So I have noticed this a few times, but basically after sitting in stop and go traffic for about a half hour or so, and I get on my car when the traffic lets up after my clutch seems to be slipping.

Is this an issue with the clutch overheating or something or is the clutch going out?

The reason why I have always thought it was the clutch getting too hot and not grabbing as well is because on a cold start or when driving without stop and go traffic I don't have this slipping issue, and the clutch seems to grab just fine.

I have also noticed that if I leave my car idling for a little while 5-10+ minutes the clutch pedal will feel a bit strange, like super springy at the top of the pedal and light towards the bottom, making it sort of difficult to drive smoothly. But then when I drive it for a bit after that (and presumably cooling everything underneath off as a result) everything seems to go back to normal.

Anyone experience any of these issues or have any input?

Thanks!

 

Have a HR?

 

Also, how many miles on your Z, and is this the original clutch?

 

It's a 2005 Track Model (Revup), just under 78,000 mi. And yes I believe it is the original clutch (not the first owner).

 

slave may be going, clutch may be going, just replace both.

 

If you want to go cheap, try bleeding the clutch with Valvoline Synthetic 3 & 4 brake fluid. I specifically recommend this fluid from multiple trials and can say, without exception, I've had the best luck on my POS '08 clutch with this particular product. STAY AWAY FROM PRESTONE!!!

Since the clutch fluid is brake fluid, which is hygroscopic, you could be getting sponginess because of H20 expansion in the lines. It's a 20 minute job if you have a friend help you press the pedal. Follow the instructions on bleeding the clutch from your model year's FSM. You may find that you'll get another 20-30K miles if your clutch wasn't destroyed by the previous owner (that's the problem with used cars, it's always a crapshoot). Given the year of your car however, there is a possibility that you just need a fluid change.

 

Prestone? I used swapped my fluid for that stuff this weekend