Rx Catch Can sucking sound - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ssmike · 03-08-2011, 08:09 PM

OK guys with catch cans, I installed an Rx catch can a couple weeks ago. Today I had the hood open and noticed a sucking sound from the side where the catch can is. Is this normal? Kinda sounds like a vacuum leak. I check both hoses and they're attached OK. Thanks!

InvaderMoose · 03-08-2011, 10:17 PM

If I'm imagining the same "sucking sound" that you are, then yes, it's okay.
I thought I had a loose bearing, so I took it into RX and was told it was actually a noise the catch can was making, which shows its doing.. Something (working correctly). If you squeeze shut one of the hoses for a second, it should stop the noise until you release.

I'm sure SC1250 can explain it more in-depth, but the sound is normal.

Rockslam · 03-09-2011, 12:12 AM

Could the valve on the bottom be open? Or perhaps one of the fittings it leaking on the can , not the hose?

ssmike · 03-09-2011, 06:56 AM

Is the valve shut when it is full clockwise (looking from underneath) as a screw would be, or full counterclockwise?

n116ebo · 03-09-2011, 07:07 AM

Most pitcock drains open and let what ever run out when you turn it clock-wise. When you turn it counter clock-wise it will seal and let nothing drain. I am expecting my rx can any day.

ssmike · 03-09-2011, 07:09 AM

In that case mine is wide open. Maybe that's why it's so loud?

gahammerle · 03-09-2011, 08:25 AM

SC2150's install instructions state a slight buzz or rattle while running is normal.

Mr_Draco · 03-09-2011, 08:28 AM

Quote:

Originally Posted by ssmike

In that case mine is wide open. Maybe that's why it's so loud?

Take a look at it. Is it all the way out or is it screwed all the way in? It's closed if it's all the way out. If it's screwed in then it's open.

And yes this would make it louder then normal.

ssmike · 03-09-2011, 08:40 AM

Yea I think mine is all the way in which is prob causing the sucking sound. I'll check it tonight after work! Thanks for your help!

Smart Line · 03-09-2011, 07:49 PM

sorry guys catch a can......somthing making a sucking sound..in a camaro...
with my car gone to the shop you all are killing me.lol
P.S. will have RX can when it returns.

ssmike · 03-10-2011, 07:37 AM

Update: I started the car last night and let it warm up for a couple minutes. The sucking sound was gone. I checked my spicket and it was turned all the way in (open). So I turned it all the way out (closed). So, I don't know what was causing the sucking sound.

Only difference is the night I heard the sound was after driving for an hour. It was raining last night so I didn't want to take it out to get up to temp.

03-08-2011, 08:09 PM	#1
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	Rx Catch Can sucking sound OK guys with catch cans, I installed an Rx catch can a couple weeks ago. Today I had the hood open and noticed a sucking sound from the side where the catch can is. Is this normal? Kinda sounds like a vacuum leak. I check both hoses and they're attached OK. Thanks!

03-08-2011, 10:17 PM	#2
InvaderMoose Drives: 2010 2SS/RS CGM Join Date: Apr 2010 Location: N/A Posts: 958	If I'm imagining the same "sucking sound" that you are, then yes, it's okay. I thought I had a loose bearing, so I took it into RX and was told it was actually a noise the catch can was making, which shows its doing.. Something (working correctly). If you squeeze shut one of the hoses for a second, it should stop the noise until you release. I'm sure SC1250 can explain it more in-depth, but the sound is normal. __________________ Engine/Appearance: 530 RWHP Whipple supercharger, Full JBA Exhaust, Ported TB, Cold Air Inductions & ADM Scoop /Complete new paint, 20" Forgestar F14s, Sinister hood, SLP Spoiler, AAC Halos, P13W Fogs

03-09-2011, 12:12 AM	#3
Rockslam The Noob Drives: 2006 QSM GTO Join Date: Nov 2010 Location: Florida Posts: 141	Could the valve on the bottom be open? Or perhaps one of the fittings it leaking on the can , not the hose? __________________

03-09-2011, 08:25 AM	#7
gahammerle Drives: 2010 Camaro LS M6 Inferno Orange Join Date: May 2010 Location: Lebanon, OH Posts: 1,672	SC2150's install instructions state a slight buzz or rattle while running is normal. __________________ Gordy Injen CAI / Solo Mach-X LLT / Solo High-flow res-cats / Barton short shifter / RX Catch Can / RPI Gills / 35% tint / LED Footwell Lighting Front & Rear / Pedders Street 1 / Pedders steering rack bushing / SS struts / Pfadt drop springs / VMax Ported Throttle Body / Spohn Toe Rods / Spohn Trailing Arms / Trifecta Tune / MACE 25mm Intake Spacers Find me on Facebook: http://www.facebook.com/gahammerle

03-09-2011, 07:49 PM	#10
Smart Line Drives: 2011 Blue1SSRS 623RWHP, 02 vette Join Date: Aug 2010 Location: Richmond VA Posts: 1,308	sorry guys catch a can......somthing making a sucking sound..in a camaro... with my car gone to the shop you all are killing me.lol P.S. will have RX can when it returns. __________________ 2002 Vette (stock) *Team LS-3*

03-09-2011, 06:56 AM	#4
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	Is the valve shut when it is full clockwise (looking from underneath) as a screw would be, or full counterclockwise?

03-09-2011, 07:07 AM	#5
n116ebo n116 Drives: 2010 2SS YELLOW TRANSFORMER AUTO Join Date: Mar 2010 Location: SAN ANGELO TX Posts: 633 View My Garage	Most pitcock drains open and let what ever run out when you turn it clock-wise. When you turn it counter clock-wise it will seal and let nothing drain. I am expecting my rx can any day.

03-09-2011, 07:09 AM	#6
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	In that case mine is wide open. Maybe that's why it's so loud?

03-09-2011, 08:40 AM	#9
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	Yea I think mine is all the way in which is prob causing the sucking sound. I'll check it tonight after work! Thanks for your help!

03-10-2011, 07:37 AM	#11
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	Update: I started the car last night and let it warm up for a couple minutes. The sucking sound was gone. I checked my spicket and it was turned all the way in (open). So I turned it all the way out (closed). So, I don't know what was causing the sucking sound. Only difference is the night I heard the sound was after driving for an hour. It was raining last night so I didn't want to take it out to get up to temp.

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