So I recently did my emissions removal with 5/6th port semi-removal. And now I have a vacuum leak that I can't find. I have new gaskets on everything except the omp which I rtv'd the crap out of. I kept the BAC. It runs and drives, just won't idle. I have all the vacuum nipples capped, that did to be. I am absolutely stumped. Any ideas??

 

check the lower intake gasket, i have seen some people put them on backwards and it creats a v- leak

 

Will do. Thanks

 

did that once.. it sucked. the carb cleaner spray trick works too.

 

if i where a vacuum leak i would hide somewhere you couldn't find ! ! !



Use carb cleaner and go to town on the engine. listen for varying rpm's

 

bouncing idle could also be caused by a looped line or tps neeeds to be readjusted

 

I wish it was a bouncing idle. It won't idle, cold, when you first start it, it idles around a 1000rpms for maybe 30secs, after it drops under it dies. I have empty 2 bottles of carb cleaner already, and wasted a pack of my buddies cig's trying to find this. I did notice some fuel under the manifold that I assumed was from when I took of the secondary fuel rail but I'm going to check that out 2day.

 

So I had a loose hose clamp on the primary fuel rail. But that didn't help.

 

well, I swapped my fuel lines when I did my emissions removal! that threw me for one helluva loop. it would crank crank crank crank and sputter. so I'd crank and crank and crank on it some more...

 

You can here the leak at 1700rpms. But we can't find it, which is probably what makes me the madest cuz I can hear it plain as day.