Rep Power: 0

I understand that there is a post on rough idles already so dont beat me up about this. Sorry. Here is my issue.

While at lights car starts to chug like its going to stall. It has never stalled and this does not happen every time at every light. For instance I drove it earlier and it did this, then I drove it again 20 minutes of it being parked and it did not do this.

Also, the rough idle will stop if I turn on the recirculation button and turn the circulation up in the car. I didnt try it with heat or air conditioning. It will go down to a normal idle if I turn on that button for some reason.

I last year had timing belt done, also several gaskets and an clogged pcv valvle that blew out a gasket as well. I had all the plugs done at that time too.

At times I will see water or condensation in the driveway after driving it. it evaporates and doesnt leave a mark in driveway.

Please ask me anything, I am hoping I can repair this myself as I just sunk a bunch in on fixing broken calipers, sway bars, etc and a few things that had the engine light on.


Any help would be great.

 
Rep Power: 145

If you had read all the idle issues in the forum you would have to had read about the IAC valve. This is your first culprit, get to it, take it apart and make sure it isn't stuck/full of gunk.

Not sure why the re-circulate would affect idle, but who knows....

Also check your alternator ground... make sure it's on there tightly and that you are making a good eletrical connection, i.e. clean the terminal.

 
Rep Power: 518

See if the AC compressor is running when it shouldn't be. (Stuck clutch relay or some other control problem)

That could cause rough idle and puddles of water as you described. Could also burp out a cloud of freon if condition is right.