Supporting Vendors / Dealers - Advertising - Shop

2005 - 2009 Corvette: Service Bulletin: Clutch Hydraulic System -- New Service/Owner Maintenance Information

#07-07-31-001A: Clutch Hydraulic System - New Service/Owner Maintenance Information - (Sep 11, 2008)

Subject:   Clutch Hydraulic System -- New Service/Owner Maintenance Information
Models:   2005-2009 Chevrolet Corvette (Including Z06 and ZR1) with Tremec 6-Speed Manual Transmission (RPOs MM6, MZ6, MH3)
--------------------------------------------------------------------------------
This bulletin is being revised to update the models to 2009. Please discard Corporate Bulletin Number 07-07-31-001 (Section 07 -- Transmission).
--------------------------------------------------------------------------------
This bulletin is being issued to provide dealers with additional information on servicing the clutch hydraulic system. Please also advise customers of this new maintenance information.

Some cases have been found where the vehicle's clutch hydraulic system was contaminated with water. Higher than expected levels of water in the clutch fluid greater than 2% may cause the clutch fluid to boil. The presence of water in the fluid lowers the boiling point significantly; when this occurs, the driver may lose customary clutch pedal feel and performance.

To eliminate the opportunity for moisture to enter the clutch hydraulic system:

• The clutch fluid level inspection should be a VISUAL inspection only. Look through the transparent reservoir and observe the fluid level. Avoid removing the cap. DO NOT remove the cap just to top-off clutch fluid. Leave the system closed and sealed. During PDI inspection or routine service, the cap should not be opened for just an inspection.
• Open containers of DOT 4 clutch fluid have a two week shelf life. DO NOT use fluid if the container opening date is unknown or older than two weeks. DO NOT mix or re-use old fluid. Current service information already covers the issue of reuse.
• To provide the best clutch operation, it is recommended that the owner change the clutch fluid every two years. Please flush and replace with P/N 88958860 (P/N 88901244 in Canada) or equivalent DOT 4.

0 (0)
Article Rating (No Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
2006 - 2012 Corvette: Service Bulletin: #PI0773: Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear - (Jul 25, 2012)
Viewed 174 times since Sun, Mar 19, 2017
2000 - 2006 Corvette: Service Bulletin: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870
Viewed 777 times since Mon, Jul 14, 2014
2005 - 2006 Corvette: Service Bulletin: Release of DEXRON VI Automatic Transmission Fluid (ATF)
Viewed 1183 times since Fri, Jul 18, 2014
2005 Corvette: Service Bulletin: Malfunction Indicator Lamp (MIL), Diagnostic Trouble Code (DTC) P0833, Cruise Control Inoperative (Adjust Clutch Release Switch)
Viewed 3876 times since Fri, Jul 18, 2014
2007 Corvette: Service Bulletin: Information Regarding Automatic Transmission Shift Lock Control Function
Viewed 776 times since Mon, Jul 14, 2014
2005 - 2006 Corvette: Service Bulletin: Manual Transmission Operating Characteristics
Viewed 901 times since Sun, Jul 13, 2014
2006 Corvette: Service Bulletin: Automatic Transmission, Busy Shifting, MIL Illuminated, DTC P1751
Viewed 842 times since Fri, Jul 18, 2014
2005 Corvette: Service Bulletin: Clutch Pedal Does Not Return to Up Position During Shifts at High Engine RPMs
Viewed 985 times since Fri, Jul 18, 2014
2006 Corvette: Service Bulletin: 4L60-E, 4L65-E Automatic Transmission fluid Leak from Oil Pump or Bell Housing Area
Viewed 1361 times since Tue, Jul 15, 2014
2006 - 2014 Corvette: Service Bulletin: #PIP5429: 2-3 Upshift Slip or Flare - (Oct 10, 2016)
Viewed 1344 times since Thu, Oct 13, 2016