Boost leaks in Odd Places

[oldman]

Also the vacuum line on the right side of the intake manifold when i pressurized from my LICP i was getting no pressure what so ever at the nipple on the far right of the intake manifold is that normal? if possible contact me on aim at screen name mastadogg2 or add me to your msn at [email protected] so i can discuss this with you easier.

Sorry I don't do IM and it's better if we keep it on this thread so others with the similar problem can also benefit from it.

Take a deep breath and start from the beginning again.

1. Pressure test again from the turbo inlet and licp then post both numbers.

2. In your original post you said you've checked the pcv, how?

3. I'll attempt to ask you one more time, what was the problem you had which led you to the pressure test?

Calm down and take it one step at a time, be as detail as you can.

 

[mastadogg2]

Sorry I don't do IM and it's better if we keep it on this thread so others with the similar problem can also benefit from it.

Take a deep breath and start from the beginning again.

1. Pressure test again from the turbo inlet and licp then post both numbers.

2. In your original post you said you've checked the pcv, how?

3. I'll attempt to ask you one more time, what was the problem you had which led you to the pressure test?

Calm down and take it one step at a time, be as detail as you can.

1. Turbo Inlet: 15psi, LICP: 13psi.

2. By checking the PCV I did the following; Unhooked the end of the PCV valve that went into the intake manifold, then blocked off the intake manifold nipple, then began to pressurize the system again and it still remained to leak through the valve cover breather.

3. What led me to wanting to do the pressure test was to remove all possible boost leaks because my car refused to go past 15-16psi, And before I used to boost 19+ and 16psi feels very slow compared to 19+ so i am not satisfied with the 16psi, so thats why I have attempted to fix all possible leaks.

I hope this is good enough information and I cant stress how much I appreciate your help.

-tom

 

[oldman]

1. Turbo Inlet: 15psi, LICP: 13psi.

Good, you can rule out the turbo seal.

2. By checking the PCV I did the following; Unhooked the end of the PCV valve that went into the intake manifold, then blocked off the intake manifold nipple, then began to pressurize the system again and it still remained to leak through the valve cover breather.

Good, I would change the pcv valve anyway since it's cheap and just incase if you have multiple leaks. It's also possible that it's stuck closed causing excessive crank case pressure which might be the original cause of all this.

3. What led me to wanting to do the pressure test was to remove all possible boost leaks because my car refused to go past 15-16psi, And before I used to boost 19+ and 16psi feels very slow compared to 19+ so i am not satisfied with the 16psi, so thats why I have attempted to fix all possible leaks.

Do not WOT anymore until you figure this out, you don't want to compound the problem by over spinning your turbo due to the leaks. If you must test run, keep it at bare minimum.

I hope this is good enough information and I cant stress how much I appreciate your help.

You're welcome, I do my best.

Post back after the compression test.

 

[mastadogg2]

Well just checked the PCV valve again and this time i sucked into the hose and the valve opened so its not stuck so there goes my luck on that. PCV valve functions perfect. Now I just pray its not something with the bottom end, I wont mind if its the valve seals.

Also when doing the test this time, I was pressurizing from the LICP. Where the PCV valve connects to the intake manifold nipple there was no air comming out of that tho which is not right is it? and system held 13psi again with the intake manifold nipple that the PCV valve goes into..

 

[oldman]

Also when doing the test this time, I was pressurizing from the LICP. Where the PCV valve connects to the intake manifold nipple there was no air comming out of that tho which is not right is it? and system held 13psi again with the intake manifold nipple that the PCV valve goes into..

First, licp = lower intercooler pipe so I think you meant uicp (upper). It's important that we keep the technical terms consistent so we don't get confused. If I'm reading this right, you are saying you remove the pcv hose from the manifold nipple and left it open and there was no air comming out of the nipple when you pressurize the system? If this is true, the passage must be clogged and the pcv will not vent at all. How is the other breather valve routed?

