Cumulative Post Of Pete's Problems.

[cntchds]

Well, as we all know, my car has run in to potholes all along the path of me fixing it, and finally getting it into my possession.
First was the Coolant Temp Sensor. Then the Canister Purge Solenoid. Then the timing. Now the Vacuum lines.

Hm, it doesn't sound so bad when it is written out like that. Oh well.

This thread is simply here to put all of my problems into so I no longer clutter the boards with all of my new threads.


So right now I have a vacuum leak somewhere between my gas cap and the intake manifold. I have replaced all of the lines from the intake until the line that can be changed without dropping the tank, and it still fails the pressure test; my question is what else could it be if it's not the lines? The last line in the series that I replaced was perfect, and the line I didn't replaced looked even better. Are there any seals on the gas tank that could need replacing, or worse yet, is it possible that I may need a different tank? It has failed this pressure test twice, and I'm running out of places to turn with it.

Let me know about any ideas.

And yes I realize that this was in my other thread, but since the timing part was resolved I doubt anyone is really looking through it anymore.

 

[cntchds]

Nobody?

 

[topless95]

Not sure if these cars have a pressure relief valve on top of the tank, like older cars. If it does, it could be partially open due to dust/dirt . :dunno:

 

[cntchds]

Has anyone dropped the tank in order to know if they have a pressure release valve? Thanks for the possibility topless95.

 

[topless95]

Another idea for you, it might be a damaged o-ring/gasket where the sending unit/pump goes into the tank, or even a small pin hole in the rubber filler neck hose

 

[cntchds]

Interesting. Sounds like this project is getting more expensive. Guess it's time to drop the tank and take a look.

 

[topless95]

heres a basic pic that shows what they call a roll over valve

[attachment deleted by admin]

 

[cntchds]

Does anyone know where to get the grommet that the orifice valve fits in to? I have read that when dropping the tank you have to install a new filler neck grommet no matter what. Any other seals I should change while I am down there?

 

[topless95]

fuel pump assembly gasket, and if i am not mistaken the roll over valve is in the evap circuit see below (attaches to fuel vapor line which goes to the carbon canister


[attachment deleted by admin]

 

[cntchds]

It is, I just can't seem to find that grommet/gasket/whatever it's called online anywhere.

 

[cntchds]

On this diagram you can see two things on top of the carbon canister that aren't connected by vacuum lines. If I remember correctly those two knobs were connected to a thick line that went into a single line then just ended. Unfortunately I do not have a picture, but I don't know how else to describe it. What are those two stubs for? Thanks guys.

[attachment deleted by admin]

 

[cntchds]

This is a better picture in order to see the two lines joining together and disappearing. Does anyone know where this line is supposed to go?

 

[cntchds]

Nobody knows?

 

[topless95]

On this diagram you can see two things on top of the carbon canister that aren't connected by vacuum lines. If I remember correctly those two knobs were connected to a thick line that went into a single line then just ended. Unfortunately I do not have a picture, but I don't know how else to describe it. What are those two stubs for? Thanks guys.

What two knobs are you referring to?? In the pic or the diagram??

 

[cntchds]

On the picture there are two knobs that have a very thick line coming off of them and soon after connect. It's the only picture I have. Sorry. :dunno:

 

[cntchds]

Is there any other possible place that it could be leaking from? I don't want to get it smogged again, just for them to tell me I still have a leak.

I replaced all the seals on the tank, and I've replaced all of the hoses, as well as the canister purge solenoid.

Do you guys think I should be alright, or is any other piece proned to have leaks?

 

[cntchds]

Come on guys. I would appreciate either a "you should be good" or a "check this first". :knuppel2:

Or is this kinda up for grabs kinda deal?