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12-02-2018, 10:05 AM
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#1 |
 
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Humming before start up
Hello everybody it's good to be back I just picked up my brand new 2018 1 l e 1ss Camaro on Friday and I did notice this morning when I went out to start up the car that before I open the door or shall I say the minute I open the door a humming noise came from the back of the car sounded weird . I'm thinking normal operation because I'm not used to the car but I want to know if anybody else has heard any strange noises like this thank you in advance
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12-02-2018, 12:02 PM
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#2 |
    
Drives: 2017 Camaro 2LT RS 3.6L Join Date: Mar 2016
Location: Orange Park, Florida
Posts: 1,313
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Better off recording it.
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12-02-2018, 12:06 PM
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#3 |
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Drives: 2021 Tesla Model 3 LR Join Date: May 2016
Location: USA
Posts: 964
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It may be the low pressure fuel pump getting the system primed anticipating the car will be started.
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12-02-2018, 01:13 PM
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#4 | |
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Quote:
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12-02-2018, 01:16 PM
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#5 |
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Drives: 2018 Camaro SS 1LE Join Date: Oct 2018
Location: Treasure Coast, FL
Posts: 384
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Its just the fuel pump priming... happens every time you open the drivers door
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12-02-2018, 01:57 PM
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#6 | |
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Quote:
 Once again , thank you for your helpful input . |
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12-02-2018, 04:27 PM
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#7 |
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Most likely it’s the fuel pump.
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12-02-2018, 04:41 PM
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#8 |
        
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,597
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If the noise stops after a few seconds, then (as others have said) it's the low pressure fuel pump priming.
For some reason it's louder in the SS than in the LT or any other car I have or had before.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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12-02-2018, 05:07 PM
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#9 | |
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Quote:
Last edited by cb2011rs; 12-02-2018 at 05:23 PM. |
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12-03-2018, 04:47 AM
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#10 |
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Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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Same thing, mine sounds like a small electric motor, for about 1 second when the door is first opened.
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12-03-2018, 01:05 PM
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#11 |
 Drives: 2024 2SS Summit White Join Date: Jun 2018
Location: US
Posts: 149
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Well I'll be...
Always wondered what that noise was. I kept thinking it was the power seat moving....but then my 1SS doesn't have seat memory. 
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12-03-2018, 05:52 PM
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#12 |
 
Drives: 2019 SS 1LE Join Date: Oct 2018
Location: Florence, SC
Posts: 74
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I have had about 18 cars so far and have never heard this noise before-why the Camaro? Is it related to direct injection?
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12-03-2018, 06:18 PM
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#13 | |
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Quote:
I would say yes. Plus that is also why these cars crank for a few seconds when cold as the mechanical high pressure fuel pump (cam driven and located at the back of the motor under the intake manifold) has to step up the pressure supplied by the fuel tank pump (400 psi - I think) to 2100-2200 psi. All this pressure is needed by those direct injectors so they can do their thing.
__________________
2016 Camaro 1SS Hyper Blue 6MT NPP
2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold) |
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12-04-2018, 10:52 AM
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#14 |
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Banned
Drives: 6 on the Flo' Super Sport Join Date: Jan 2011
Location: md
Posts: 1,925
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The car knows you are coming and primes the pump for your comfort and convenience to serve you better.
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