10-15-2020, 05:18 PM | #1 |
Drives: 2015 Chevrolet Camaro 2SS Join Date: Aug 2019
Location: Louisiana
Posts: 5
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L99/6L80E Issues
hey guys, having some problems with my transmission as of recent. The car is a 2015 2SS with an L99 and the 6l80E. The trans does not want to shift at anything above light throttle all the way through wide open. However, the only time it appears to be an issue, is the 2-3 shift. The car has a set of headers, a catback exhaust, a cold air intake, and a street tune from a local performance shop. I brought the car to the tuner first, and he could not find a problem with the tune, and even after resetting the trans to the stock tune, it was still having the same issue. Any, and I mean any, insight will help. I'm pulling my hair out trying to figure out what could be causing this. Just had the trans flushed as well by the dealer at 55k miles.
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10-15-2020, 07:11 PM | #2 |
Stovebolt BluFlame 6
Drives: '12 2LT/RS, IBM; '20 Traverse Prem Join Date: Oct 2011
Location: Wherever!
Posts: 893
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Was it an issue before the tranny flush?
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10-15-2020, 07:19 PM | #3 |
Give speed a chance
Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019
Location: Mesa, Az
Posts: 2,233
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How about when you shift in manual mode with the tap shift? Have you tried different traction control settings? May want to check fluid level also. I'm sure the techs at the dealer filled it properly but you never know.
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2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.
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10-15-2020, 08:05 PM | #4 |
Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016
Location: Spring Hill, FL
Posts: 4,575
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I wonder if the tuner tried an adapt reset/relearn. Arizona28 has a good point concerning behavior in Tap Shift mode.
I would be checking fluid levels first off. Dealer service bays are not immune to mistakes.
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2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI
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10-19-2020, 10:06 AM | #5 |
Drives: 2010 Camaro 2SS Join Date: Mar 2018
Location: Michigan
Posts: 157
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Mine will slip between 2nd and 3rd on first start up. It will not do it after that until it cools all the way down again.
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GPI SS3 cam with top end goodies,Circle D 4c 3800 w/Derale trans cooler kit sold by GPI,3.90 yukon gears,Kooks long tube headers,Roto fab cold air intake, Corsa extreme 3" cat back, Dyno tuned by Andrews Auto Georgetown MI, Heritage Grille, T4 splitter with under tray, Anvil spoiler,MRR 228 reps with Nitto NT555G2 tires 315 rear 275 fronts,BMR poly bushings,HD Diff cover from RDP,Raytech install kit
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10-19-2020, 06:51 PM | #6 |
Fast Cars and Old Guitars
Drives: 2015 2SS RS (L99, baby!) Join Date: Apr 2012
Location: N. CA
Posts: 3,973
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I lost a torque converter after a tune. Can’t say if it was related or not. But imo, it was. Never the less, shifts got all jacked up. Hung in gears, NEVER would go into 6th, early, high rpm downshifts, higher rpm upshifts, etc. Finally got the CEL. Had to replace the TC. Dealer job...
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05-13-2021, 10:03 AM | #7 |
Drives: 2014 Camaro SS / 2SS Join Date: May 2021
Location: Minnesota
Posts: 4
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hey guys .Im having trouble with my trans shifting up in M tap mode on its own .
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05-13-2021, 02:51 PM | #8 |
Drives: 2011 SS-RS Join Date: May 2011
Location: FLORIDA
Posts: 11,435
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Are you saying it doesn't upshift on it's own in M, tap mode? If so, it is not supposed to till YOU do it.
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TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.
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05-13-2021, 03:50 PM | #9 |
Fast Cars and Old Guitars
Drives: 2015 2SS RS (L99, baby!) Join Date: Apr 2012
Location: N. CA
Posts: 3,973
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^^ This. If not, Are you tuned? Recently?
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“I don’t want to belong to any club that would have me as a member.” - Groucho Marx
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05-13-2021, 06:51 PM | #10 |
Drives: 2011 SS-RS Join Date: May 2011
Location: FLORIDA
Posts: 11,435
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Guess he didn't really have a problem and figured it out? lol.
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TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.
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05-14-2021, 07:38 AM | #11 |
Drives: 2014 Camaro SS / 2SS Join Date: May 2021
Location: Minnesota
Posts: 4
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morning peeps. Yes ,stage 2 cam . cold air intake .kooks headers ,Borla Exhaust .
tuned by CJ tunes . Set in Manual mode . Ill tap shift up the gears . most often . Tap into 3 rd . on its own . will go to fourth, right away . sometimes 4th to fifth. no engine lights, more often at higher speeds, does not hit the limiter. |
05-14-2021, 07:40 AM | #12 |
Drives: 2014 Camaro SS / 2SS Join Date: May 2021
Location: Minnesota
Posts: 4
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took it to the shop that put the tune in. and installed the cam .Excellent shop known around the metro for his good work .
Do you think he could get it to up shift .... not |
05-14-2021, 07:50 AM | #13 |
Fast Cars and Old Guitars
Drives: 2015 2SS RS (L99, baby!) Join Date: Apr 2012
Location: N. CA
Posts: 3,973
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Again, as strange as a torque converter sounds for creating tap and auto shift issues, that’s what mine was. It took quite a while for the CEL to light. Right after a tune!
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“I don’t want to belong to any club that would have me as a member.” - Groucho Marx
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05-14-2021, 08:22 AM | #14 |
Drives: 2014 Camaro SS / 2SS Join Date: May 2021
Location: Minnesota
Posts: 4
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Very strange . I was thinking it was the switch itself . I would have thought The Tuner/ mech. Would have figured that out . Still at the shop , Im telling him to keep it until it up shifts on him . Like have a horse with three legs .
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Tags |
issues, l99, shifting, transmission |
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