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 This Knowledgebase has been developed to cover the most frequently asked questions about Corvettes. Using our system, you can search for topics separated into categories by Corvette generation. Some of the information here comes directly from Chevrolet Service News publications, Service Bulletins, Recall Notices and other technical sources as indicated.
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Clutch and Transmission
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There were 27 articles found in this category:
 1993 - 2005: Service Bulletin: No Reverse, Second Gear or Fourth Gear (Replace Reaction Sun Shell with More Robust Heat Treated Parts)
Subject: No Reverse, Second Gear or Fourth Gear (Replace Reaction Sun Shell with More Robust Heat Treated Parts) Model and Year: 1993-2005 Corvette with 4L60/65-E Automatic Transmission (RPOs M30 or M32) Source: Chevrolet Dealer Sevice Bulletin Bulletin Number: 00-07-30-022C Date: NA This bulle ...
- 1999 - 2006: Service Bulletin: Intermittent Neutral from a Stop or 2-3 Shift
Date: April 19, 2006 Subject: Intermittent Neutral from a Stop or 2-3 Shift Bulletin: #PIP3002D Models: 1999-2006 GM Cars, Light Duty Trucks and Utilities equipped with 4L60E/4L65E transmissions The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this P ...
- 2000 - 2006: Service Bulletin: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870
Service Bulletin #: 02-07-30-001D Date: December 2005 Subject: Diagnostic Information on Diagnostic Trouble Code (DTC) P0894 and P1870 Model(s): 2000-2006 GM Passenger Cars and Light Duty Trucks 2003-2006 Hummer H2 2006 Hummer H3 2005-2006 Saab 9-7X with 4L60E or 4L65-E Automatic Transmission ...
- 2004 - 2007: Service Bulletin: Engine and Automatic Transmission/Transaxle Identification
Service Bulletin #: 06-00-89-031 Date: June 2006 Subject: Engine and Automatic Transmission/Transaxle Identification Model(s): 2004 - 2007 GM Passenger Cars and Trucks (Including Saturn) 2004-2007 Hummer H2 2006-2007 Hummer H3 2005-2007 Saab 9-7XAttached below is the PDF document for this ser ...
- 2005 - 2006: Service Bulletin: Manual Transmission Operating Characteristics
Bulletin No: 03-07-29-004B Date: September 2005 Subject: Manual Transmission Operating Characteristics Models: 2006 and Prior Passenger Cars and Light Duty Trucks 2006 and Prior Chevrolet and GMC Medium Duty Trucks 2006 and Prior Isuzu Medium Duty Trucks with Manual Transmission NOTE: This ...
- 2005 - 2006: Service Information: Release of DEXRON VI Automatic Transmission Fluid (ATF)
Service Bulletin #: 04-07-30-037A Date: August 19, 2005 Subject: Release of DEXRON VI Automatic Transmission Fluid (ATF) Model(s): 2005-2006 This bulletin is being revised to announce the use of DEXRON®-VI with the start of the 2006 model year production. DEXRON®-VI ATF General Motors ...
- 2005 - 2007: Service Bulletin: Intermittent Spongy Clutch Pedal Sticking To The Floor During Hard Acceleration And High RPM Shifts
Document ID# 1982105 Subject: Intermittent Spongy Clutch Pedal Sticking To The Floor During Hard Acceleration And High RPM Shifts - keywords contaminate fluid hydraulic #PIP4145 - (06/04/2007) Models: 2005-2007 Chevrolet Corvette, Corvette Z06 Equipped with a Tremec 6-speed Transmission RPO MM6 ...
- 2005 - 2007: Service Bulletin: Information on 2-3 Upshift or 3-2 Downshift Clunk Noise
Bulletin No: 01-07-30-042D Date: May, 2006 Subject: Information on 2-3 Upshift or 3-2 Downshift Clunk Noise Models: 2007 and Prior Passenger Cars and Light Duty Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X with 4L60-E or 4L65-E Automatic Transmission (RPOs M30, M32) NO ...
