Civic EG

So i started my car this morning n as soon as i turned it on my RPM's went straight up to 3,000 n back down then back up n down, it was doin this continuesly. Wat can it b?

And also i got a new clutch put in n i gotta press the clutch all the way down 2 the floor 2 put it in gear n i barely i mean barely let go of the clutch n it moves forward quickly with out pressing the gas at all, if i let go 2 fast it'll peel out. Can this b fixed n wat can it b?

I saw on a car show a BMW had that clutch problem and it was the clutch slave cylinder was busted and not holding pressure so it was causing the biting point to be near the floor. As for your idling problem my 95 EX Sedan does the same thing. When I first turn the car on it shoots up to 2000 rpms and goes done after about 10 minutes once the car warms up. I just don't worry about it lol

Clarkypoo wrote:I saw on a car show a BMW had that clutch problem and it was the clutch slave cylinder was busted and not holding pressure so it was causing the biting point to be near the floor. As for your idling problem my 95 EX Sedan does the same thing. When I first turn the car on it shoots up to 2000 rpms and goes done after about 10 minutes once the car warms up. I just don't worry about it lol

It wouldn't bother me but i look like a fool driving through campus n stopping at a stop sign n my car starts rev'n really hard. So i wanna fix that problem.

could be several things im thinkin its your throttle position sensor bud or your idle air control valve it could also be a vacuem leak

jb-b16b-ej1 wrote:could be several things im thinkin its your throttle position sensor bud or your idle air control valve it could also be a vacuem leak

I called a performance shop n he says it is a vacuum leak.

Definitely a vacuum leak.

Take a can of WD-40 or brake cleaner or something extremely fucking flammable and start spraying it on the mating surfaces of the throttle body to intake manifold, intake manifold to head, and where anything attaches to the intake manifold.

When the engine bogs down, you've found your vacuum leak.

i dont doubt at all its a vacuum leak but i have seen the that plastic cap come loose on the iac and it could cause it it has happened to me but the most common reason for this is a vacuum leak

The plastic cap falling off would also be a vacuum leak. But you're right, it's a valid suggestion to check anything and everything on the suction side of the engine.

ahh good to know. ive got a problem like that. i start my car and rpms go kinda high, and slowly come down, but then starts revving by itself for a few mins, then stops and idles fine

That One Dude wrote:Definitely a vacuum leak.

Take a can of WD-40 or brake cleaner or something extremely fucking flammable and start spraying it on the mating surfaces of the throttle body to intake manifold, intake manifold to head, and where anything attaches to the intake manifold.

When the engine bogs down, you've found your vacuum leak.

Im taking it 2 Humbles Performance 2morrow so they can fix the problem cause im way 2 busy wit school right now. Thanks 4 the help i'll let them know that it possibly might b a vacuum leak.

in my experience its the iac in need of cleaning... fitv needing adjustment or the pcv is stuck open and needs replaced couple of things to try

ExCoupe94 wrote:in my experience its the iac in need of cleaning... fitv needing adjustment or the pcv is stuck open and needs replaced couple of things to try

Thanks. I didn't have a chance 2 take it 2 a shop 2day but thursday im taking it n getting it fixed. Trying 2 get it fixed b4 Sunday. It's IMPORT FACE-OFF!!!!!!!!!!!!!!!

The PVC valve stays open so long as there's negative pressure in the intake manifold. Unless the engine is boosted, there is always negative pressure in the intake manifold.