01-17-2020, 06:57 AM | #1 |
Drives: 2020 SS 1LE 6M, 2019 GMC Canyon SLT Join Date: May 2017
Location: Tennessee
Posts: 53
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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 |
@zle_blackwing
Drives: 2018 ZL1 1LE Join Date: Mar 2017
Location: S OC
Posts: 1,390
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Fuel pump priming.
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2018 ZL1 1LE - Red Hot, Nav, PDR
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01-17-2020, 07:00 AM | #3 |
Drives: 2020 SS 1LE 6M, 2019 GMC Canyon SLT Join Date: May 2017
Location: Tennessee
Posts: 53
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01-17-2020, 01:40 PM | #4 |
What speed limit?
Drives: 2017 SS 1LE Join Date: Jul 2019
Location: Dallas
Posts: 245
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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 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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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.
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'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 |
Drives: 2018 2SS 1LE Black Join Date: Aug 2018
Location: Cape Cod
Posts: 638
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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..
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01-17-2020, 07:15 PM | #7 |
雪の玉
Drives: '22 Z71 RST Silverado Join Date: Feb 2011
Location: South
Posts: 3,415
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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.
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01-17-2020, 07:24 PM | #8 |
Account Suspended
Drives: Camaro SS 1LE Join Date: Aug 2018
Location: Phoenix
Posts: 1,538
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I swear I had a 2004 1.8t Jetta that did that.
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01-17-2020, 07:49 PM | #9 |
Drives: E92 BMW M3 Join Date: Oct 2012
Location: Houston
Posts: 4,496
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HAHAHA YES!
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SOLD - 2013 1LE - Pat G Spec'd Cam, NPP with 1 7/8" Long Tube Headers with High Flow Cats, Intake w/scoop, Ported Throttle Body, and Apex 1.25" Lowering Springs.
J-Rod Built and Matt@FSP Tuned |
01-17-2020, 09:51 PM | #10 |
Drives: 1LEs Join Date: May 2009
Location: DFW - Texas
Posts: 1,319
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GM added it due to complaints of long crank times.
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01-17-2020, 09:51 PM | #11 |
Drives: 2017 Camaro 1LE Hyper Blue Join Date: Apr 2017
Location: Rockville, Maryland
Posts: 373
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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, 11:24 AM | #12 |
@zle_blackwing
Drives: 2018 ZL1 1LE Join Date: Mar 2017
Location: S OC
Posts: 1,390
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You said it much better than I did.
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2018 ZL1 1LE - Red Hot, Nav, PDR
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01-18-2020, 11:37 AM | #13 | |
Drives: 2020 SS 1LE 6M, 2019 GMC Canyon SLT Join Date: May 2017
Location: Tennessee
Posts: 53
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Quote:
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. |
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01-18-2020, 07:20 PM | #14 |
Account Suspended
Drives: 19 Camaro SS 1LE, 03 Ford Lightning Join Date: Nov 2019
Location: South Carolina
Posts: 334
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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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