Ticking Sound After Dyno / LT Headers / CAI Installs

CamaRobinator · 03-21-2019, 05:46 PM

Good evening,

I recently took my car to a shop to install a CAI / Kooks 1 7/8 Long tube Off-Road headers on my 2018 Camaro SS. They then did a Dyno Tune afterwords. When I came t pick it up, I immediately noticed a loud ticking noise that would only get louder as you hit the gas. It's very noticeable and very annoying.

I was reading other forum posts and watching some videos and it seems that other people have had the same issue and think that it's the lifters and some think that its normal. These are mostly older posts though and had no resolution to them.

Here's a video I found that has a 100% match to the sound that I have:

I took it back to the shop and they said that the noise is normal for Camaros with LT Headers in them.

To me this sound is VERY annoying and I find it hard to believe that this is normal.

What do you guys think?

VAZL1 · 03-21-2019, 06:13 PM

It could be a lifter, but since they just installed headers i would lean towards an exhaust leak. Check for a leak where the header mounts to the heads. Also try re-torquing the header bolts.

CamaRobinator · 03-21-2019, 06:54 PM

They did that and said there was a very minor exhaust leak but that didn't change the noise at all after the fix.

CruzySS · 03-21-2019, 07:11 PM

Mine doesn't sound like that

VAZL1 · 03-22-2019, 04:06 AM

With the engine running and exhaust system hot verify, that the exhaust isn't making contact somewhere all the way back to the muffler. Could be a lifter, but i still have my doubts.

SSLandon · 03-25-2019, 01:10 PM

I too have this problem with same installs. Didn't happen at first but a couple months down the road it's got worse. Having my shop guy check it out this week. It is not a good sound even when I'm decelerating I can here it.

jeportera · 03-25-2019, 02:02 PM

Which gaskets did they use, OE or Cometic?

I'm having the same issue but plan on swapping the gaskets out when I get a moment with factory ones.

Fingersmoran · 08-13-2019, 11:58 PM

Did this ever get sorted? I have the exact same issue. Louder on the driver side, gets a bit worse as the car warms up. Only mod I have is Kooks Long tube headers and the GMPP intake. It’s driving me bonkers.

n1njam005e · 08-15-2019, 04:21 PM

I just ordered Kooks LT headers for my car...should I be concerned about this?

I am getting the install done at a garage though.....

geaux_tigerss · 08-16-2019, 06:42 AM

Quote:

Originally Posted by n1njam005e

I just ordered Kooks LT headers for my car...should I be concerned about this?

I am getting the install done at a garage though.....

Concerned? Not really. When you do headers (or any exhaust work) there is always the possibility of a leaks. It's just part of it. If you get one, you repair it, no big deal.

nancygrl · 08-16-2019, 08:51 AM

I remember from the 5th gen LS3/L99's, exhaust leaks were frequent if not using oem metal exhaust gaskets. Is that what this noise is, I dunno?

f.d · 08-23-2019, 07:57 PM

Use stethoscope or big screw driver and check out 2 pleases.

1- The fuel line, exactly when the fuel line go to the engine, driver side, here there is fuel check valve , it makes tick.
2- EVAP valve, it’s beside throttle body, BMW cars have tick sound comes from it.

I think in the video up , tick comes from the fuel line, because it’s louder in the driver side

STYLO LT1 · 08-25-2019, 08:43 PM

It’s the fuel injection purge valve.

03-21-2019, 06:13 PM	#2
VAZL1 Drives: 17 ZL1 Join Date: Mar 2017 Location: VA Posts: 1,075	It could be a lifter, but since they just installed headers i would lean towards an exhaust leak. Check for a leak where the header mounts to the heads. Also try re-torquing the header bolts. __________________ 2017 ZL1 Coupe M6, Red Hot Mods; AFE Pro 5R CAI, Kong Ported Blower and Snout, NW 103 TB, Griptech 2.31 Upper, Kooks 2",JMS Voltage Booster, Flex Fuel, Mighty Mouse CC,Jannetty Racing Tune, 680 rwhp

