Catch can question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SIM2LS13 · 03-21-2014, 01:54 PM

Just a quick question for everyone..... Yesterday I had my first oil change, got it done at the dealer. When I got home I opened the hood while the engine was idling and I heard a loud hissing noise that sounded like it was coming from the catch can. I was able to make the sound stop by squeezing the hose coming into the catch can. Is this a normal sound? I've never heard it while the hood was closed.

Ehmsea · 03-21-2014, 02:14 PM

sounds like the drain valve is open. turn the wing nut to close the valve, should be good to go...

Zig Zag · 03-21-2014, 03:54 PM

The OP has an Elite catch can, no drain valve.
From what I've read here on the forum the hissing sound is normal.
Maybe someone with some more experience will chime in....

6bangerBOOM · 03-21-2014, 04:19 PM

Do you have hose clamps on both sides of 3/8" fuel lines you're running to it? You should hear a little hissing with the softer fuel line. Unless you throw a cell you're probably okay. Make sure everything is secured nice and tightly. Tight is right.

RobertRS · 03-21-2014, 04:37 PM

Quote:

Originally Posted by 6bangerBOOM

Do you have hose clamps on both sides of 3/8" fuel lines you're running to it? You should hear a little hissing with the softer fuel line. Unless you throw a cell you're probably okay. Make sure everything is secured nice and tightly. Tight is right.

Fuel lines?

skibik · 03-21-2014, 05:37 PM

I thought mine had a problem also. It sounds like a very bad vacuum leak. Contacted Elite and they replied back asking if my hoses were routed according to the picture or link they sent. I did respond with a yes but they never got back to me after that reply. I am gathering that it is just the volume of air being sucked through the engine and PCV system by the hose connected to the airbox on the clean side. Just my thought anyway.

Dean.

JDP Sales · 03-21-2014, 06:01 PM

Did you use Teflon tape on the threads of the fittings? Are your clamps in place and secure?

Some sound is normal, but if you said no to either of the above questions, that is likely your answer.

Best regards,

Tyler
888-308-6007

nyrfan · 03-21-2014, 06:19 PM

A slight hissing sound is normal, no worries.

It's just the airflow through the rubber hoses.

Sent from my AGM, 2SS/RS

6bangerBOOM · 03-21-2014, 06:34 PM

Quote:

Originally Posted by RobertRS

Fuel lines?

Yeah, most catch can installs require the use of 3/8" hose, which is usually used for fuel. My bad on the wording that's just what I personally refer to the stuff as!

RobertRS · 03-21-2014, 07:07 PM

Quote:

Originally Posted by 6bangerBOOM

Yeah, most catch can installs require the use of 3/8" hose, which is usually used for fuel. My bad on the wording that's just what I personally refer to the stuff as!

10-4 ...No big woop. Life is good.

SIM2LS13 · 03-22-2014, 01:42 PM

Quote:

Originally Posted by JDP Tyler

Did you use Teflon tape on the threads of the fittings? Are your clamps in place and secure?

Some sound is normal, but if you said no to either of the above questions, that is likely your answer.

Best regards,

Tyler
888-308-6007

Yea I used Teflon tape on the threads, and the clamps are secure. I guess the sound is normal, I just never really had the hood open while the engine was running to hear it before the other day. Thanks for the replies everyone.

8863 · 03-24-2014, 12:29 PM

I'm leaning toward the purchase of a catch can for my 2013 Camaro's LFX engine. I will probably buy one from Elite Engineering. However, the hissing sound that some folks speak of on this forum after installing a catch can gives me some concern. Can the hissing sound be heard with the hood closed? Can it be heard in the passenger compartment? Since many different posts have popped up over the last several months about the hissing sound, has Elite Engineering come up with a design that would eliminate the hiss?

SIM2LS13 · 03-24-2014, 02:03 PM

I have never heard the hiss from inside the passenger compartment. I only heard it when I opened the hood while the engine was running.

nyrfan · 03-24-2014, 02:24 PM

Quote:

Originally Posted by 8863

I'm leaning toward the purchase of a catch can for my 2013 Camaro's LFX engine. I will probably buy one from Elite Engineering. However, the hissing sound that some folks speak of on this forum after installing a catch can gives me some concern. Can the hissing sound be heard with the hood closed? Can it be heard in the passenger compartment? Since many different posts have popped up over the last several months about the hissing sound, has Elite Engineering come up with a design that would eliminate the hiss?

All catch cans hiss, it's from the hoses. And no, you cannot hear it inside the cabin. In fact as the above poster stated you can only hear it with the hood up.

