whats that sound when you open the door on a 20 SS 1LE?

avarshav · 01-17-2020, 06:57 AM

So, probably stupid question, but I'll ask anyway cause it has me intrigued.

So, if my car has been sitting off for a while, and I go open the door, there comes this hum and buzz from the rear of the car for about 5-10 seconds and then it stops. fuel pump, something with the mag ride? no idea and it seems normal, but I'm just curious as to what the heck it is? I had a 2017 V6 2LT before this one and it didn't do it, nor has another other car I've ever had in my life.

ZL1 1LE · 01-17-2020, 06:59 AM

Fuel pump priming.

avarshav · 01-17-2020, 07:00 AM

Quote:

Originally Posted by ZL1 1LE

Fuel pump priming.

thanks! never had a car that did that before!

Mov Ov3r · 01-17-2020, 01:40 PM

That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle

(or what ZL1 1LE said)

Stephen12ZL1 · 01-17-2020, 02:35 PM

my 13yr old asked the same question the other day...my truck does the same thing. DI fuel pump prime. Older fuel injected cars prime when the key is turned to "ON" before starting.

Warrior102 · 01-17-2020, 05:56 PM

The in tank pump supplies fuel and primes the high pressure pump so it doesn't cavitate when the engine is started, the HP pump is driven by the engine. The car has several fuel pumps being direct injection, normal noise..

nancygrl · 01-17-2020, 07:15 PM

Fuel pump priming.... My previous '16 and '17 SS's would only do that when opening/unlocking the driver door only. On my '19 not only when either door opens and it happens when unlock doors via remote, heck it even primes when opening the trunk. Quite normal.

Aragorn · 01-17-2020, 07:24 PM

I swear I had a 2004 1.8t Jetta that did that.

ST1LE · 01-17-2020, 07:49 PM

Quote:

Originally Posted by Mov Ov3r

That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle

(or what ZL1 1LE said)

HAHAHA YES!

RUQWIKR · 01-17-2020, 09:51 PM

GM added it due to complaints of long crank times.

Uncle Sam · 01-17-2020, 09:51 PM

My Triumph motorcycle will "hum" with the ignition on - fuel pump for the FI.

The sound I notice from the back is the electric parking brake on the SS.

P.S. I don't like electric parking brakes.

ZL1 1LE · 01-18-2020, 11:24 AM

Quote:

Originally Posted by Mov Ov3r

That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle

(or what ZL1 1LE said)

You said it much better than I did.

avarshav · 01-18-2020, 11:37 AM

Quote:

Originally Posted by Mov Ov3r

That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle

(or what ZL1 1LE said)

yup, you get the best quote of the day!

damn I love this car. I bought it the day before thanksgiving, have 600 miles on it so far, smiling my a** off with a s**t eating grin every mile of the way.

JROC · 01-18-2020, 07:20 PM

I figured it was the fuel pump/pumps (however many pumps these cars have) priming. How long does the car have to sit between priming? If the car isn't cold or been sitting for a while I haven't noticed it priming.

01-17-2020, 06:57 AM	#1
avarshav Drives: 2020 SS 1LE 6M, 2019 GMC Canyon SLT Join Date: May 2017 Location: Tennessee Posts: 53	whats that sound when you open the door on a 20 SS 1LE? So, probably stupid question, but I'll ask anyway cause it has me intrigued. So, if my car has been sitting off for a while, and I go open the door, there comes this hum and buzz from the rear of the car for about 5-10 seconds and then it stops. fuel pump, something with the mag ride? no idea and it seems normal, but I'm just curious as to what the heck it is? I had a 2017 V6 2LT before this one and it didn't do it, nor has another other car I've ever had in my life.

01-17-2020, 06:59 AM	#2
ZL1 1LE @zle_blackwing Drives: 2018 ZL1 1LE Join Date: Mar 2017 Location: S OC Posts: 1,390	Fuel pump priming. __________________ 2018 ZL1 1LE - Red Hot, Nav, PDR

01-17-2020, 01:40 PM	#4
Mov Ov3r What speed limit? Drives: 2017 SS 1LE Join Date: Jul 2019 Location: Dallas Posts: 245	That my friend.. is the sweet succulent sound of the car preparing to ignite the wonderfully tasty nectar your V8 needs to send the screaming bald eagles furiously from the 4 pipes out of the rear of your vehicle (or what ZL1 1LE said) Last edited by Mov Ov3r; 01-17-2020 at 03:24 PM.

01-17-2020, 02:35 PM	#5
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	my 13yr old asked the same question the other day...my truck does the same thing. DI fuel pump prime. Older fuel injected cars prime when the key is turned to "ON" before starting. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

01-17-2020, 05:56 PM	#6
Warrior102 Drives: 2018 2SS 1LE Black Join Date: Aug 2018 Location: Cape Cod Posts: 638	The in tank pump supplies fuel and primes the high pressure pump so it doesn't cavitate when the engine is started, the HP pump is driven by the engine. The car has several fuel pumps being direct injection, normal noise..

01-17-2020, 07:15 PM	#7
nancygrl 雪の玉 Drives: '22 Z71 RST Silverado Join Date: Feb 2011 Location: South Posts: 3,415	Fuel pump priming.... My previous '16 and '17 SS's would only do that when opening/unlocking the driver door only. On my '19 not only when either door opens and it happens when unlock doors via remote, heck it even primes when opening the trunk. Quite normal.

01-17-2020, 07:24 PM	#8
Aragorn Account Suspended Drives: Camaro SS 1LE Join Date: Aug 2018 Location: Phoenix Posts: 1,538	I swear I had a 2004 1.8t Jetta that did that.

01-17-2020, 09:51 PM	#10
RUQWIKR Drives: 1LEs Join Date: May 2009 Location: DFW - Texas Posts: 1,319	GM added it due to complaints of long crank times.

01-17-2020, 09:51 PM	#11
Uncle Sam Drives: 2017 Camaro 1LE Hyper Blue Join Date: Apr 2017 Location: Rockville, Maryland Posts: 373	My Triumph motorcycle will "hum" with the ignition on - fuel pump for the FI. The sound I notice from the back is the electric parking brake on the SS. P.S. I don't like electric parking brakes.

01-18-2020, 07:20 PM	#14
JROC Account Suspended Drives: 19 Camaro SS 1LE, 03 Ford Lightning Join Date: Nov 2019 Location: South Carolina Posts: 334	I figured it was the fuel pump/pumps (however many pumps these cars have) priming. How long does the car have to sit between priming? If the car isn't cold or been sitting for a while I haven't noticed it priming.

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