 

[mastadogg2]

No i ment lower intercooler piping. I was still pressurizing from the lower intercooler piping. I dont know if that makes a difference or not tho? But yes when I was pressurizing I had the nipple not covered on the intake manifold side that the pcv valve goes into and it was not getting no pressure what so ever comming from that nipple.

 

[Mike1992]

No i ment lower intercooler piping. I was still pressurizing from the lower intercooler piping. I dont know if that makes a difference or not tho? But yes when I was pressurizing I had the nipple not covered on the intake manifold side that the pcv valve goes into and it was not getting no pressure what so ever comming from that nipple.

Your intake manifold port is clogged. You need to pull off the intake manifold and clean it out. With it being clogged your crankcase cant breathe, which can and will build pressure in the crankcase causing smoke problems.

 

[mastadogg2]

Your intake manifold port is clogged. You need to pull off the intake manifold and clean it out. With it being clogged your crankcase cant breathe, which can and will build pressure in the crankcase causing smoke problems.

Are you positive? I dont want to rip apart the intake manifold for nothing, I want to absolutely make sure this is clogged before i go through all that time removing it.

 

[oldman]

But yes when I was pressurizing I had the nipple not covered on the intake manifold side that the pcv valve goes into and it was not getting no pressure what so ever comming from that nipple.

That's is not good at all.

How is the other breather valve routed?

We can speed this up a little if you answer my questions.

Also the vacuum line on the right side of the intake manifold when i pressurized from my LICP i was getting no pressure what so ever at the nipple on the far right of the intake manifold is that normal?

Do you mean the nipple which supplies pressure to the FPS (fuel pressure solenoid)?

 

[Mike1992]

You can try and poke somethign through the port to unclog it, but whatever it is will go into your combustion chambers. Your choice

 

[mastadogg2]

No the nipple where the PCV valve tube goes into on the intake, not the far right nipple for the FPS.

I have a valve cover breather so its not routed at all. here is a few pictures

www.estarlending.com/fusion/DSCN0001.JPG
www.estarlending.com/fusion/DSCN0002.JPG

 

[Mike1992]

Ok, get rid of the valve cover breather, those things clog like nobody's business unless you change them at every oil change or a little sooner. and read above on what do do about the nlocvked pcv port on the intake manny.

 

[mastadogg2]

Its not clogged, I just hooked up a tube to it and blew air through the tube with my mouth and it went through fine....................

 

[oldman]

No the nipple where the PCV valve tube goes into on the intake, not the far right nipple for the FPS.

No, I was quoting you from one of your previous posts where you claim you were not getting any pressure there as well. Do another pressure test and open up all the nipples on the intake manifold, pcv, bov and the fps. Mike is right about the pcv passage being clogged. If I remember correctly, the pcv, bov and fps passages are all inter connected within the intake manifold so let's make sure the pcv is the only one clogged.

I have a valve cover breather so its not routed at all. here is a few pictures

So at least you have one venting outlet. Have your dipstick pop out lately? Oil leaking out of the oil cap?

 

[mastadogg2]

No, I was quoting you from one of your previous posts where you claim you were not getting any pressure there as well. Do another pressure test and open up all the nipples on the intake manifold, pcv, bov and the fps. Mike is right about the pcv passage being clogged. If I remember correctly, the pcv, bov and fps passages are all inter connected within the intake manifold so let's make sure the pcv is the only one clogged.


So at least you have one venting outlet. Have your dipstick pop out lately? Oil leaking out of the oil cap?

Dipstick never popped out, But when I was doing the pressure test it was getting air comming out of it when i opened it to check. But once again the PCV isnt clogged, because i connected a tube to it and blew into it with my mouth and it went through fine.

I will go ahead and pressure test it and take all the tubes off teh intake manifold, but where should i be pressure testing it when i do this? or doesnt it matter? right now i have the pressure tester hooked into the lower piping.

 

[oldman]

Doesn't matter.

