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-   -   boost problems and it sounds weird too (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/boost-problems-sounds-weird-too-705649/)

Aeka GSR 11-18-07 10:19 AM

boost problems and it sounds weird too
 
I've been battling a lazy turbo switchover as well as a 9-5-9 pattern in a high gear (or a 5-5-5 in first). I checked around and under the UIM and really found nothing. Upon driving it again I noticed a sound that I don't think I've heard before:

The boost seems to be more violent sounding. It sounds much like a TV on white noise static mimiced by a person trying to make the noise with their mouth. It also could be described as turbulent wind through a plastic pipe. Is this normal sound or could this be related to my problems?

Smitter 11-18-07 12:36 PM

boost leak my friend.
check the couplers on your ic. piping.
specially the one coming directly off the y-pipe.

Aeka GSR 11-18-07 02:01 PM

I've looked for the obvious so far. I suppose i must look further.

4CN A1R 11-18-07 02:15 PM

when you took the uim off, how did the gasket look, was it in 1 piece? and i'd check the hoses below the intake box. there usually the ones that go first(excessive heat from turbos)

txturbogs 11-18-07 03:46 PM

I had the problem with the 1st FD. I looked, and tested valves, etc, before finally finding it was the plastic hose that connected to the stock IC. It was a very small crack, but enough to leak tons of air.

dgeesaman 11-18-07 04:33 PM


Originally Posted by Aeka GSR (Post 7525793)
I've looked for the obvious so far. I suppose i must look further.

Boost leaks are almost never obvious. Take the intake couplers out of the car to inspect them.

Smitter 11-18-07 04:47 PM

^^sorry i should have stated earlier that u must remove the y-pipe/ic coupler completely to find the split.

YOUWSH 11-18-07 09:52 PM

^ dito

Take the couplers off and look at it in the light especially the turbo/y pipe coupler. I had boost problems for almost a year and that was the culprit.

wb123 11-19-07 12:51 AM


Originally Posted by Aeka GSR (Post 7525299)
I've been battling a lazy turbo switchover as well as a 9-5-9 pattern in a high gear (or a 5-5-5 in first). I checked around and under the UIM and really found nothing. Upon driving it again I noticed a sound that I don't think I've heard before:

The boost seems to be more violent sounding. It sounds much like a TV on white noise static mimiced by a person trying to make the noise with their mouth. It also could be described as turbulent wind through a plastic pipe. Is this normal sound or could this be related to my problems?

I have the same problem with the same weird sound... car is away for the winter now..
let me knwo what you did to resolve this problem2@!@!@

wb123 11-19-07 12:54 AM


Originally Posted by txturbogs (Post 7526061)
I had the problem with the 1st FD. I looked, and tested valves, etc, before finally finding it was the plastic hose that connected to the stock IC. It was a very small crack, but enough to leak tons of air.

Hey interesting find there
what "hose" exactly ? is it the one that routes down to the Y pipe /turbos or the one that goes into the actual engine ? that had a small crack


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