Loud vacuum sound from catch can install - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Sequim Snake · 03-29-2013, 01:03 AM

Hey guys,
I'm not sure if this is really a problem or not, just needing some "piece of mind"
I installed my elite catch can and have out about 1000 miles on it. The other day I opened the hood to help someone jump start their car and could hear a really loud vacuum sound. I traced it to the catch can tubing. I didn't find any leaks but it just sounded like a abnormally loud vacuum sound. Is this normal?

-Ben

intensifi · 03-29-2013, 09:04 AM

Probably normal.

The input tube does produce flow noise.

Are you running with the standard PCV barb or an enlarged one? The enlarged PCV barb makes the input hose sound even louder.

SSDan · 03-29-2013, 09:42 AM

My Mike Norris can did that after I drained it the first time and discovered two days later that I had turned the drain valve the wrong way when finished and it was full open instead of full closed.

The vacuum was so strong it about sucked my finger up into the can when I checked it and found the problem.

I don't know if the elite can has the same type of drain valve but you might check that.

Sequim Snake · 03-29-2013, 03:17 PM

It's the normal barb, and the elite can doesn't have the drain valve, you just unscrew it. Good to hear that it is probably normal, I'm kinda surprised no one has posted this as a potential problem. I come from a turbo background where any sort of unusual vacuum noise is usually a bad thing

FanDamNCSU · 09-27-2013, 04:46 PM

I just installed my Elite and ran into the same issue. Here is a link to the noise:

It's not so bad with the engine cover on, however, when I take the cover off it sounds pretty loud. I'll drop an email to Elite and see what they think.

Magilla gorilla · 09-27-2013, 06:13 PM

Be careful when jump starting cars, you could damage the computer

FanDamNCSU · 10-01-2013, 10:11 PM

Anybody else have any input on this issue? I have yet to hear back from Elite.

DFWHD · 10-02-2013, 06:07 AM

Quote:

Originally Posted by FanDamNCSU

Anybody else have any input on this issue? I have yet to hear back from Elite.

This is normal - see either of these threads:

http://www.camaro5.com/forums/showth...22#post6828222

http://www.camaro5.com/forums/showth...=280495&page=3

FanDamNCSU · 10-02-2013, 08:11 AM

Thanks!

JDP Sales · 10-02-2013, 04:24 PM

Some sound is normal. Just make sure you used some Teflon tape on the fittings and the O ring on the can is in place.

Best regards,

Tyler
888-308-6007

Muddflap · 10-02-2013, 04:38 PM

I might be wrong but I think a few others have had this issue. I think I read that one guy replaced the hose with a better vacuum hose and it fixed his problem. Ask in the thread called V8 help desk. It was in there that I was reading about it.

03-29-2013, 01:03 AM	#1
Sequim Snake Drives: 2012 Shelby GT500, 2013 Camaro LS Join Date: Jan 2013 Location: Sequim Posts: 9	Loud vacuum sound from catch can install Hey guys, I'm not sure if this is really a problem or not, just needing some "piece of mind" I installed my elite catch can and have out about 1000 miles on it. The other day I opened the hood to help someone jump start their car and could hear a really loud vacuum sound. I traced it to the catch can tubing. I didn't find any leaks but it just sounded like a abnormally loud vacuum sound. Is this normal? -Ben

03-29-2013, 09:04 AM	#2
intensifi Drives: '12 2LT Convertible Join Date: Mar 2012 Location: Belmont, California Posts: 1,701	Probably normal. The input tube does produce flow noise. Are you running with the standard PCV barb or an enlarged one? The enlarged PCV barb makes the input hose sound even louder. __________________ Mods: GM Locking Gas Cap, RS License Plate Frame, SS Brembos, ZL1 FrontEnd, 14/15 Convertible Top

03-29-2013, 09:42 AM	#3
SSDan Drives: 2016 1SS 6MT NPP Join Date: Feb 2010 Location: Lake Murray, SC Posts: 2,245 View My Garage	My Mike Norris can did that after I drained it the first time and discovered two days later that I had turned the drain valve the wrong way when finished and it was full open instead of full closed. The vacuum was so strong it about sucked my finger up into the can when I checked it and found the problem. I don't know if the elite can has the same type of drain valve but you might check that. __________________ 2016 Camaro 1SS Hyper Blue 6MT NPP 2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold)

10-01-2013, 10:11 PM	#7
FanDamNCSU Drives: 2010 CGM 2SS/RS - L99 Join Date: Mar 2013 Location: Southern Pines, NC Posts: 197	Anybody else have any input on this issue? I have yet to hear back from Elite. __________________ 2010 CGM 2SS/RS - L99 --------------------------------- Performance: Vararam CAI, Vmax Ported Throttle Body, GM Performance Dual Mode Exhaust (NPP), JRE Tune, Hotchkis TVS Stage 2 Track Pack, Vitesse Paddle Shifters, Vitesse Throttle Controller Functional: Hex Vents, Elite Catch Can, WeatherTech Digital Fit Mats, Escort Passport Max Cosmetic: Heritage Grill, GM Splash Guards, ZL1 Rockers

10-02-2013, 08:11 AM	#9
FanDamNCSU Drives: 2010 CGM 2SS/RS - L99 Join Date: Mar 2013 Location: Southern Pines, NC Posts: 197	Thanks! __________________ 2010 CGM 2SS/RS - L99 --------------------------------- Performance: Vararam CAI, Vmax Ported Throttle Body, GM Performance Dual Mode Exhaust (NPP), JRE Tune, Hotchkis TVS Stage 2 Track Pack, Vitesse Paddle Shifters, Vitesse Throttle Controller Functional: Hex Vents, Elite Catch Can, WeatherTech Digital Fit Mats, Escort Passport Max Cosmetic: Heritage Grill, GM Splash Guards, ZL1 Rockers

03-29-2013, 03:17 PM	#4
Sequim Snake Drives: 2012 Shelby GT500, 2013 Camaro LS Join Date: Jan 2013 Location: Sequim Posts: 9	It's the normal barb, and the elite can doesn't have the drain valve, you just unscrew it. Good to hear that it is probably normal, I'm kinda surprised no one has posted this as a potential problem. I come from a turbo background where any sort of unusual vacuum noise is usually a bad thing

09-27-2013, 06:13 PM	#6
Magilla gorilla Drives: 2012 45th Edition 2LT RS,2005 Tahoe Join Date: Mar 2012 Location: Henderson Nevada Posts: 1,200 View My Garage	Be careful when jump starting cars, you could damage the computer

10-02-2013, 04:24 PM	#10
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	Some sound is normal. Just make sure you used some Teflon tape on the fittings and the O ring on the can is in place. Best regards, Tyler 888-308-6007

10-02-2013, 04:38 PM	#11
Muddflap Drives: 2010 Camaro SS Join Date: Apr 2013 Location: Longview, Tx Posts: 797	I might be wrong but I think a few others have had this issue. I think I read that one guy replaced the hose with a better vacuum hose and it fixed his problem. Ask in the thread called V8 help desk. It was in there that I was reading about it. __________________ TSP 1 7/8 LT, ADM Race Cold Air w/ Race Scoop, GPI SS3 LS3 Cam, Powerbond UD, 3.91 Gears, GPI Posi Mod. 498RWHP/451RWTQ