Boost guage -> Whistle = boost leak. HELP! - Subaru WRX Forum
 
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post #1 of 10 Old 02-17-2010, 12:01 AM Thread Starter
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Boost guage -> Whistle = boost leak. HELP!

09wrx

OK here’s my situation. I bought an auto meter boost gauge and installed it the other day. First off the line they provided to tap into my vacuum line was a skinny plastic line that kinked up. So I went to home depot and bought vinyl line ( it’s the clear type of pressure line like the ones you use for your fish tank if that make any sense) Anyways we cut the vacuum line next to the valve and attached a plastic tee connector to fit 1/4 inch tubing.

Problem: Now whenever I reach 10+ psi I get this wheezing or whistle sound. Also while we were installing the gauge a line underneath the intercooler a tube came off (atached to the vac line) but my friend reached underneath and plugged it back in. At least I think its properly back on the nipple it came off (what’s weird is that hose underneath the intercooler had no clamp or anything holding it.).

Any suggestions on what is causing this noise?
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post #2 of 10 Old 02-17-2010, 09:51 AM
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Is the gauge mechanical or electric? It could be leaking at the gauge somehow if it's mechanical. I would start by putting some small hose clamps at all the connections at the t-connector and see if that seals it up better.
I have the same t-connection off of the recirc valve and have had no issues with leaking and I don't run any clamps on mine. I did use fuel line as my tube to the gauge though, a lot thicker and more heavy-duty than that clear hose.

-Chris
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post #3 of 10 Old 02-17-2010, 11:04 AM Thread Starter
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Its medhanical. I already tried putting clamps on the tee connector,. Actually the first time i didnt and the vac was sitting at aount 15. When i put the clamps on it was at 17.
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post #4 of 10 Old 02-17-2010, 08:33 PM
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It has to be a leak somewhere. Try checking connection to gauge & connections to bpv. If not those I would reccomend getting a new hose like the one that came with the gauge not a fish tank tube. Also double check that line under the intercooler tube.
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post #5 of 10 Old 02-18-2010, 08:42 AM
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^ YEs, use the line supplied Orrrrrrrr ditch it and buy an electrical gauge.

Paul
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post #6 of 10 Old 02-24-2010, 11:29 AM Thread Starter
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lol fixed the problem . BTW the fish tank tube works awsome. No leaks what so ever. Question does the electrical guage use a vac tube to?
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post #7 of 10 Old 02-24-2010, 11:39 PM
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How did you fix it?

Kirt
378awhp/373wtq Custom Dom 3 & CBRD tuned 2006 STI.
"When in doubt...flat out" - Colin McRae
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post #8 of 10 Old 02-24-2010, 11:48 PM Thread Starter
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I used an boost leak tester. My buddy made it. basically i take off my intake and put in this cup like thing and pump air into it. From there i just listen and i found my leak. lol pretty cool stuff
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post #9 of 10 Old 03-01-2010, 06:40 AM
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Quote:
Originally Posted by thomas3322 View Post
lol fixed the problem . BTW the fish tank tube works awsome. No leaks what so ever. Question does the electrical guage use a vac tube to?
Yes they do.... it just goes into a sender unit (supplied).

Paul
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2007 STi totaled
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post #10 of 10 Old 03-01-2010, 09:44 AM Thread Starter
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maybe ill try that in the future. Thanks!
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