2023 ZL1 with a tick - Page 11

DangerZL1 · 10-04-2023, 09:20 PM

https://static.nhtsa.gov/odi/tsbs/20...16662-9999.pdf This is an older copy of the current TSB. There is a check valve in the fuel line causing the noise. The line runs from the fuel tank to the high pressure fuel pump feed that needs to be replaced. The fuel line, 84404473, is currently back ordered. The pic of the fuel feed line in the TSB isn’t correct for the ZL1

Nasty²³ · 10-05-2023, 03:46 PM

Still waiting on my part to come in (84404473) - This strike really screwed things up.

taylorforschool@gmail.com · 10-05-2023, 08:22 PM

Strike is irrelevant to the GM excuse machine. I waited 4 months on a REBUILT trans in July of last year. They legitimately tried to claim they had no new ones to replace it with.

triggerjerk · 10-06-2023, 03:17 PM

Quote:

Originally Posted by Nasty²³

Still waiting on my part to come in (84404473) - This strike really screwed things up.

Me too. I hope we aren't in for a long wait . . .

Alexhan · 10-11-2023, 11:20 AM

I am in canada , zle is 2023/06 ,my dealer check the TSB and order the parts: P#12703669 & P#12677005 , have no idea why they r different with others

DangerZL1 · 10-11-2023, 12:38 PM

84404473 is the fuel line from the tank to the fuel feed line. If your dealer just looked at the TSB without looking at the car, they may have ordered the wrong parts. It happened to another poster in this thread.

#8ZL1Man · 10-12-2023, 05:21 PM

Sounds too slow to be the engine.

Sounds like a vibration rattle or misalignment against something. Have you tried running and listening for it with and without the car in neutral to isolate it to the transmission?

DangerZL1 · 10-13-2023, 07:27 AM

It’s not a fast tapping noise. You can easily hear it in the fuel feed line with an engine stethoscope per the TSB.

WhiteMale · 10-13-2023, 09:45 AM

Quote:

Originally Posted by #8ZL1Man

Sounds too slow to be the engine.

Sounds like a vibration rattle or misalignment against something. Have you tried running and listening for it with and without the car in neutral to isolate it to the transmission?

You in the right thread?

ITGuy11 · 10-14-2023, 11:37 AM

Recently picked up my 23 ZL1 with a 6/23 build date, add me to the ticked off club. Per my dealer, part 84404473 is on backorder with no ETA. The strike doesn't look like it is ending anytime soon, and I will be putting the car away for winter storage in a couple of weeks ugh!

#8ZL1Man · 10-14-2023, 06:33 PM

Quote:

Originally Posted by WhiteMale

You in the right thread?

Yep. Albeit a bit late to the thread. As someone who's had a 2013 427 vett engine, I know what 'ticking paranoia' really can be. This ain't that.

I just don't use the 't' word unless I'm sure that it's the engine internals (rockers, lifters, etc.).

XXX ZL1 · 10-14-2023, 10:22 PM

This is the culprit. The anti drain back valve in the factory feed. Crazy how small and restricted it is.

triggerjerk · 10-14-2023, 10:38 PM

Quote:

Originally Posted by XXX ZL1

This is the culprit. The anti drain back valve in the factory feed. Crazy how small and restricted it is.

Did you do the repair yourself?

triggerjerk · 10-14-2023, 10:40 PM

Quote:

Originally Posted by #8ZL1Man

Yep. Albeit a bit late to the thread. As someone who's had a 2013 427 vett engine, I know what 'ticking paranoia' really can be. This ain't that.

I just don't use the 't' word unless I'm sure that it's the engine internals (rockers, lifters, etc.).

The TSB calls it tick, rattle, or buzz.

10-04-2023, 09:20 PM	#141
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	https://static.nhtsa.gov/odi/tsbs/20...16662-9999.pdf This is an older copy of the current TSB. There is a check valve in the fuel line causing the noise. The line runs from the fuel tank to the high pressure fuel pump feed that needs to be replaced. The fuel line, 84404473, is currently back ordered. The pic of the fuel feed line in the TSB isn’t correct for the ZL1 Last edited by DangerZL1; 10-05-2023 at 04:05 PM.

