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  1. Replies
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    HI Todd, Just leave them sit for 2 weeks at...

    HI Todd,

    Just leave them sit for 2 weeks at least.

    They will come loose and use a 10mm six point socket and LONG ratchet to move them AFTER you unload the tension by jacking the spring up...
  2. #20-NA-218: Possible Crank No Start or Extended Crank with DTC P12A6 - (Feb 23, 2021)

    #20-NA-218: Possible Crank No Start or Extended Crank with DTC P12A6 - (Feb 23, 2021)

    2020 Corvette

    Subject: Possible Crank No Start or Extended Crank with DTC P12A6



    Condition
  3. Replies
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    HI there, I would also check your connections...

    HI there,

    I would also check your connections at the battery.

    Sounds to me like the ground eyelet might be loose or the terminal itself.

    Allthebest, Paul
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    HI there, After some major digging, a few...

    HI there,

    After some major digging, a few things I found out.

    #1, yes, obtain a flexplate and they are readily available.

    #2, the research on the driveshaft/propeller shaft shows me that it...
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    HI there, #1, yes, I would always replace the...

    HI there,

    #1, yes, I would always replace the flywheel anyway due to age.

    #2, remember you may have to shorten the propeller shaft in between the tailshaft of the transmission and the yoke of...
  6. #20-NA-236: Engine Overheats or Coolant Leak Under Rear of Vehicle - (Feb 10, 2021)

    Chevrolet Corvette 2020

    Condition

    Some customers may comment on one or more of the following conditions:
    •Engine overheats
    •Coolant leak under rear of vehicle


    Cause
  7. #21-NA-033: Malfunction Indicator Lamp (MIL) Illuminated - Multiple Transmission DTCs

    Chevrolet Corvette 2020 2021

    Condition

    Some customers may comment that the MIL is illuminated.

    Some technicians may find one or more of the following DTCs set in the Transmission Control...
  8. Replies
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    HI Rob, No OBD2 scanner will get your codes. ...

    HI Rob,

    No OBD2 scanner will get your codes. This would have to be done at a GM dealership.

    Yes, noone I know really talks about the rear differential fluid, but I have seen nasty stuff but GM...
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    HI Todd, They do not have a torque...

    HI Todd,

    They do not have a torque specification. They have a DISTANCE specification.

    We are instructed to measure #1 before removal and then reinstall them at the same distance. This is...
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    HI Rob, Check to see if ONSTAR has a...

    HI Rob,

    Check to see if ONSTAR has a diagnostic trouble code out of the eLSD module or have it scanned.

    Check to confirm the last time the fluid was changed, we always like to have them changed...
  11. HI there, Take a look at this video I did...

    HI there,

    Take a look at this video I did about ZO6/GS braking system.

    https://www.facebook.com/corvettemechanic/videos/970552146711170

    I dont like to machine the brake rotors, however, this...
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    HI there, #1 , I apologize for the delay. ...

    HI there,

    #1 , I apologize for the delay.

    #2, I usually roughen up the dipstick with some scotch-brite to allow the oil to grip the roughness and will help in reading the stick.

    #3, I am not...
  13. Replies
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    HI there, I have seen a few however these are...

    HI there,

    I have seen a few however these are normally due to abnormally high usage in high temperatures.

    That being said, I agree with lowering the level slightly to allow for expansion.
    ...
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    HI there, Yes, this is a subjective thing...

    HI there,

    Yes, this is a subjective thing based on availability.

    The normal sizes are fronts : 265/40ZR17 Rears 295/35ZR18

    I have used the following on ZO6 without issue.

    Front :...
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    Hi Todd, Are you talking about the center...

    Hi Todd,

    Are you talking about the center mounting points to the subframe????

    Allthebest, Paul
  16. Replies
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    Hi there, All my research does not give an...

    Hi there,

    All my research does not give an application.

    Allthebest, Paul
  17. #N202319660: Service Update - Valve Spring Failure - (Nov 20, 2020)

    #N202319660: Service Update - Valve Spring Failure - (Nov 20, 2020)

    NOTE: THIS RECALL IS VIN SPECIFIC AND YOU WILL RECEIVE A LETTER IF IT APPLIES TO YOUR VEHICLE

    Subject: N202319660 — Valve...
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    HI there, Also, please confirm that the recall...

    HI there,

    Also, please confirm that the recall was done at GM.

    The feedback relay that is installed at the recall can create inaccurate signals.

    If your battery has more than 12.5 volts and...
  19. #N202316880: Service Update - Transmission Control Module (TCM) Software Error

    Condition

    Certain 2020 model year Chevrolet Corvette vehicles may have a condition where diagnostic trouble codes (DTC’s) P1967 and/orP1968 may falsely set in the transmission control module...
  20. Yes, you would get a mailed notice. ...

    Yes, you would get a mailed notice.

    Allthebest, Paul
  21. #N202308320: Customer Satisfaction Program - Radio Display Inoperative

    Attention:

    All involved vehicles that are in dealer inventory must be held and not delivered to customers, dealer traded, or used fordemonstration purposes until the repair contained in this...
  22. #N202307690-01: Safety Recall - Driver Seat Belt May Not Lock in a Crash – US Only -

    Condition

    General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2020 model-year ChevroletCorvette vehicles. The seat-belt supplier for these vehicles...
  23. #17-NA-408: Information on Charge Air Cooler (CAC) Draining and Filling P0300

    The 6.2L V8 engine (RPO LT4), available in 2017-2021 Camaro ZL1 and Corvette models, features an Eaton Roots-type superchargerthat creates a maximum boost pressure of 67 kPa (9.7 psi). The air...
  24. I have a new one coming in Monday for a customer,...

    I have a new one coming in Monday for a customer, I will do a video this week.

    Allthebest, Paul
  25. Yeah, its tough to correctly seat the rear feet...

    Yeah, its tough to correctly seat the rear feet in the position cups.

    I will try to get a video together.

    Paul
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