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04-28-2015, 05:11 PM
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#1 |
 
Drives: 2014 Z/28 #398 Join Date: Dec 2014
Location: Homewood
Posts: 219
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Grinding gears?!?!?!
Anyone ever hear grinding noise coming from the trans or clutch while backing up?
It has happened to me 4 times now over the 4 months I have had it, each time at the same distance down the driveway. The first time I thought I ran a pine cone over...no pine cone. Second time I new it was metal grinding, the last 2 times were real loud. I can not reproduce it at the dealer (of course)......... so just wondering about the other z/28's out there 
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04-28-2015, 08:10 PM
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#2 |
   
Drives: 2016 Nightfall Gray Metallic SS Join Date: Dec 2013
Location: NC
Posts: 1,011
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No issues with my 2014.
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 2016 Nightfall Gray Camaro SS |
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04-28-2015, 08:42 PM
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#3 |
       
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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not yet...silent so far. An occasional pop from the rear on a tight turn from a dead stop.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
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04-29-2015, 07:40 AM
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#4 |
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Drives: 2014 Z/28 #398 Join Date: Dec 2014
Location: Homewood
Posts: 219
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Thanks guys
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04-29-2015, 09:39 AM
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#5 |
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Runs with scissors...
Drives: '14 Z/28s SIM/SW Join Date: Jan 2013
Location: Austin, TX
Posts: 1,439
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This gearbox can be extremely notchy and balky when breaking in. Mine refused to execute the 4-3 downshift at anything over 3K rpm on the downshift -- which is extremely frustrating during lapping sessions.
I solved that with Amsoil for the gearbox (though Redline also makes a great product that helps this). Took the car out after the change, and practiced the 4-3 downshift over and over to help "train" the gearbox and get things to mesh. On my next track day it improved by 90+%...
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04-29-2015, 02:05 PM
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#6 |
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Drives: 2014 Z/28 #398 Join Date: Dec 2014
Location: Homewood
Posts: 219
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Thanks brt3
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04-29-2015, 03:35 PM
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#7 |
Drives: 13' 1LE Join Date: Apr 2012
Location: Canada
Posts: 2,640
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Synthetic oil in the trans along with a seperate clutch oil reservoir is a great investment to protect your trans in the long run..Do it before its too late.
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13' 1LE
Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me. |
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04-29-2015, 03:45 PM
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#8 | |
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Drives: 2014 Z/28 #398 Join Date: Dec 2014
Location: Homewood
Posts: 219
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Quote:
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04-29-2015, 04:31 PM
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#9 | |
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Runs with scissors...
Drives: '14 Z/28s SIM/SW Join Date: Jan 2013
Location: Austin, TX
Posts: 1,439
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Quote:
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04-29-2015, 06:11 PM
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#10 | |
Drives: bicycle Join Date: Jun 2014
Location: Digging for oil
Posts: 375
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Quote:
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04-29-2015, 07:23 PM
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#11 | |
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Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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Quote:
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
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04-29-2015, 08:42 PM
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#12 |
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Jumanji
Drives: '14 Z/28 - AGM - No A/C Join Date: Mar 2014
Location: Alaska
Posts: 1,688
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IIRC, the transmission and diff, are connected via the cooling lines. So If I change the diff fluid, should I not also be changing the trans fluid at the same time?
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04-29-2015, 08:47 PM
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#13 | |
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Jumanji
Drives: '14 Z/28 - AGM - No A/C Join Date: Mar 2014
Location: Alaska
Posts: 1,688
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Quote:
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05-08-2015, 10:45 PM
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#14 |
 
Drives: 2015 Z/28, 2015 F-Type R Join Date: Jan 2015
Location: NJ
Posts: 7
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Had 1st gear/syncro go in my trans after my 2nd track day. Dealer replacing under warranty w/o push back. Strange gear to go since it's not used at the track and I don't hard launch the car, proper break in, etc. Perhaps a fluke issue.
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15 Z/28 Black (Track)
15 F-Type R (Street) |
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