Vacuum leak!

[SHOguy 92]

Well, I narrowed down my problem and I am 95% sure it's a vacumm leak. The car has a high idle, rpms go crazy when you barely step on the gas the whole car literally bounces from the engine misfire. I cleaned the IAB, replaced the solenoid on the IAB, got new plugs, wires, MAF, and some other stuff. When I pulled the old plugs the ends were totally white i.e. burning lean. Well, today I try cruise control and guess what I don't have any, when I use to. So right there is my huge hint at a vacuum leak. I tried using starting fluid and spray hoses to find the leak, but I can't? Any other ideas on how to find it, or where to look?

 

[yamahaSHO]

Propane....

 

[SHOguy 92]

Propane....

Sorry I don't need heads implanted in my face or torso..........

 

[yamahaSHO]

Eh... I'll just keep my suggestions to myself from now on.

You can use propane to find a leak. Take a propane torch(don't light it), open it up and move it around where you think a leak might be. When you find the leak, the motor will start revving differently.

 

[SHOguy 92]

Interesting, I suppose gases will get through small holes a lot easier than starting fluid. I'll have to check around for a torch

 

[masho95]

Did you remove the intake to replace those spark plug wires??

 

[SHOguy 92]

Nope, took me about 25min to change them and plugs without removing the intake. Removed the little black tank on the back of the intake and the little bracket that the tank attaches too.

 

[HopefulSHO]

I would guess (?) that an intake leak that size would probably be audible. Perhaps this is a dumb question, but have you poked your ears around?