Quirks of a Computer heavy car

chevybill · 11-01-2021, 10:20 AM

After a very enjoyable Sunday cruise, I cleaned my 2017 2 ss in the shop yesterday and sat down.

A couple minutes pass and I hear a very slight clicking sound from the rear of my car. I slide under the rear of the car and listen and a slight clicking sound repeats about every 2 minutes. At first I thought it was a mouse. Very quiet similar to a starter with a bad battery.

I look in my window and the message center is glowing very dim.

I open the door for a few seconds and let message center and radio cycle their displays and close the door.

The dash and radio goes 100 percent dark and the clicking stops.

Anyone experience this? If I had my shop radio on or any other noise, I would probably never heard it.

laynlo15 · 11-01-2021, 10:47 AM

Fuel pump I believe, My Vette does it also when I have it in Accy mode. My buddies 16 Camaro ss does it. My 16 SS never did that so not sure what causes it.

ctrlz · 11-01-2021, 11:18 AM

Agree, probably fuel pump.
After ignition off, the car doesn't really go to sleep until 10 minutes have passed.
See this pdf:
https://gm-techlink.com/wp-content/u...ember_2020.pdf

IceGoaliePaul · 11-02-2021, 10:42 AM

Ah yes. Computer quirks. Like the other day when my camaro turned into to a truck.

N Camarolina · 11-02-2021, 01:11 PM

I've heard that nose multiple times. Fuel pump makes sense.

In fact, there was one stretch where I was working on the interior of the car, opening and closing the door many times over the course of two weeks without driving the car in between. I put a battery tender on to ensure it didn't go dead. No problems there, but when I finally tried to start the car to go for a drive, the engine had to crank over for like 4 or 5 seconds before it would start. Perhaps it was too much fuel from all the times the pump kept activating. Never had an odd starting event prior or since!

11-01-2021, 10:20 AM	#1
chevybill Drives: 1994 z-28, 2017 2ss 6spd Join Date: Mar 2018 Location: Mississippi Posts: 191 View My Garage	Quirks of a Computer heavy car After a very enjoyable Sunday cruise, I cleaned my 2017 2 ss in the shop yesterday and sat down. A couple minutes pass and I hear a very slight clicking sound from the rear of my car. I slide under the rear of the car and listen and a slight clicking sound repeats about every 2 minutes. At first I thought it was a mouse. Very quiet similar to a starter with a bad battery. I look in my window and the message center is glowing very dim. I open the door for a few seconds and let message center and radio cycle their displays and close the door. The dash and radio goes 100 percent dark and the clicking stops. Anyone experience this? If I had my shop radio on or any other noise, I would probably never heard it.

11-01-2021, 10:47 AM	#2
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Fuel pump I believe, My Vette does it also when I have it in Accy mode. My buddies 16 Camaro ss does it. My 16 SS never did that so not sure what causes it. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

11-02-2021, 10:42 AM	#4
IceGoaliePaul Drives: 2018 Chevrolet Camaro 2LT Join Date: Mar 2019 Location: Edmonton, Alberta, Canada Posts: 107	Ah yes. Computer quirks. Like the other day when my camaro turned into to a truck. Attached Images

11-01-2021, 11:18 AM	#3
ctrlz Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016 Location: Ocean City, NJ Posts: 3,181	Agree, probably fuel pump. After ignition off, the car doesn't really go to sleep until 10 minutes have passed. See this pdf: https://gm-techlink.com/wp-content/u...ember_2020.pdf

11-02-2021, 01:11 PM	#5
N Camarolina Drives: 2021 2SS 1LE Join Date: Aug 2020 Location: Cary, NC Posts: 805	I've heard that nose multiple times. Fuel pump makes sense. In fact, there was one stretch where I was working on the interior of the car, opening and closing the door many times over the course of two weeks without driving the car in between. I put a battery tender on to ensure it didn't go dead. No problems there, but when I finally tried to start the car to go for a drive, the engine had to crank over for like 4 or 5 seconds before it would start. Perhaps it was too much fuel from all the times the pump kept activating. Never had an odd starting event prior or since!

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