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1jzgte No Boost

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Old 03-09-11, 10:51 AM
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Superjatt
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Exclamation 1jzgte No Boost

Recently I flushed my radiator and I "Think" I have burped it correctly. But now the car is not boosting and I could hear Boiling water under my hood, Can the cooling system not being burped be a cause to my car not giving me any boost love?
or Would it be a simple Boost Leak?
I have checked all hoses and and pipes to make sure there is nothing coming out incorrectly, when i Rev i can hear an Sound that doesnt belong but cannot put my finger on it
Please Help
Old 03-09-11, 11:34 AM
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6SOARER
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Sounds like a case of some dead twins. J/K :P



Boost leak. Double Check all your couplings and piping
Old 03-09-11, 01:04 PM
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I checked everything twice. Would a open wastegate do this too. Thers a sound coming from that general direction
Old 03-09-11, 07:00 PM
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Bump. Anyone know how to check the wastegates.
Old 03-09-11, 07:46 PM
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SH_JZZ30
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Do you have a boost gauge hooked up? Does it read vacuum or anything?
Old 03-09-11, 07:56 PM
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No I dont have one hooked up yet.
The bov used to work fine. But now its barely working. You can hear it but not like before.
Old 03-10-11, 05:09 AM
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stockhatch
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Strange indeed. Seems like one of the gates must be stuck open, but why that would happen after a coolant flush I can't say.

I know on the 2jz you can get to the front wastegate to test it. Look at the arm to see if it looks extended. If not, put a hand pump on the diaphragm nipple and start pumping. It should start to extend the arm at around 7-8psi and be fully open by I think 10 or 11.

I want to say most wastegates will fail CLOSED since they close under spring pressure. Maybe you blew a chunk of something through a turbo(hopefully not turbine blades) and it is lodged in the wastegate port.
Old 03-10-11, 05:42 AM
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I will do this First thing, I think I might have blown in something. The weird thing is the night before i went to sleep the motor was working perfectly, the BOV was loud and strong. The next morning everything went down.
Will check with a hand pump today.
Thanks.
Old 03-10-11, 06:35 AM
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Triple C
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get someone to run the car for you and look then. your bov will make the sound if it is that but if it is the wastegate(s) then it will just pass right threw wiith no boost. i would try and get in there and try to move the arm that controls the wastegates. its closest to the Block on the inside of the turbos(sucks) you will want to try and move this before you start the car and have it warm. ITS CRAZY IF YOUR Wastegates are stuck open
Old 03-10-11, 07:15 AM
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Interesting, I'm currently having the same problem and will be checking it out this weekend as well.

Goodluck
Old 03-10-11, 02:12 PM
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OK, so i was looking around the motor, and I found a hose unplugged. Its a hose that is a part of the heater core or something I will post pictures right now.
Old 03-11-11, 06:12 PM
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Titanium
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Did that end up changing anything? The weird part is my problem happened when I swapped out a leaking radiator almost like yourself. I'm hoping to get under the car tomorrow morning to see.

I did notice by hand that my center section of the rear turbo that there was a good amount of oil so I'm not sure if my return is loose as well.
Old 03-12-11, 02:10 AM
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Mine just started boosting today, I messed with a bunch of little things, I undid all the hoses and couples and re did them and make sure they were tight Now its boosts like ffrreewwoooooooosh!
<3
Now to deal with the damn heating problem..
Old 03-12-11, 12:19 PM
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Nice. the TT vac hoses are a PITA to deal with once the motor is in.
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