12-27-2015, 02:43 PM | #1 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
NPP passenger valve rattle when closed?
I've been leaving my valves closed the past few days and am hearing a massive rattle on the passenger side on cold start and then when I accelerate from a stop. If I give it a quick rev, it also does it. I'm pretty sure it must be the NPP valve on the side not being tightly closed since I never heard it before while they were open.
Anyone else had this issue? EDIT: got a video during a cold start https://youtu.be/P88WUJEh_cM
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp Last edited by jimmypop13; 12-28-2015 at 04:52 AM. |
12-27-2015, 03:11 PM | #2 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
Confirmed it's the valve causing the rattle. I started it cold. As soon as the valve closes on the passenger side, the rattle starts. I took a long screw driver and could feel the valve rattling. As soon as I apply pressure to the valve, the rattle stops.
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
12-27-2015, 07:32 PM | #3 |
Drives: 2016 F150 Join Date: May 2014
Location: Iowa
Posts: 2,196
|
Considering it's a new car, not sure why you'd even attempt to deal with it. I'd take it in and have them fix it.
|
12-27-2015, 07:47 PM | #4 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
I just hate to give it up for a few days. Would be nice if it was something easy like a screw loose but everything looks good. Just too much play in the bar of the butterfly valve I think.
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
12-28-2015, 04:53 AM | #5 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
12-29-2015, 09:23 AM | #6 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
Dropped it off at the dealer this morning. Will report back with updates
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
12-29-2015, 10:03 AM | #7 | |
Drives: 16 Camaro, 11 Stryker, 00 Explorer Join Date: Dec 2015
Location: NJ
Posts: 1,214
|
Quote:
__________________
NGM, 2SS, 6MT, NPP, MRC, Nav, Kalahari, Grey Wheels
1100 12/14/2015 3000 1/8/2016 (TPW 2/1) 3800 2/1/2016 5000 3/5/2016 |
|
01-02-2016, 11:02 AM | #8 |
Drives: 2016 Chevy Camaro 1SS... NPP, A8. Join Date: Oct 2015
Location: Oklahoma City
Posts: 129
|
Any update on this? Mine rattles every time at about 1500 rpm. Bothersome when I don't have my music playing.
|
01-02-2016, 11:11 AM | #9 |
Drives: 2016 Hyper Blue 1SS Join Date: Jul 2015
Location: hampton roads
Posts: 2,763
|
I can here mine opening and closing randonly while the car is turned off for about 4 minutes after a ride but it diesnt bother me
__________________
1ss/Auto-Hyper Blue
acs carbon flash spoiler, bmr springs, gm clear tails. Texas speed cam, 223/227 .635/.635 116 LSA, Kooks Long Tube Headers with green cats, MSD Atomic Air Force Intake, CAI Cold Air Intake, QTP cutouts. 503 hp Best so far 11.5 at 123 with a 1.83 60ft. BMR lower and upper trailing arms and upper control arms,E85 DELIVERED 12/29/15 http://youtube.com/bybcous " no talking only racing on my youtube" |
01-02-2016, 11:18 AM | #10 |
Drives: 2017 Hyper Blue 2SS Join Date: Jul 2015
Location: Chicago
Posts: 317
|
I noticed the same issue for mines earlier this week..just took it to the shop and turns out the muffler pan was not correctly installed and a loose bolt needed to be tighten. Problem is solved now
|
01-06-2016, 03:30 PM | #11 |
Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
|
Car has been at the dealer the past two days for this and a radio issue. They have ordered a new catback to replace mine. Sounds like all my issues will be solved shortly! I know we are guinea pigs with these new cars, I'm just so glad GM has been so awesome about solving these early problems quickly. I'm very happy with my experience dealing with GM and the service department.
__________________
2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
01-07-2016, 02:23 PM | #12 |
Drives: 2016 2ss Join Date: Aug 2015
Location: Phoeinx, AZ
Posts: 139
|
I also have the same problem
|
01-14-2016, 11:59 AM | #13 |
Drives: 2016 2SS, 2008 HHR ECTO-2H Join Date: Aug 2009
Location: Springfield, Mo
Posts: 1,927
|
Any more info on this issue? Mine does it right when it shifts, then goes away when cruising.
__________________
2016 Camaro 2SS. Hyper Blue, Ceramic White, Auto, MRC, and NPP.
1100 - 9/25 2000 - 9/28 3000 - 9/30 3100 - 10/27 3300 - 10/28 3400 - 10/29 TPW 11/09 3800 - 11/10 4300 - 11/24 4B00 - 11/25 4200 - 12/5 5000 - 12/7 6000 - 12/11 |
01-14-2016, 12:20 PM | #14 | |
Drives: 6th gen Join Date: Aug 2013
Location: US
Posts: 3,676
|
Quote:
is there a spring that holds the valve open? |
|
|
|
Post Reply
|
|
|