Okay, so today I went about 100 miles, im use to when I start the car the idle will bounce a little then usually it stops. I finally got home and it was not bouncing, but a few hours later, prob 4-5 I started my car, it was bouncing, thought it was normal, I go about 5 miles, and its still doing it. I finally pull over and let it sit for about 15 minuets and its still doing it, so I pull into a parking lot going about 20 mph, let off the gas and clutch and the car is literally driving its self. idle isn't bouncing but literally driving its self. I turned the car off, started it put it into first and it started to drive its self again, and im not meaning like fast exel, just about 5 mph or slower, I have no idea what is wrong or what could be doing this but please any information will help.
Thank you.

 

probably a vacuum leak

 

Just FYI, this has nothing to do with all motor or natural aspiration. We can help you here but next time think about your topic and where it would belong

You first need to check for vacuum leaks. Its easiest to spray break cleaner on your hoses. If there is a sudden change in the idle then inspect that area. Other things to consider are the fast idle and idle control motor. If you have no idea how to diagnose something like this I would recommend finding a repair shop.

 

Thank you, will do so when I get off work an hopefully find the problem, didn't really know where to put this topic so just threw it into a spot, my bad.