07-12-2014, 09:49 AM | #15 |
Drives: Camaro SS - Trans Am - Silverado Join Date: Jan 2008
Location: Southern, US
Posts: 1,638
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07-12-2014, 11:06 AM | #16 |
Drives: Black 2011 Camaro LS Join Date: Feb 2011
Location: Texas
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White Fender Hashes from Big Worm Graphix with Custom White Bowties
GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs |
07-12-2014, 11:12 AM | #17 |
Drives: Black 2011 Camaro LS Join Date: Feb 2011
Location: Texas
Posts: 1,694
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White Fender Hashes from Big Worm Graphix with Custom White Bowties
GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs |
07-12-2014, 11:12 AM | #18 |
Drives: Black 2011 Camaro LS Join Date: Feb 2011
Location: Texas
Posts: 1,694
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White Fender Hashes from Big Worm Graphix with Custom White Bowties
GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs |
07-12-2014, 01:02 PM | #19 |
Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013
Location: Raleigh-Durham
Posts: 1,409
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My guess is right along with these guys, it could be a fuel pressure issue.
Unrelated but kinda similar, my Yamaha FZ1 tends to do this after it's been sitting for awhile after being hot. I'll go hop on and it will start then die a few times before it will stay running.
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2010 2SS
BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP) |
07-13-2014, 07:07 PM | #20 |
Drives: 2017 Camaro 2SS, 2011 Camaro 2LT Join Date: Jan 2014
Location: USA
Posts: 640
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Here is my video of same issue OP is having
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07-13-2014, 10:12 PM | #21 |
Drives: Black 2011 Camaro LS Join Date: Feb 2011
Location: Texas
Posts: 1,694
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That doesn't explain why it's fine on cold starts.
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White Fender Hashes from Big Worm Graphix with Custom White Bowties
GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs |
07-13-2014, 10:31 PM | #22 |
Drives: 2017 Camaro 2SS, 2011 Camaro 2LT Join Date: Jan 2014
Location: USA
Posts: 640
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07-15-2014, 01:39 AM | #23 |
Drives: 2017 Camaro 2SS, 2011 Camaro 2LT Join Date: Jan 2014
Location: USA
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Here is a video of a POP sound when starting the car. Any people on this helpful forum possibly know what may be the issue??? It sounds pretty bad and does it randomly when car is warm.
Please excuse messy garage. In the middle of cleaning it. |
07-15-2014, 01:54 AM | #24 |
Booooosted.
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Man... sounds like rod knock but obviously is not. A knock that loud would manifest more than that.
I'd say maybe you have a header or exhaust hitting under the car? But since there is more than one of you I'd say starter? The audio is great but I can't think of anything. I'm just throwing them out there. Exhaust headers and back will expand when hot and the motor shakes the most at start up. |
07-22-2014, 04:41 PM | #25 |
Drives: Camaro LS Join Date: Apr 2010
Location: US
Posts: 45
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2010 LS, Auto - mine does this as well. Only when warm (but not every time) and never on a cold start (where the engine revs higher for ~10 seconds).
Occasionally, it will make a backfire pop as well -- but it usually just sounds like a single, regular engine knock when it happens. It does not cause the car to stall out or anything, and it runs fine once started. It generated a code one time, so I took it into the dealer. The code translated to a bad spark plug, which they replaced under warranty. However, the problem still continues every once in a while (never when at the dealer of course!). |
07-23-2014, 10:18 AM | #26 |
Drives: Black 2011 Camaro LS Join Date: Feb 2011
Location: Texas
Posts: 1,694
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Still hoping for a fix
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White Fender Hashes from Big Worm Graphix with Custom White Bowties
GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs |
07-23-2014, 10:47 AM | #27 |
Drives: 2011 2LT/RS M6 IOM Join Date: Apr 2011
Location: SK,Canada
Posts: 317
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I get the same thing every once and awhile when starting - never even made note of it honestly until this thread - I guess it probably only happens when shes hot.
Why does it matter? The choking doesnt even last for as long asyou turn the key - and it definately doesnt stall or bog out. |
07-23-2014, 11:05 AM | #28 |
Drives: 2014 2SS L99 Join Date: Mar 2014
Location: Corpus Christi Texas
Posts: 1,320
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That knock sound seems to only happen while cranking. I'd suspect something to do with the starter. A rod knock would persist beyond cranking. Possible heat soak issue with respect to starter.
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