Waste gate out of wack

TheCoolX3 · 12-18-2018, 04:44 PM

Installed the new boost solenoid and set the waste gate again. Still making the hissing noise. Not sure where to go from here.

________ · 12-18-2018, 06:23 PM

Quote:

Originally Posted by TheCoolX3

Installed the new boost solenoid and set the waste gate again. Still making the hissing noise. Not sure where to go from here.

Post #14

TheCoolX3 · 12-18-2018, 06:30 PM

Quote:

Originally Posted by OnerDriver

Quote:

Originally Posted by TheCoolX3

Installed the new boost solenoid and set the waste gate again. Still making the hissing noise. Not sure where to go from here.

Post #14

[QUOTE=OnerDriver;24131288]

I don't think it's a turbo issue. I checked for play and there was none at all. No fins (that i could see) we're damaged in anyway. I think the next thing to do is check for vac and boost leaks. I really only hear the hissing in comfort mode before boost comes on, as soon and boost hits the hissing goes away and it sounds beautiful!

Pure turbos is the plan eventually but not just yet....

________ · 12-18-2018, 06:43 PM

[QUOTE=TheCoolX3;24131317]

Quote:

Originally Posted by OnerDriver

Quote:

Originally Posted by TheCoolX3

Installed the new boost solenoid and set the waste gate again. Still making the hissing noise. Not sure where to go from here.

Post #14

Quote:

Originally Posted by OnerDriver

I don't think it's a turbo issue. I checked for play and there was none at all. No fins (that i could see) we're damaged in anyway. I think the next thing to do is check for vac and boost leaks. I really only hear the hissing in comfort mode before boost comes on, as soon and boost hits the hissing goes away and it sounds beautiful!

Pure turbos is the plan eventually but not just yet....

I don't think you should be looking for play in the axle...

It's a wastegate issue that, to resolve, you will need a new one.

TheCoolX3 · 12-24-2018, 09:10 PM

Boost comes on high RPM now but really is laking below 4k. Ideas? Going to check for boost leaks with a leak tester. Anyone know an easy way to check for vacuum leaks?

http://www.bootmod3.net/log?id=5c1bf73fc090c6018f1825bf

TheCoolX3 · 03-28-2019, 08:36 AM

New turbo. Fixed.

doodlebro · 03-28-2019, 08:48 AM

A new turbo fixed this? Do you have more details?

TheCoolX3 · 03-28-2019, 08:53 AM

Quote:

Originally Posted by doodlebro

A new turbo fixed this? Do you have more details?

I have my factory turbo, I was playing around with it a bit, it had an insane amount of shaft play, could not get the waste shut completely and there was tons of play in the waste gate.

After replacing everything that could cause the issue that wasn't the turbo I was confident that it finally had to be an issue with the turbo itself.

I installed a new turbo and was fixed immediately.

TheCoolX3 · 08-30-2019, 09:43 PM

Wanted to make an update to this.

New turbo seemed better but I think I placeboed myself and on the first cold start I heard the hiss again and the hiss at low boost. I do not get the noise in high boost and i don't get it under light acceleration in sport modes. Still having the issue.

I'll write out everything I've done over the past months to remedy the issue to no avail.
New boost solenoid
New FTP charge pipes
New hose clamps and silicon joiners
New turbo
New GFB DV
New VRSF downpipe
Supersprint midpipe
New afe intake
Inspected and tested for boost and exhaust leaks, none found.
Ensured there is no metal on metal contact in the exhaust
New downpipe gasket
New vband clamps
Heat wrapped the downpipe
Attempted tuning out the issue

If you guys have any suggestions please shoot them my way! The loud hiss makes the car a pain and embarrassing to drive in comfort mode. I've found one other X3 owner with similar mods that has the same symptoms.

E36M3 · 12-09-2023, 10:53 PM

Did this ever get fixed?

12-18-2018, 04:44 PM	#23
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	Installed the new boost solenoid and set the waste gate again. Still making the hissing noise. Not sure where to go from here. __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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12-24-2018, 09:10 PM	#27
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	Boost comes on high RPM now but really is laking below 4k. Ideas? Going to check for boost leaks with a leak tester. Anyone know an easy way to check for vacuum leaks? http://www.bootmod3.net/log?id=5c1bf73fc090c6018f1825bf __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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03-28-2019, 08:36 AM	#28
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	New turbo. Fixed. __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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03-28-2019, 08:48 AM	#29
doodlebro Lieutenant 121 Rep 470 Posts Drives: '17 X3 35i Join Date: Mar 2017 Location: Denver iTrader: (1)	A new turbo fixed this? Do you have more details? __________________ Current mods Rockford Fosgate P3 // JBL MS-A5001 // MiniDSP Ultra Racing Strut Brace // AFe Pro Dry S // PS2 // Custom Inlet // DV+ // FTP Boost Pipes // VRSF Race IC // VRSF Downpipe // ECUTek Protune @ 5280'
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08-30-2019, 09:43 PM	#31
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	Wanted to make an update to this. New turbo seemed better but I think I placeboed myself and on the first cold start I heard the hiss again and the hiss at low boost. I do not get the noise in high boost and i don't get it under light acceleration in sport modes. Still having the issue. I'll write out everything I've done over the past months to remedy the issue to no avail. New boost solenoid New FTP charge pipes New hose clamps and silicon joiners New turbo New GFB DV New VRSF downpipe Supersprint midpipe New afe intake Inspected and tested for boost and exhaust leaks, none found. Ensured there is no metal on metal contact in the exhaust New downpipe gasket New vband clamps Heat wrapped the downpipe Attempted tuning out the issue If you guys have any suggestions please shoot them my way! The loud hiss makes the car a pain and embarrassing to drive in comfort mode. I've found one other X3 owner with similar mods that has the same symptoms. __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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12-09-2023, 10:53 PM	#32
E36M3 Private 53 Rep 77 Posts Drives: 97 M3, '14 335i, '12 X3 35i Join Date: Jan 2018 Location: Here iTrader: (0)	Did this ever get fixed?
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