 

[mastadogg2]

Ok I just did another pressure test starting from the lower intercooler piping area again and I unhooked all the ports on the intake manifold, BOV,FPS,PCV and none were blowing out air and system held 13psi. Are you guys POSITIVE that the lower piping should pressurize the intake manifold? because if so I really have something clogged somewhere.

 

[oldman]

Ok I just did another pressure test starting from the lower intercooler piping area again and I unhooked all the ports on the intake manifold, BOV,FPS,PCV and none were blowing out air and system held 13psi. Are you guys POSITIVE that the lower piping should pressurize the intake manifold? because if so I really have something clogged somewhere.

Yes, if you want to be sure have someone hold the throttle open for you and repeat test.

 

[mastadogg2]

Alright Ill go do it again and wedge my bat inbetween my seat and gas pedal =) ill let you know with results what that does.

 

[mastadogg2]

No difference what so ever with the throttle pushed in, However I do want to confirm I have this pressure tester hooked up on the right side of the lower piping, Its hooked up going towards the Compressor area of the turbo and not the side mount intercooler side. I dont understand tho how im not getting no pressure what so ever into my intake manifold... What if i hook everything back up and do a pressure test from my Turbo inlet and i get pressure from the intake manifold? I honestly dont think I should be getting pressure from the intake manifold on a pressure test from the compressor side.. but thats why im here getting advice from you, because Im not sure of my problem.

 

[oldman]

No difference what so ever with the throttle pushed in, However I do want to confirm I have this pressure tester hooked up on the right side of the lower piping, Its hooked up going towards the Compressor area of the turbo and not the side mount intercooler side. I dont understand tho how im not getting no pressure what so ever into my intake manifold... What if i hook everything back up and do a pressure test from my Turbo inlet and i get pressure from the intake manifold? I honestly dont think I should be getting pressure from the intake manifold on a pressure test from the compressor side.. but thats why im here getting advice from you, because Im not sure of my problem.

You are getting pressure in the manifold, just not to the nipples. The only way the turbo is connected to the intake manifold is through your ic pipes so pressure test at the compressor inlet will not make any difference what so ever.

Let me sum up what you need to do from this point on.

1. Compression test.

2. Remove the intake manifold and try opening up those passages, it's not going to be easy so prepare yourself for picking up an used one.

3. Don't drive the car anymore until the intake manifold issue is taken care of.

 

[mastadogg2]

But this makes no sense, I can blow into the nipples so there not clogged...... before I do all this I want to make absolute sure this is necessary. Im going to reconnect the lower piping piping and pressurize from the turbo inlet and if i get pressure comming out of those nipples on the intake manifold then what does that mean? Im going to go do that right now I will be back with results.

 

[mastadogg2]

OK I just did a pressure test from the turbo inlet and all of the intake manifold ports have air going out of them, so there not clogged like i said before... now are you still gonna say the compressor side should fill the intake manifold with air? if so then i got some kind of clogging on the compressor side.. but that does not make no sense what so ever..

 

[oldman]

OK I just did a pressure test from the turbo inlet and all of the intake manifold ports have air going out of them, so there not clogged like i said before... now are you still gonna say the compressor side should fill the intake manifold with air? if so then i got some kind of clogging on the compressor side.. but that does not make no sense what so ever..

That doesn't make any sense what so ever. You're saying you get pressure out of those nipple when you start from the turbo compressor inlet but if you move the tester over to the beginning of the licp bypassing the turbo you get no pressure on those nipples? WTF
I think there's misunderstanding here some where.

 

[mastadogg2]

That doesn't make any sense what so ever. You're saying you get pressure out of those nipple when you start from the turbo compressor inlet but if you move the tester over to the beginning of the licp bypassing the turbo you get no pressure on those nipples? WTF
I think there's misunderstanding here some where.

Nope thats exactly what happens man, you just said it.. And I just got done buying a new PCV from autozone, the other one was a bit sticky to open. Still didnt fix the issue tho unfortunitly.