2014 - 2016 Corvette: Service Bulletin: #17-NA-278: Convertible Top Creak or Snap Noise While Driving
#17-NA-278: Convertible Top Creak or Snap Noise While Driving - (Aug 29, 2017)
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Convertible Top Creak or Snap Noise While Driving |
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Brand:
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Model:
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Model Year:
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VIN:
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Engine:
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Transmission:
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from
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to
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from
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to
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Chevrolet
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Corvette Convertible
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2014
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2016
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All
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All
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Involved Region or Country
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North America, Japan, Europe, Middle East, Russia
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Condition
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Some customers may comment on hearing a creak or snapping noise from the convertible top while driving their vehicle. The noise may be loudest when the vehicle has sat in the sun for a length of time.
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Cause
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The cause of the condition may be that the fasteners (1) at the ends of the #3 Bow (2) may have lost torque.
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Correction
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Following the Service Procedure below, remove the original smaller screws and install the new larger M6 screws referenced in the Part Table.
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- Service Procedure
Warning: Due to bleed off of the hydraulic pressure, the folding top will have to be supported or held in mid-position by an assistant. Manual operation of the top cannot be attempted for at least 5 minutes from the last time of activation.
- Power the folding top into the mid-open position.
- Position the top to best reach under the headliner to access the 3 retaining screws on each end of the #3 Bow.
Note: It will be necessary to use a small wrench or tool similar to the graphic example above, in order to access the screws.
Important: Replace the screws one at a time. DO NOT remove or loosen all 3 screws on one side, at the same time.
- Starting on either side, replace the current M5 retaining screws with the new M6 self threading screws.
Tighten
Tighten the screws to 3 Y (27 lb in).
- Repeat and replace the 3 screws on the opposite side.
- Ensure proper operation of the folding top.
- Parts Information
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Causal Part
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Description
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Part Number
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Qty
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X
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BOLT, F/TOP FRT LAT STKR
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11549154
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6
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- Warranty Information
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For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
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Labor Operation
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Description
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Labor Time
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6080238*
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#3 Bow Retaining Screws Replacement
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0.6 hr
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*This is a unique Labor Operation for Bulletin use only.
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Article ID: 1381
Created: September 4, 2017
Last Updated: September 4, 2017
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/2014-2016-corvette-service-bulletin-17-na-278-convertible-top-creak-or-snap-noise-while-driving-1381.html