Jacked Up Idle....

[DigDeez]

The other day after cleaning out the clogged EGR valve through the throttle body with some Berrymans B-12 Chemtool, my idle speed got stuck at around 2K rpm. I was reving it by hand, let it go and the engine did not drop back down to normal idle speed. I also revved it from inside the car and the same thing happened.

P.S. One of the nostrils apart of the EGR valve was clogged; poked it out with a hanger; drove the car; CHECK ENGINE light still came on; next day and since, no light thumb However, when I did the 'suck test' of the line from the EGR valve the engine didn't drop in rev. Maybe I wasn't sucking from the right line? I no, I should run the codes, right?

 

[NotSoSlowSHO]

You should have reset the idle after fooling with the EGR.

and yes, pull the codes... see what your car is trying to tell you wink

 

[DigDeez]

And so, I can still go back and reset the codes, right?

 

[sdpatt]

A high idle can also be a sign of a vacuum leak and after doing intake and EGR work, that is a possibility. Check those gaskets and vacuum hoses. You might also see a CHECK ENGINE light and a lean condition if the vacuum leak is severe enough.

 

[DigDeez]

Gladly, the Check Engine light hasn't been on in a few days...the first time in months.

Will run codes and check those things out.

 

[PROPHET]

I'd say a vaccum leak,proabably a line for the seconderies,was with mine.

 

[DigDeez]

PROPHET:
I'd say a vaccum leak,proabably a line for the seconderies,was with mine.

Now, with checking vacuum lines for leaks, is it simply a visual inspection. What all to look for and which line did you find to have the leak?