I am not sure if this is the right place to put this thread as I am totally new to this forum and barely know anything about cars.

Anyway, yesterday while driving my car I noticed that when my car is in park the engine starts revving like crazy. This also happens when I am stopped at a light. After the engine revs for awhile the car begins to jut forward as if I were pushing the gas, braking, pushing gas, braking, etc. After about twoish minutes the car then stalls. I was driving my car home and at every stop light I had to turn my car off and turn it back on when the adjacent light turned yellow, as not to smash into the car infront of me. Or I would just take a very long time to slow down.

I just failed a state inspection because of my brake pads and power steering rack. Could those be the cause of this? Do I need to check my oil? I know this sounds funny but I tried checking it today but my dipstick in broken so I couldn't seem to find the stick at all. Haha.... I also checked to see if maybe something was caught under the gas peddle, pushing it down but nothing was there.

I know I should bring it to a mechanic but right now I don't have enough money for someone to fix all the things wrong with my car. I am hoping it is something I can get a friend to do or maybe do myself.

 

Dirty or bad IAC valve

 

What kindaoff car did u buY is this a salvage tilte car ???, (inspection et all)
My car did that when the trans was going out ??? but it could definately be the IAC gone bad or the FPR especially when it gets real hot or real cold weather wise >>.

 

My car did the same thing and it was my IAC

 

That or a vacuum leak somewhere.

 

My car did that when my CAI filter ripped apart. Once I put a new filter on it all was well.

 

What happened? Did you find out what was causing the problem? I have a TL and the same thing happened to me yesterday.

Hopefully, it wasn't too expensive. I look forward to hearing back from you.

Thanks!

 

If its the IACV I have one forsale in the classified section. asking price is $40 shipped.

 

Where can Vacuum leaks occur? Fuel lines? where else?

 

any where there is a vacuum. (mostly from the intake/TB area)

 

 

Like everyone else said, bad IACV.