This is interesting. I put 31k on my clutches before I bought Tom's tune and it drives way better with the tune, but it's not perfect. The clutches are being replaced on the 12th under the extension. I want to see how it will do with new clutches and being tuned again by Tom.I had a 14 Titanium.
First clutch pack at about 15K, second at 40K then at about 50 it started shuddering again. None of the clutches made it past 5K miles before I started noticing the shuddering but delayed taking it in just because of the annoyance. I was getting closer to the end of the warranty so I took it back again. At that point I traded it for a 16 Titanium thinking that maybe they corrected the issue. I've loved driving the Focus with the exception of the DCT. At around 10K I started noticing it but it wasn't severe. At around 15K I had let Tom do a tune on my car at the same time changing the thermostat to 180 on his advice. To be fair I hadnt said anything to Tom about the shuddering because the DCT issue is so common. The Tune was fantastic, loved it and would do it again in a second but the shuddering continued to get worse. So at 20K I took it to Ford again. My dealership was always fantastic about getting the clutch replaced quickly, no questions or hassles they just fixed it quickly. Anyhow during all the clutch issues I noticed that if the car was cold I generally didnt have problems, after a replacement when it got into the summer months then the clutch would start down hill. Now after the last clutch replacement Ive gone through most of the summer with no issues and an additional 20K on the clutch. The DCT feels like its a good thing to have in the car. So I cant help but think having the engine with the 180 thermostat may have been helpful. Less heat soak into the transmission and clutch. I dont think changing the thermostat to 180 after the clutch has been over heated helps the DCT but having the lower temp thermostat then having a new clutch might be the key. That or the last clutch pack and firmware actually worked?
Has anyone else had this experience after changing to the 180 thermostat?
Unfortunately it's hard to say if it was the clutch change + tune or if the thermostat made the difference. Both could definitely be of help, but I do think the software change + fresh hardware is probably most of it.
So I'm considering doing the thermostat next year. I kinda want to see what happens 15k later after new clutches and tune.
My car was almost entirely shudder free for a while on the tune, but it did start to act funny again, just not like it did stock. However I was also told my trans mounts needed replaced, and I've read that a worn mount can interfere with operation of a clutch. One thing I also started noticing was jerky shifts, especially in stop and go traffic.
Worn clutches, bad mounts...you name it. Hard to say. I'm just excited to get new hardware and retune.
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