Lifter tapping or DI?

Sambeaux · 01-21-2019, 03:08 PM

Hey guys I’d appreciate an informed opinion on this. I have an 18ss that I bought certified with 3500 miles. I just started noticing this sound yesterday. I can’t tell if it’s new or I just didn’t notice it before. It makes the sound throughout the rpm range but is more noticeable at idle. I’ve searched this forum and have seen the other videos but would appreciate yalls i put before I run to the dealer. Also the car came certified with that CAI installed but it doesn’t have the GM lid, is that going to be a problem with my dealer?

https://youtu.be/t8If9vbiueI

Sham2SS · 01-21-2019, 03:12 PM

seems significantly louder than my '16 ss. I work at a Volvo dealer and I know once we certify the vehicle if there is anything like a CAI installed it's part of the RO we write. I'd assume they'd have no issue with it if they have the same process.

SSDan · 01-21-2019, 03:13 PM

Hmm! It's hard to be certain by listening only to a video but that sounds like more than DI tick to me. I recommend a dealer visit. On the CAI - are you going back to the dealer of purchase? If so - it shouldn't be an issue since they sold it certified that way.

Good luck!

Sambeaux · 01-21-2019, 03:17 PM

Quote:

Originally Posted by SSDan

Hmm! It's hard to be certain my listening to a video but that sounds like more than DI tick to me. I recommend a dealer visit. On the CAI - are you going back to the dealer of purchase? If so - it shouldn't be an issue since they sold it certified that way.

Good luck!

No I bought it up in Indianapolis and I live down in Houston. I guess I’ll call the dealership I bought it from and ask them about it before I take it in locally.

biker2k · 01-21-2019, 04:19 PM

not di tick

mdhopt36 · 01-21-2019, 04:36 PM

+1....
Not anything to worry about.

Gunkk · 01-21-2019, 07:28 PM

That sounds louder than any DI fuel pump tick I've heard before. A lot louder, but it could still be HPFP related. Have a tech look at the HP fuel line just in case.

https://www.corvetteactioncenter.com...rint-1338.html

Sambeaux · 01-21-2019, 07:40 PM

Much appreciated guys, I’ll bring it in tomorrow.

JCunningham · 01-22-2019, 11:58 PM

any update. sounds like you ha a valve train problem.

Whocares05050 · 01-23-2019, 07:34 AM

Are you automatic? Sounds like a stuck AFM lifter to me.

jcastag · 01-23-2019, 09:08 AM

Yeah sounds pretty bad

at7000ft · 01-23-2019, 09:44 AM

Dealer service people told me the mild DI tick at idle is normal. Shouldn't be able to hear it much above idle though.

Sambeaux · 01-23-2019, 09:30 PM

No I didn’t get to get it in. I’m gunna try to bring it in tomorrow. It’s a 6M 1LE. I got a stethoscope but can’t find where to stick in on the head without some disassembly. I read about the other member bringing one with him to the dealership to prove it was an internal metal on metal sound. I really hope they don’t give me any issues with this.

Gasoline_Farts · 01-23-2019, 10:24 PM

Just watched your video. That doesn’t sound healthy to me

01-21-2019, 03:08 PM	#1
Sambeaux Drives: 2018 1LE Join Date: Jan 2019 Location: USA Posts: 47	Lifter tapping or DI? Hey guys I’d appreciate an informed opinion on this. I have an 18ss that I bought certified with 3500 miles. I just started noticing this sound yesterday. I can’t tell if it’s new or I just didn’t notice it before. It makes the sound throughout the rpm range but is more noticeable at idle. I’ve searched this forum and have seen the other videos but would appreciate yalls i put before I run to the dealer. Also the car came certified with that CAI installed but it doesn’t have the GM lid, is that going to be a problem with my dealer? https://youtu.be/t8If9vbiueI

01-21-2019, 03:13 PM	#3
SSDan Drives: 2016 1SS 6MT NPP Join Date: Feb 2010 Location: Lake Murray, SC Posts: 2,245 View My Garage	Hmm! It's hard to be certain by listening only to a video but that sounds like more than DI tick to me. I recommend a dealer visit. On the CAI - are you going back to the dealer of purchase? If so - it shouldn't be an issue since they sold it certified that way. Good luck! __________________ 2016 Camaro 1SS Hyper Blue 6MT NPP 2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold) Last edited by SSDan; 01-21-2019 at 03:38 PM. Reason: spelling

01-21-2019, 04:19 PM	#5
biker2k Drives: 2018 2ss 1le Join Date: Jan 2018 Location: Huntington, NY Posts: 474	not di tick __________________ 2018 2ss 1le roto fab dry, Stainless works 1 7/8 lt to 3'" x pipe with highflow cats to stock npp, soler 95mm t/b, edelbrock 2300, LT4 fueling , jms bap and dsx flex fuel, 618/620 on e45 rwhp Jannetty Motorsports tuned

01-22-2019, 11:58 PM	#9
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	any update. sounds like you ha a valve train problem. __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1 Last edited by JCunningham; 01-23-2019 at 01:39 AM.

01-21-2019, 03:12 PM	#2
Sham2SS Drives: 2016 Summit white 2ss Join Date: Oct 2018 Location: Florida Posts: 12	seems significantly louder than my '16 ss. I work at a Volvo dealer and I know once we certify the vehicle if there is anything like a CAI installed it's part of the RO we write. I'd assume they'd have no issue with it if they have the same process.

01-21-2019, 04:36 PM	#6
mdhopt36 Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018 Location: MA Posts: 469	+1.... Not anything to worry about.

01-21-2019, 07:28 PM	#7
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 4,973 View My Garage	That sounds louder than any DI fuel pump tick I've heard before. A lot louder, but it could still be HPFP related. Have a tech look at the HP fuel line just in case. https://www.corvetteactioncenter.com...rint-1338.html

01-21-2019, 07:40 PM	#8
Sambeaux Drives: 2018 1LE Join Date: Jan 2019 Location: USA Posts: 47	Much appreciated guys, I’ll bring it in tomorrow.

01-23-2019, 07:34 AM	#10
Whocares05050 Drives: 2018 Camaro SS 1LE Join Date: Oct 2018 Location: Treasure Coast, FL Posts: 384	Are you automatic? Sounds like a stuck AFM lifter to me.

01-23-2019, 09:08 AM	#11
jcastag Drives: 2017 Camaro FIFTY 2SS Join Date: Jan 2017 Location: Bluffton, SC Posts: 303	Yeah sounds pretty bad

01-23-2019, 09:44 AM	#12
at7000ft Drives: 2016 2SS Join Date: Jan 2016 Location: CO Posts: 116	Dealer service people told me the mild DI tick at idle is normal. Shouldn't be able to hear it much above idle though.

01-23-2019, 09:30 PM	#13
Sambeaux Drives: 2018 1LE Join Date: Jan 2019 Location: USA Posts: 47	No I didn’t get to get it in. I’m gunna try to bring it in tomorrow. It’s a 6M 1LE. I got a stethoscope but can’t find where to stick in on the head without some disassembly. I read about the other member bringing one with him to the dealership to prove it was an internal metal on metal sound. I really hope they don’t give me any issues with this.

01-23-2019, 10:24 PM	#14
Gasoline_Farts Drives: 19 SS 1LE Join Date: Nov 2018 Location: NV Posts: 140	Just watched your video. That doesn’t sound healthy to me

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