I've had my JCW around 2 months and every opportunity I get I drive with the windows down and the sunroof open. I've grown a costumed to the sounds while driving and noticed today, two things had changed. My turbo didn't seem to be engaging unless I was trying to accelerate quickly. The other change was that I wasn't hearing the 'hiss' while shifting, once again, unless I was trying to accelerate. Is this a sign that my turbo is going out? Other than that, the car drives like the day I bought it. I also keep my oil checked and still have the factory warranty on the car.

 

New issue arose today. While driving I downshifted to 4th to get around someone and when I let out the clutch the car felt like it choked up a little and it sounded there was a crunchy leaf underneath my hood. Any thoughts on any of this?

 

I had a similar problem awhile back, from time to time under full throttle my car would choke and stagger for a spit second also hearing a crunching noise coming from the front.

Did you find the reason for the problem?

 

Yes and no. It happened only a few times and I was pretty scared it was the turbo going out. Hence the post, but it hasn't done it in some time. It could have just been some bad gas or a small clog in the intake but like I said, hasn't happened in a while. I'll get on it tomorrow when I go out and get back with you.

 

See if you can get audio of it.

 

Couldn't get it to happen yesterday or today. Not sure What it could have been but I'll keep an ear out. I agree with ECS Tuning. Try and get audio!