[ti_koup]

My car still makes the noise occasionally. Typically when it is wet or damp out and not long after the car has started. I'm at 75,000 miles and the clutch is still fine. Don't know what it is, but it'll be there until I'm done with the car.

My car also drives fine, it's just very irritating. And hopefully it's covered by the maintenance plan, otherwise i'll just drive it till something breaks.

 

[ti_koup]

Kia had a look, and the are going to try and replace the clutch under warranty. Apparently there was a TSB for 2012 vehicles about this issue.
My vehicle is a '11 but they they are going to try for a warranty claim.
Also they don't have stock

 

[Walpole5]

Good luck. Let us know what they find with the clutch. It's a very odd problem. I never brought mine to the dealer, because the issue occurred too infrequently. As time goes by, it happens less and less. I'd love to know what it is.

 

[ti_koup]

On my last service kia examined the clutch for the cause of the noise. They fixed it by simply replacing the fluid and bleeding the clutch. Sounds like voodoo to me but I looks like it worked:HighFive:

 

[Walpole5]

Mine still makes the noise, but it's rare. At 81,000 miles, I'm not worrying about it anymore. Interesting that changing the fluid got rid of the noise. Doesn't the clutch use the same reservoir as the brakes?

 

[ti_koup]

The noise came back after 6 days :BashHead:

 

[jbone]

Got the same problem, does it every once in awhile. My cars going for a service soon and will see what they decide to do, hopefully not just an oil change

 

[Walpole5]

It's crazy the way the sound comes and goes. I do think it happens more when it's damp. I've resigned myself to the fact the sound will be there for as long as I have the car. I was all set to bleed the clutch, I wish that had been the solution. It's easy and cheap. Maybe that's why the dealer did it?

 

[jbone]

My dealer said they have to replace it. They've had a look at it twice. I may have a go at bleeding it first as well as cdv delete jusy for the sake of it

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[Walpole5]

The noise still seems to be related to damp weather and it only happens in the first mile or 2. I have 85,000 miles now and it still makes the noise once in a while. I can't believe it's anything serious, or something would have broken by now. Based on what ti koup said, bleeding doesn't help. After having the car for almost 3 years, I'm going to live with it.

 

[jbone]

Mine does it in any weather condition and a couple times per day. Not really a big issue as the clutch feels fine. Just worried about damage in the long run. Iv got 48000km at the moment. I wont bother bleeding it then, will probably just get it replaced at some point

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[Walpole5]

I think my problem may have gotten worse. This past week, I'm getting bucking/stuttering when I let the clutch out in first gear. If I give the car a little extra gas and slip the clutch more than normal, it's not there. All other gears are fine. I'm not sure it's related to the sound, but it's been damp and the noise isn't there, just this bucking. No check engine lights and no other issues. Thinking it may be a fuel issue, I put in some fuel injection cleaner to see if that would help. It only did it once after the cleaner. This is making me nervous. I really don't want to put a new clutch in a car I'm going to have about 8 more months. I'm at 119,000 miles.

 

[kiaguy007]

What you're describing sounds more like a mis, rather than a transmission problem. Have you replaced the spark plugs during that 119K?

 

[Walpole5]

Yep, replaced them with OEM plugs at 100k. The car ran fine on the way to work this morning, so the cleaner could have helped. A miss does sound possible, so a coil could be on its way out. I'll need to check this weekend.

 

[Walpole5]

Does anyone have the coil resistance specs for a 2011 2.4L? I found specs on the web for a 2014, which I suspect are similar, but I would like to be certain.

 

[kiaguy007]

The 2011 2.0L and 2.4L show the same coil part number. The specs for my 2.0 are .62+-10% for the primary and 7K+-15% for the secondary.

 

[Walpole5]

I know everyone is on the edge of their seats waiting to find out what is wrong with my car. It turns out it was a fuel issue. I put Rislone fuel system cleaner in my car and after the first day, the problem has disappeared. The bucking is gone and now I no longer have the occasional stumble when I start off in first gear. Pretty amazing, $8.99 and the car is running better than it has in months. So, a shout out to Rislone for making an excellent fuel system cleaner.

 

[kiaguy007]

I know everyone is on the edge of their seats waiting to find out what is wrong with my car....

LOL - not quite that anxious, but I do pay close attention to results like this from the various forums discussing the vehicles that we own. I believe that it's fairly common for a problem to repeat itself for any given vehicle - I've seen many examples of specific problems being seen over and over.

In all frankness, an additive such as this would normally be one of the last things I'd try, especially since all top-tier gas is supposed to have cleaner additives like this in the mix. BUT I'm not about to dismiss a result like this as just as just coincidence either. And I've also seen some information about a fuel system "cleaning" maintenance item for our Fortes, which I haven't been able to zero in on yet.

So here are a few follow-up questions. First, which Rislone product was it? (they sell more than one fuel additive). Next, do you think it might have been possible that you had some bad gas, which was dried up by the Rislone? Gas production has become so much better than it used to be, and bad gas doesn't happen much. But it certainly must happen occasionally. Last question - do you mainly use top-tier gas? Seems like most gas companies are using the required additives these days, but just wondering if it's possible what you've been using is one of those lagging behind.

It's nice to see a follow-up to a problem, especially since so many problem threads like this one go dead-ended.

 

[Walpole5]

Kiaguy, I used this Rislone:

http://shop.advanceautoparts.com/p/...Sfw_wcB#utm_source=acq&utm_medium=google&utm_campaign=gpla&utm_content=10435749

I also feel that fuel system treatment is mostly snake oil, but I tried it since it's cheap and easy. You may be right, it could have been some water in the system and the Rislone dried it out. But after the problem went away, I realized I did have a stumble that is also gone and it's been stumbling for months. For the past 3 or 4 tanks, I have bought gas at a new Costco station. Not sure if they are Tier 1, but the gas rotates quickly, since they are very busy.

I bought the Rislone treatment, since I had good luck many years ago with their oil treatment. I bought a used car with stuck piston rings and the Rislone freed them up and the car stopped smoking and burning oil. So, I've had 2 wins with Rilsone products out of the 2 times I've used them.

 

[kiaguy007]

...I realized I did have a stumble that is also gone and it's been stumbling for months. ...

IMO fixing an extended problem like that is much more significant than any short term event. It tends to support the idea that something in the fuel systems of these KIAs is getting gunked-up (and the solvents in the Rislone removed some or all of it). Probably the injectors, but being still under warranty I'm not about to disassemble things to have a look. But after 100K is reached I'll be interested to see what it looks like internally.
In the meantime I'll file this in the "approved fixes" bucket, because it certainly appears to have been the answer to the problem your Forte was having. Thanks for sharing your results!