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06 pt gt boost leaks

 
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Old 24 Jan 2014, 11:47 am
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Default 06 pt gt boost leaks

Hey all, been boost leak testing my car for a good 3 days now and can't seem to find the last leaks. I spray soapy water everywhere and everything is sealed.
Before I started this, my boost was sporadic. Never stayed the same, spiked where it wanted to, and the dsp had no control over where it would spike or fall.
Now i typically spike 14-16 and drop to 11-13 depending on the gear and how fast it builds. I know I still have a leak because I can spike, fall and then it'll build back up to what I spiked at and hold that until 5k rpm. I have the mopar blow off plate and stock surge still, and during the Blt I can't get it to seal. I even td it into the throttle body line and the surge still opens up. Is my surge valve bad, or what should I do?
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Old 24 Jan 2014, 03:30 pm
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Default Re: 06 pt gt boost leaks

Have you tested around the intake manifold gasket?
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Old 24 Jan 2014, 08:13 pm
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Default Re: 06 pt gt boost leaks

Yea I tested all around the intake and throttle body. It's defiantly the surge valve leaking. It blows the soapy water back out in a mist
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Old 24 Jan 2014, 11:50 pm
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Default Re: 06 pt gt boost leaks

Then get a new surge valve. I don't think they are too expensive.
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Old 25 Jan 2014, 01:19 am
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Default Re: 06 pt gt boost leaks

We'll I actually was just wondering if I had done the boost leak test right. I did it with the car off, car on, and then connected a line from the throttle body to the surge. And all three gave the same results
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Old 25 Jan 2014, 09:49 am
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Default Re: 06 pt gt boost leaks

From doing multiple boost leak tests on local SRT-4 owner's rides. I have only had 2 cars where the Mopar conversion plate actually didn't leak boost during the test.

Now is it leaking out of the holes of the Mopar plate? If so then you need a new paper gasket or invest in "The Right Stuff" by Permatex. Only a 30 minute cure time. The paper gasket wears out over time due to the heat. Auto stores usually sell the paper gasket by sheets and you can get a thicker paper gasket.

But if its leaking between the blue plate and the surgevalve, more then likely your surgevalve is warped or the diagphram is bad. They can go bad over time.

Boost leaks do suck, not looking to do one on mine here soon.
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Old 25 Jan 2014, 10:50 am
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Default Re: 06 pt gt boost leaks

We'll i rtvd both sides of the plate and it's installed correctly. It doesn't leak from around the plate, but from where it vents to the atmosphere. Even when I ran the line to the valve that should have closed the diaphram, it still leaked. So does that sound like my surge valve is bad? If I remove the plate and put the surge valve back to stock I won't leak any more will I?
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Old 25 Jan 2014, 03:35 pm
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Default Re: 06 pt gt boost leaks

Its a hit or miss man. What kind of RTV did you use? Did you properly let it cure. If its regular copper RTV there is a 24 hour cure time. You only needed to do it on one side since the rubber piece holds boost. Could just be a bad surgevalve too.

They came with a paper gasket originally. I would try that or just get rid of it all together since it really does nothing except give your car a cold. That will solve your issue completely. Working in that tight space would be a PITA to keep doing.
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Old 26 Jan 2014, 01:09 am
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Default Re: 06 pt gt boost leaks

we'll I went ahead and deleted the blow off plate. I installed the surge valve back on and I definantly hold boost better and spike higher. My gauge still shows I drop to ten around 5000 though. I'm to the point to where I'm about to go ahead and buy new hard pipes and rerun all my vacuum lines. I'm also starting to think my boost gauge is still bad though. Earlier it said I spiked over 20 psi and my gauge is a 30/20.
Also, my vacuum has been 14 with both of my gauges, is that right?
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Old 26 Jan 2014, 01:18 am
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Default Re: 06 pt gt boost leaks

Quote:
Originally Posted by Melition View Post
we'll I went ahead and deleted the blow off plate. I installed the surge valve back on and I definantly hold boost better and spike higher. My gauge still shows I drop to ten around 5000 though. I'm to the point to where I'm about to go ahead and buy new hard pipes and rerun all my vacuum lines. I'm also starting to think my boost gauge is still bad though. Earlier it said I spiked over 20 psi and my gauge is a 30/20.
Also, my vacuum has been 14 with both of my gauges, is that right?
Would be a waste of money to go hardpipes IMO. Unless you go big turbo and have to delete the surge valve. Or your factory pipes are bad.

Both your gauges? Which gauges? And to spike 20psi are you running a DSP tune or something?

Normal vacuum is 18-20 or so. Check your PCV valve to see if it is still in good shape?
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