10-05-2023, 08:22 PM	#143
taylorforschool@gmail.com PKG4U Drives: 2018 ZL1 Join Date: May 2021 Location: Huntsville AL Posts: 631 View My Garage	Strike is irrelevant to the GM excuse machine. I waited 4 months on a REBUILT trans in July of last year. They legitimately tried to claim they had no new ones to replace it with. __________________ 2020 Camaro LT1. Bought 10/2020 \| GM PERF. CAI \| GM Muffler Delete (Performance Exhaust 4” tips). \| SOLD 1/2022\| 2018 ZL1 Summit White \| Bought 1/2022 \| PDR, Recaros, Carbon Dash, WeaponX Hx System, Apex SM-10 in ZLE fitment w/PS4S Mods after Warranty “Imma keep it stock”

10-11-2023, 11:20 AM	#145
Alexhan RACERCREED Drives: 2023 ZLE M6 Join Date: Apr 2020 Location: ONTARIO Posts: 22	I am in canada , zle is 2023/06 ,my dealer check the TSB and order the parts: P#12703669 & P#12677005 , have no idea why they r different with others __________________ G37 SKYLINE(SOLD) 997.2 BRZ(SOLD) 2019 2SS1LE(SOLD) 2018 ALFA QV (SOLD) 2019 BULLITT(SOLD) 2016 M4 F82 STAGE 2 (SOLD) 2013 M5 F10 (For Sell) 2023 ZLE (6/16 4300 9/30 6000)

10-12-2023, 05:21 PM	#147
#8ZL1Man Drives: 2023 ZL1 Join Date: May 2022 Location: Texas Posts: 115	Sounds too slow to be the engine. Sounds like a vibration rattle or misalignment against something. Have you tried running and listening for it with and without the car in neutral to isolate it to the transmission? __________________ 2023 ZL1 A10 Convertible (copper-free brakes) ________________________________ 1973 Triumph GT6 2018 Mustang GT Convertible 2009 Viper Roadster 1970 Olds Cutlass Supreme Convertible 1967 Chevelle SS396 Convertible 2013 Corvette 427 Convertible 1965 Mustang Fastback (Shelby GT350 clone) 1969 Camaro RS/SS 350 Convertible 1967 Mustang Fastback 289 'HiPo' 2005 Viper SRT-10 Roadster 2003 Corvette Coupe 2001 BMW E46 M3 Coupe

10-14-2023, 10:22 PM	#152
XXX ZL1 Drives: 2023 ZL1 M6 Join Date: Sep 2018 Location: Pace FL Posts: 417	This is the culprit. The anti drain back valve in the factory feed. Crazy how small and restricted it is. Attached Images __________________ 2024 Riverside Blue ZL1 M6 Magnuson 2650R, NW 103, Roto Fab Big Gulp, Jet Hot Coated ARH 2 inch LT's, Stainless Works NPP, Too High PSI Billet Valve Covers, Mighty Mouse Wild CC Signature Forged 20x10.5/20x11.5, 295/30-315/30, BMR springs, BMR Cradle lockout, AAD Billet Control/Trailing arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold

10-05-2023, 03:46 PM	#142
Nasty²³ Drives: 2023 Camaro ZL1 6MT Join Date: Aug 2023 Location: California Posts: 11	Still waiting on my part to come in (84404473) - This strike really screwed things up.

10-11-2023, 12:38 PM	#146
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	84404473 is the fuel line from the tank to the fuel feed line. If your dealer just looked at the TSB without looking at the car, they may have ordered the wrong parts. It happened to another poster in this thread.

10-13-2023, 07:27 AM	#148
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	It’s not a fast tapping noise. You can easily hear it in the fuel feed line with an engine stethoscope per the TSB.

10-14-2023, 11:37 AM	#150
ITGuy11 Burning up tires Drives: 2023 ZL1 Vert Join Date: Jul 2010 Location: Macomb Twp, MI Posts: 717	Recently picked up my 23 ZL1 with a 6/23 build date, add me to the ticked off club. Per my dealer, part 84404473 is on backorder with no ETA. The strike doesn't look like it is ending anytime soon, and I will be putting the car away for winter storage in a couple of weeks ugh!

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