Horrible hesitation/Rough idle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bpa88 · 07-14-2012, 09:48 PM

Hey everyone,
Well im starting to get pretty irked right now..My Camaro is throwing another problem my way, and this happens to be the worst one yet. I came out of work tonight, started my Camaro, and the Idle was atrocious, to the point where it felt like i had a cam installed, or it was missing horribly..No CEL light, but my whole car was shaking, the RPMS where jumping from what looked like 50rpm-1000rpm and this was ongoing for about 1-1/2 minutes. I tried getting out my phone to take a video but i wasnt fast enough because it was in my bag in the trunk. I have no loss of power when driving, and it seems fine driving, however when coming to a stop the rpms drop almost as if its going to stall, and start bouncing around again..and I got video of this happening. Any ideas on what the heck is going, I go to work the car is running great, i come out of work and it feels like its going to crap out on every stop i make.

-Edit here is the video of me decelerating, try to watch the RPM's i did the best i could, they drop horribly then bounce around all over the place. The video is kinda long because i forgot to press stop, dont mind the black/acceleration at the end if you make it that far.

EWMAN · 07-14-2012, 09:53 PM

video is listed as PRIVATE, will not play

bpa88 · 07-14-2012, 10:01 PM

should be public now.

jmaynard · 07-14-2012, 10:39 PM

You either have a fuel problem ir something much more serious like a stuck valve/lifter. this is exactally what warranties are for. Get it to a dealer and dont torq it up.

Avenging Orange · 07-14-2012, 11:30 PM

Was the 'thump thump' your windshield wipers?
And nothing looks abnormal to me. RPM's will always fluctuate some. And in the second vid, all I saw was the rpm follow you downshift.
As for crappy idle, yes, take it in and get it looked at.

bpa88 · 07-15-2012, 10:04 AM

I've found the culprit!

-Somehow my cold air intake tube dislodged, I reseated it and tightened up the clamp again. Figuring my fuel mixture was all off and messed up now, i disconnected the battery to reset the ECM. All is fine now.

Avenging Orange · 07-15-2012, 06:01 PM

Holy Crap! Glad you found the problem.

07-14-2012, 09:48 PM	#1
bpa88 Drives: 2010 Camaro LS Join Date: Jan 2012 Location: WV Posts: 42	Horrible hesitation/Rough idle Hey everyone, Well im starting to get pretty irked right now..My Camaro is throwing another problem my way, and this happens to be the worst one yet. I came out of work tonight, started my Camaro, and the Idle was atrocious, to the point where it felt like i had a cam installed, or it was missing horribly..No CEL light, but my whole car was shaking, the RPMS where jumping from what looked like 50rpm-1000rpm and this was ongoing for about 1-1/2 minutes. I tried getting out my phone to take a video but i wasnt fast enough because it was in my bag in the trunk. I have no loss of power when driving, and it seems fine driving, however when coming to a stop the rpms drop almost as if its going to stall, and start bouncing around again..and I got video of this happening. Any ideas on what the heck is going, I go to work the car is running great, i come out of work and it feels like its going to crap out on every stop i make. -Edit here is the video of me decelerating, try to watch the RPM's i did the best i could, they drop horribly then bounce around all over the place. The video is kinda long because i forgot to press stop, dont mind the black/acceleration at the end if you make it that far. __________________ Last edited by bpa88; 07-14-2012 at 10:13 PM.

07-14-2012, 09:53 PM	#2
EWMAN Drives: 2011 2SS RS L99 Blk/Blk Join Date: Oct 2011 Location: Norco, Ca Posts: 100	video is listed as PRIVATE, will not play __________________ EWMAN Evil, Wick, Mean and Nasty Aut Vinceri, Aut Mori

07-14-2012, 10:01 PM	#3
bpa88 Drives: 2010 Camaro LS Join Date: Jan 2012 Location: WV Posts: 42	should be public now. __________________

07-14-2012, 11:30 PM	#5
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Was the 'thump thump' your windshield wipers? And nothing looks abnormal to me. RPM's will always fluctuate some. And in the second vid, all I saw was the rpm follow you downshift. As for crappy idle, yes, take it in and get it looked at. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

07-15-2012, 10:04 AM	#6
bpa88 Drives: 2010 Camaro LS Join Date: Jan 2012 Location: WV Posts: 42	I've found the culprit! -Somehow my cold air intake tube dislodged, I reseated it and tightened up the clamp again. Figuring my fuel mixture was all off and messed up now, i disconnected the battery to reset the ECM. All is fine now. __________________

07-14-2012, 10:39 PM	#4
jmaynard Drives: 2012 Camaro SS2 Join Date: Dec 2011 Location: Garland Tx Posts: 453	You either have a fuel problem ir something much more serious like a stuck valve/lifter. this is exactally what warranties are for. Get it to a dealer and dont torq it up.

07-15-2012, 06:01 PM	#7
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Holy Crap! Glad you found the problem. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!