Why is my idle so high?

[clg82]

Why is my idle so high. I started up my car today and the idle is high at about 1000 rpm's.....i checked to make sure the floor mat isn't pushing on it, and i turned the car off and back on again but still the idle is high?!?! how do i fix this? below is what i have done to my car, and i haven't ever had this problem before what could it be?

[Wesman]

Why is my idle so high. I started up my car today and the idle is high at about 1000 rpm's.....i checked to make sure the floor mat isn't pushing on it, and i turned the car off and back on again but still the idle is high?!?! how do i fix this? below is what i have done to my car, and i haven't ever had this problem before what could it be?

Have you disconnected the battery recently??

[clg82]

Have you disconnected the battery recently??

yes about 2 weeks ago...........

[clg82]

what would me disconnecting the battery have to do with it?

[666ws6]

When you disconnect the batt, your car has to relearn the idle. It may take a little time for it to get back to normal. But it should come back if that is your issue.

[Too Fast]

You could have a vacuum leak also. Make sure all vacuum lines are intact.

[clg82]

When you disconnect the batt, your car has to relearn the idle. It may take a little time for it to get back to normal. But it should come back if that is your issue.

You could have a vacuum leak also. Make sure all vacuum lines are intact.

I will drive it for awhile and see if that helps it "relearn" the idle.......and where are these cars common to have vacuum leaks?

[666ws6]

I've never had a leak, but I hear the PVC tube is prone to cracking.

Your car should relearn fairly quickly, even within the same start. So long as you're not continuing to disconnect it, you should be back to the learned state. I'd look around for anything loose. What were you doing that you disconnected the battery?

[TransAm11973]

hows your throttle blade look??

[0rion]

I would check those vacuum lines real good. Look at the backside of the pcv hose that goes into the intake.

[Wesman]

yes about 2 weeks ago...........

Thats not it then, it would have relearned by now, unless this is the first time you've really driven the car since then.

Check the PCV system as the other guys said, and also take off the air intake and make sure the TB blade isn't gummed up with carbon or oil, which could cause it to stick open and not fully seat in the closed position.

[clg82]

hows your throttle blade look??

I would check those vacuum lines real good. Look at the backside of the pcv hose that goes into the intake.

I will take off the smooth bellows this weekend and see what it looks like in there if it is dirty what should i use to clean it?

[JwMonE99]

Ethonal in our gas is probably causing it to idle higher

[clg82]

Ethonal in our gas is probably causing it to idle higher

It's never idled that high before, and while it does it sounds like the engine is "racing".

[0rion]

It's never idled that high before, and while it does it sounds like the engine is "racing".

because you have a vacuum leak

[Eric1987]

My car idles around 900 is that too high?

[noxside]

My car always sits at 900-1000 for about 30 secs, then falls back down at idle/park...

[shady milkman]

depends on if you have a cam ect.

[clg82]

because you have a vacuum leak

it didn't do it today when i drove it............it drove fine today......

My car always sits at 900-1000 for about 30 secs, then falls back down at idle/park...

mine does too

[shady milkman]

hmm weird..mine will idle close to 1k then once the engine reaches op. temp it drops along with my oil pressure