Sent from my AGM, 2SS/RS

03-21-2014, 01:54 PM	#1
SIM2LS13 Drives: 2013 2LS SIM Join Date: Aug 2013 Location: Las Vegas, NV Posts: 145	Catch can question Just a quick question for everyone..... Yesterday I had my first oil change, got it done at the dealer. When I got home I opened the hood while the engine was idling and I heard a loud hissing noise that sounded like it was coming from the catch can. I was able to make the sound stop by squeezing the hose coming into the catch can. Is this a normal sound? I've never heard it while the hood was closed. __________________ *MRR M228 wheels* *20x10 Nitto Invo 275/40* *20x11 Nitto Invo 315/35* *Apex 1.25" Drop Springs* *Cold Air Inductions intake* *Elite Engineering catch can* *MRT v2 exhaust* *Four pack gauges* *OEM ZL1 front bumper* *OEM ZL1 side rockers* *OEM ZL1 rear diffuser* *OEM ZL1 grille*

03-21-2014, 02:14 PM	#2
Ehmsea Drives: 2013 2SS RS Hurst NPP Join Date: May 2012 Location: Perrysburg, OH Posts: 233 View My Garage	sounds like the drain valve is open. turn the wing nut to close the valve, should be good to go... __________________ No Worries CAI Intake w/washer relocation and race scoop Ported Throttle Body (Polished) Kooks LT stepped headers 1-3/4 to 1-7/8 High Flow Cats Livernois Motorsports Stage 2c Cam Package https://www.youtube.com/watch?v=AKXyCyBh9BU Hill Start Assist Delete

03-21-2014, 06:19 PM	#8
nyrfan Let's go Rangers! Drives: 13' AGM 2SS/RS L99 Join Date: Jun 2011 Location: Orlando, FL Posts: 10,742 View My Garage	Catch can question A slight hissing sound is normal, no worries. It's just the airflow through the rubber hoses. Sent from my AGM, 2SS/RS __________________ Soprano 4/1/00-6/14/11, Gone but NEVER forgotten! FSP tuned: 377/389

03-24-2014, 02:03 PM	#13
SIM2LS13 Drives: 2013 2LS SIM Join Date: Aug 2013 Location: Las Vegas, NV Posts: 145	I have never heard the hiss from inside the passenger compartment. I only heard it when I opened the hood while the engine was running. __________________ *MRR M228 wheels* *20x10 Nitto Invo 275/40* *20x11 Nitto Invo 315/35* *Apex 1.25" Drop Springs* *Cold Air Inductions intake* *Elite Engineering catch can* *MRT v2 exhaust* *Four pack gauges* *OEM ZL1 front bumper* *OEM ZL1 side rockers* *OEM ZL1 rear diffuser* *OEM ZL1 grille*

03-21-2014, 03:54 PM	#3
Zig Zag Drives: 2014 1LT Join Date: Jan 2014 Location: USA Posts: 226	The OP has an Elite catch can, no drain valve. From what I've read here on the forum the hissing sound is normal. Maybe someone with some more experience will chime in....

03-21-2014, 04:19 PM	#4
6bangerBOOM Drives: 2016 1SS SW Join Date: Jun 2013 Location: N/A Posts: 1,443	Do you have hose clamps on both sides of 3/8" fuel lines you're running to it? You should hear a little hissing with the softer fuel line. Unless you throw a cell you're probably okay. Make sure everything is secured nice and tightly. Tight is right.

03-21-2014, 05:37 PM	#6
skibik Guest Drives: bbbbbb Join Date: Dec 2012 Location: bfe Posts: 713	I thought mine had a problem also. It sounds like a very bad vacuum leak. Contacted Elite and they replied back asking if my hoses were routed according to the picture or link they sent. I did respond with a yes but they never got back to me after that reply. I am gathering that it is just the volume of air being sucked through the engine and PCV system by the hose connected to the airbox on the clean side. Just my thought anyway. Dean.

03-21-2014, 06:01 PM	#7
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	Did you use Teflon tape on the threads of the fittings? Are your clamps in place and secure? Some sound is normal, but if you said no to either of the above questions, that is likely your answer. Best regards, Tyler 888-308-6007

03-24-2014, 12:29 PM	#12
8863 Drives: 2013 Camaro 2LT RS Join Date: Jan 2013 Location: Ft Wayne Indiana Posts: 41	I'm leaning toward the purchase of a catch can for my 2013 Camaro's LFX engine. I will probably buy one from Elite Engineering. However, the hissing sound that some folks speak of on this forum after installing a catch can gives me some concern. Can the hissing sound be heard with the hood closed? Can it be heard in the passenger compartment? Since many different posts have popped up over the last several months about the hissing sound, has Elite Engineering come up with a design that would eliminate the hiss?