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05-27-2014, 01:14 PM
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#1 |
 
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Problem with the 6 shooter
Ok not sure if this is happening to anybody else but when i step on the gas to floor it or just go fast in general its like its holding back it doesnt take off like it used to. Kind of sounds like something is blocking the air flow because even the exhaust note change i have no clue what the problem is can somebody help
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05-27-2014, 03:50 PM
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#3 |
 
Drives: '10 2LT/RS, '13 Malibu Join Date: Nov 2009
Location: Wichita KS
Posts: 476
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I always feel stupid saying this because I know it's meant for the V8's, but try pulling fuse 5 and 20 for at least a couple hours. Most will say over night, but you should disconnect the battery too, because you will most likely get a check engine light after you put them back in. Your car will relearn its fuel map. Also pull your air filter while waiting and make sure it's clean. If not replace or if it's a cai, then recharge it.
I just did this to mine after a few maintenance items and changing the plugs. To my butt and foot, it definitely feels better again. My avg mpg came back up from all of it too...
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05-27-2014, 04:05 PM
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#4 |
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Yes I have bbk headers and hi flow cats
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05-27-2014, 04:10 PM
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#5 |
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COTW 5/06/2013
Drives: 2017 Corvette Grand Sport-Ho-Vette Join Date: May 2012
Location: Milford, Michigan
Posts: 3,201
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sounds like the cats are failing, mine did the same thing when they went bad.
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 2017 Grand Sport, Borla X Pipe.....Enough Said |
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05-27-2014, 04:29 PM
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#6 |
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So what did you do
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05-27-2014, 04:36 PM
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#7 |
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COTW 5/06/2013
Drives: 2017 Corvette Grand Sport-Ho-Vette Join Date: May 2012
Location: Milford, Michigan
Posts: 3,201
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I gutted mine, no more issues... bang on them , see if they rattle
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2017 Grand Sport, Borla X Pipe.....Enough Said |
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05-27-2014, 04:41 PM
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#8 |
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OK its raining now and if they rattle then that's the problem
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05-27-2014, 05:08 PM
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#9 |
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COTW 5/06/2013
Drives: 2017 Corvette Grand Sport-Ho-Vette Join Date: May 2012
Location: Milford, Michigan
Posts: 3,201
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if they rattle it is definately a problem, if they don't, you should still check them to see if they have collapsed and have reduced flow.
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2017 Grand Sport, Borla X Pipe.....Enough Said |
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05-27-2014, 08:03 PM
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#10 |
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Ok I tapped on them no rattle and when I drove away my car went back to normal I don't no lol
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05-27-2014, 08:26 PM
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#11 |
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KaBoom1701
Drives: 13' ZL1 Red M6 Join Date: Dec 2012
Location: I.E. SoCal (Yucaipa)
Posts: 8,630
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Maybe you need a Vmax TB and a CAI?
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Mods:
Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats. |
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05-27-2014, 10:17 PM
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#12 |
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I have both of those I have full bolts on besides a catch can
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05-28-2014, 04:59 AM
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#13 |
        
Drives: 2018 Hot Red ZL1 Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 3,599
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How do u gut the high flow cats? And rattle will be noticeable?
Sent from my XT1080 using Tapatalk
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05-28-2014, 12:29 PM
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#14 |
Drives: 2017 1SS 6spd Join Date: Jan 2011
Location: Utah
Posts: 2,869
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Catalytic converters used to be made with a ceramic matrix that was easy to shatter and crumble until it had all fallen out (you do need to completely remove the cat midpipe to adequately access it and dump the contents).
These days most often the matrix is welded in stainless steel, coated with platinum and the other precious metals needed for catalysis to occur. IOW- sometimes it's a real PIA cuz you've got to get it all or risk a big chunk coming free down the road and blocking the exhaust. Rattle may be obvious (sometimes you can hear it just sitting in the car at idle), or require disassembly and a good shake to hear. If you think you've got a problem, visual inspection is the best idea. If the catalyst has collapsed, it can make no noise- just completely plug that bank of exhaust. One thing you can bet on if you de-cat... rasp! Another quick check for equal flow would be to just slide back the wide clamps holding the cat-back exhaust on, and see if both sides are flowing freely and equally at idle on up... just wait til mid-day when the neighbors are at work! 
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