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06-04-2021, 02:50 PM
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#1 |
 
Drives: Black 2012 ZL1 Join Date: Mar 2013
Location: Buffalo Grove
Posts: 433
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MSRC issue (I think)
Had all 4 shocks replaced last week. No errors, I can turn on the various modes, however it doesn't feel like it's actually changing anything. Even in PTM 5 the car seems way too soft. Is there any kind or reset or something I need to do after install?
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06-04-2021, 07:14 PM
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#2 |
Drives: '12 SIM ZL1, 1 of 49 Join Date: Sep 2011
Location: Eastern TN
Posts: 459
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No reset necessary. If there is no "stabilitrac" message all should be good.
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Under Hood - Painted strut bar ends w/custom Polished Stainless mounting hardware, E2 CC, RotoFab CAI, ZL1 underhood decal, Amsoil oil, Black billet strut covers, Metco pulleys, intercooler reservoir, JRE 75 RWHP package.
Chassis - Hawk ceramic brake pads, ZL1 wheel decals, Amsoil fluids Interior - A pillar gauge pod w/Aeroforce Interceptor gauges, Polished ZL1 speaker rings, ZL1 mats and console lid, Custom GPS mount Exterior - 3M clear bra, LED driving lights, PIAA Plasma Ion yellow fog lights, Window tint, CF bowties, Technostalgia sequential tail lights |
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06-04-2021, 08:16 PM
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#3 | |
     Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
If you drive at 70 and go from tour to PTM 5 if it doesn't bounce hard for a couple of seconds its not working. Assuming you have a coupe and not a vert. |
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06-07-2021, 08:38 AM
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#4 |
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Drives: Black 2012 ZL1 Join Date: Mar 2013
Location: Buffalo Grove
Posts: 433
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Yes its a coupe. It's like I basically have no struts, bouncing horribly, nearly lost it on the highway at 75 when I hit a decent bump in the road. All 4 corners are new.
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06-07-2021, 09:20 AM
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#5 |
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Drives: 2013 ZL1 and 2019 Ram Laramie Join Date: May 2017
Location: Milwaukee
Posts: 1,259
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Are you certain they are the correct shocks? Who performed the work and who purchased the shocks?
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06-07-2021, 10:18 AM
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#6 |
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Drives: Black 2012 ZL1 Join Date: Mar 2013
Location: Buffalo Grove
Posts: 433
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Ordered these parts from Rock Auto
P/Ns 580428 (Alternate/OEM Part Number(s): 20951587, 22902678, 22952188, 580382) 580429 (Alternate/OEM Part Number(s): 20951588, 22902679, 22952189, 580383) 2x 580445 (Alternate/OEM Part Number(s): 19300041, 20942614, 580388) Installed by a local Chevy dealer |
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06-07-2021, 11:58 AM
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#7 | |
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Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
Installed by a local Chevy dealer[/QUOTE] That's scary in itself... Any codes on the DIC? I assume not or you would have posted. Did they reconnect the harness for each strut? If they didnt it should have thrown a code for no +-volts at the SCM. Are the Tour/Sport lights active when selecting? Hope they didnt break or forget to reconnect the the Strut position sensors for each wheel. |
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06-07-2021, 02:13 PM
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#8 |
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Drives: Black 2012 ZL1 Join Date: Mar 2013
Location: Buffalo Grove
Posts: 433
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No codes, tour/sport comes on and I can select the modes as normal. They replaced the connectors (something about without a special tool that they didn't have so they needed to be replaced). My childhood friend is the service manager so I know he wouldn't screw me on what was needed.
If the position sensors weren't connected would it throw codes or not switch modes (or maybe thats the connector he was talking about they replaced)? |
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06-07-2021, 07:53 PM
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#9 | |
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Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
The connectors they are most likely referring to are the connectors on the struts. You need a depining tool to release them, I just use a very long skinny pair of needle nose, my guess they were just hacks and cut them of because they were to lazy to depin them. If the position sensors were not connected I would think that would be a code becasue the SCM wouldn't see the required Volt range of .25-.4.75V. If your buddy will help you see if they have somebody that has worked on vettes with MRC and they should be able to isolate whats going on quickly. If not have him get a Scan tool and connect to the SCM, it should show the following if good; Battery Voltage 11-14V LF,RF,LR,RR Damper actuator in mA, expected value varies. LF,RF,LR,RR Position Sensor .25-.4.75V Suspension System Module Tour button NOT pressed - Normal, Tour Button pressed- Comfort, Sport mode, Sport mode pressed - track Suspension Position Sensor 5 V reference -4.8-5.2 V If he doesn't see those things probably will need to reprogram, but make sure they know what they are doing, like the battery has to test good and shouldn't have a charger connected while still plugged into AC. If you screw up you may have to replace it. If that scares them I would check out a cadillac dealer they should have someone who has worked on CTS-V's. |
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06-08-2021, 09:40 AM
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#10 |
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Drives: Black 2012 ZL1 Join Date: Mar 2013
Location: Buffalo Grove
Posts: 433
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Gave the info to my buddy and they are looking into it. I'll update when I get some news.
Thanks! |
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