03-22-2019, 04:06 AM	#5
VAZL1 Drives: 17 ZL1 Join Date: Mar 2017 Location: VA Posts: 1,075	With the engine running and exhaust system hot verify, that the exhaust isn't making contact somewhere all the way back to the muffler. Could be a lifter, but i still have my doubts. __________________ 2017 ZL1 Coupe M6, Red Hot Mods; AFE Pro 5R CAI, Kong Ported Blower and Snout, NW 103 TB, Griptech 2.31 Upper, Kooks 2",JMS Voltage Booster, Flex Fuel, Mighty Mouse CC,Jannetty Racing Tune, 680 rwhp

03-25-2019, 01:10 PM	#6
SSLandon Drives: 2017 M6 2ss, Sunroof, Silver Ice Join Date: Apr 2018 Location: Portland Oregon Posts: 47	I too have this problem with same installs. Didn't happen at first but a couple months down the road it's got worse. Having my shop guy check it out this week. It is not a good sound even when I'm decelerating I can here it. __________________ 2017 Camaro 2SS, M6, NPP, Sunroof Cold Air Inductions Intake, Mishimoto Oil Catch Can, Texas Speed 1 7/8" Long Tubes, Cat Delete. Tuned By Tom Wong @ Wong Performance 431HP & 424TQ

03-25-2019, 02:02 PM	#7
jeportera Drives: 2016 Camaro SS A8 Join Date: Apr 2016 Location: Hoover, AL Posts: 50	Which gaskets did they use, OE or Cometic? I'm having the same issue but plan on swapping the gaskets out when I get a moment with factory ones. __________________ 2016 2SS, Borla ATAK, Kooks LT's, Rotofab dry, Pray IM/TB, Pray STG2 blower cam setup, Circle D convertor, Nitto 555rs

03-21-2019, 06:54 PM	#3
CamaRobinator Drives: 2018 Camaro SS Hot Wheels Edition Join Date: Feb 2019 Location: Crofton MD Posts: 2	They did that and said there was a very minor exhaust leak but that didn't change the noise at all after the fix.

03-21-2019, 07:11 PM	#4
CruzySS Drives: 2016 Camaro 2ss Join Date: May 2017 Location: Annandale MN Posts: 588 View My Garage	Mine doesn't sound like that

08-13-2019, 11:58 PM	#8
Fingersmoran Drives: 2018 Camaro 2SS 1LE Join Date: Jun 2017 Location: Vancouver B.C Posts: 2	Did this ever get sorted? I have the exact same issue. Louder on the driver side, gets a bit worse as the car warms up. Only mod I have is Kooks Long tube headers and the GMPP intake. It’s driving me bonkers.

08-15-2019, 04:21 PM	#9
n1njam005e Drives: 2019 Chevrolet Camaro 2SS Join Date: Jul 2019 Location: Winnipeg Posts: 23	I just ordered Kooks LT headers for my car...should I be concerned about this? I am getting the install done at a garage though.....

08-16-2019, 08:51 AM	#11
nancygrl 雪の玉 Drives: '22 Z71 RST Silverado Join Date: Feb 2011 Location: South Posts: 3,415	I remember from the 5th gen LS3/L99's, exhaust leaks were frequent if not using oem metal exhaust gaskets. Is that what this noise is, I dunno?

08-23-2019, 07:57 PM	#12
f.d Drives: camaro Join Date: Feb 2014 Location: Every day some were Posts: 116	Use stethoscope or big screw driver and check out 2 pleases. 1- The fuel line, exactly when the fuel line go to the engine, driver side, here there is fuel check valve , it makes tick. 2- EVAP valve, it’s beside throttle body, BMW cars have tick sound comes from it. I think in the video up , tick comes from the fuel line, because it’s louder in the driver side

08-25-2019, 08:43 PM	#13
STYLO LT1 Drives: 2016 Camaro SS Vert. Join Date: Apr 2017 Location: Garden State Posts: 537	It’s the fuel injection purge valve.

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