. Mine right now run like crap on Mobil 1. And I bet if I went back to another brand, it would run well like always. I plan to at the end of the 3500/3-4 month. First time and last time. I have had good luck with CASTROL/QUAKER STATE/ WALMART synth. And have heard that Mobil 1 has this problem in some vechs. BTW I care less that GM puts it in OEM in Corvettes nor that Porsche puts it (10 qts) in every 911(996) rolling off the line. If it does not work well in MY vech, whom cares waht they do. I do not own a 911(993) anymore.

Last edited by 04SorentoLX; 07-16-2008 at 02:57 PM.
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