Supporting Vendors / Dealers - Advertising - Shop

2007 Corvette: Service Bulletin: 6L80 Busy Shifting 30-50mph

Bulletin Number:  07.07.30.002

Condition
Some customers may comment on busy or frequent up and down shifts in 3rd, 4th, 5th or 6th gear at approximately 48-80 km/h (30-50 mph). The MIL may also be illuminated and a DTC P1751 stored in the TCM.

Cause
This condition may be caused by an undersized hole or debris in the control valve body spacer plate (305).

Correction
To correct this condition the control valve body spacer plate (305) must be replaced. The electrical connector seals (9, 10), fluid pump seals (18, 19), center support seal (20) and the filter plate assembly (311) should also be replaced. These parts are included in the filter plate kit listed below.

Changes to the control valve body spacer plate were implemented November 4, 2006 in transmission assemblies to prevent this condition.

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 - 2008 Corvette: GM TechLink: 6L80 or 6L90 Automatic Transmission Shift Conditions
Viewed 2273 times since Thu, Jul 3, 2014
2006 Corvette: Service Bulletin: 6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM))
Viewed 4760 times since Tue, Jul 15, 2014
2005 - 2006 Corvette: Service Bulletin: Manual Transmission Operating Characteristics
Viewed 857 times since Sun, Jul 13, 2014
2000 - 2006 Corvette: Service Bulletin: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870
Viewed 754 times since Mon, Jul 14, 2014
2005 - 2007 Corvette: Service Bulletin: Information on 2-3 Upshift or 3-2 Downshift Clunk Noise
Viewed 736 times since Mon, Jul 14, 2014
2008 Corvette: Service Information: Hydra-Matic 6L80 Six-Speed Automatic Car & Truck Transmission
Viewed 1079 times since Sun, Jul 6, 2014
2005 Corvette: Service Bulletin: Malfunction Indicator Lamp (MIL), Diagnostic Trouble Code (DTC) P0833, Cruise Control Inoperative (Adjust Clutch Release Switch)
Viewed 3815 times since Fri, Jul 18, 2014
2005 Corvette: Service Bulletin: Mis-Machined Transmission Countershaft Snap
Viewed 18814 times since Fri, Jul 18, 2014
2007 Corvette: Service Bulletin: Information Regarding Automatic Transmission Shift Lock Control Function
Viewed 732 times since Mon, Jul 14, 2014
2005 Corvette: Service Bulletin: Clutch Pedal Does Not Return to Up Position During Shifts at High Engine RPMs
Viewed 955 times since Fri, Jul 18, 2014