- 2005 - 2009: 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, ...
- 2005: Service Bulletin: Clutch Pedal Does Not Return to Up Position During Shifts at Hight Engine RPMs
Service Bulletin #:05-07-31-001A Date: August 17, 2005 Subject: Clutch Pedal Does Not Return to Up Position During Shifts at Hight Engine RPMs (Inspect Date Code and Replace Clutch Kit) Model(s): 2005 Chevrolet Corvette with Tremec T56 6-Speed Manual Transmission (RPOs M10, M12, MM6, MZ6 ) Con ...
- 2005: Service Bulletin: Malfunction Indicator Lamp (MIL), Diagnostic Trouble Code (DTC) P0833, Cruise Control Inoperative (Adjust Clutch Release Switch)
Service Bulletin #: 05-08-68-001 Date: n/a Subject: Malfunction Indicator Lamp (MIL), Diagnostic Trouble Code (DTC) P0833, Cruise Control Inoperative (Adjust Clutch Release Switch) Model(s): 2005 Chevrolet Corvette with Manual Transmission (RPO MN6) Condition Some customers may comment of a M ...
- 2005: Service Bulletin: Mis-Machined Transmission Countershaft Snap
DATE: October 21, 2004 SUBJECT: Service Bulletin 04-07-29-003 Mis-Machined Transmission Countershaft Snap Ring Groove (Inspect/Replace the Transmission) MODELS: 2005 Chevrolet Corvette 2005 Cadillac CTS-V with 6-speed manual transmission Corvette Transmission, Manual 6-SPD, Tremec (RPO MM6 or M ...
- 2005: Service Information: No Crank, PRNDL Inoperative
Owners of some 2005 Chevrolet Corvettes and 2004 - 05 Cadillac XLRs may experience a no-crank condition, with no codes in any module. The concern may be followed by an inoperative transmission range indicator (PRNDL). The Tech 2 will show the transmission range circuits are all reading high whe ...
- 2006 - 2008: Service Information: 6L80 or 6L90 Automatic Transmission Shift Conditions
Source: GM Techlink Date: October 2011 Subject: 6L80 or 6L90 Automatic Transmission Shift Conditions Models: 2006 - 2008 Chevrolet Corvette Several shift conditions may be present on some 2006-2008 STS-V, XLR-V, Corvette; 2007-2008 Escalade, Escalade ESV, Escalade EXT, XLR, Silverado, Sierra ...
- 2006: Information: 6L80 Automatic Transmission (RPO MYC)
Models: 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Purpose This bulletin introduces and highlights features of the new Hydra-Matic 6L80 Automatic Transmission. Introduction The Hydra-Matic 6L80 is the first member of a new family of fully automatic, six-speed, clutch-to- ...
- 2006: Recall: Engine Flywheel/Clutch Interference
UPDATED INFORMATION Date: April 5, 2006 Subject: 06523A – Customer Satisfaction Program Engine Flywheel /Clutch Interference Models: 2006 Chevrolet Corvette Equipped with a 6.0 L V8 (RPO LS2 – VIN Code U) or a 7.0 L V8 (RPO LS7 – VIN Code E) Engine and 6-Speed (RPO MM6 or MZ6 ...
- 2006: Service Bulletin: 4L60-E, 4L65-E Automatic Transmission fluid Leak from Oil Pump or Bell Housing Area
Subject: 4L60-E, 4L65-E Automatic Transmission Fluid Leak from Oil Pump or Bell Housing Area (Remove Small Burrs on Torque Converter Hub, Pump Drive Slots and Replace Torque Converter Hub-to-Oil Pump Seal Assembly (243) Models: 2006 Chevrolet Corvette with 4L60-E or 4L65-E Automatic Transmissi ...
- 2006: Service Bulletin: Diagnosis of Cracked or Broken Transmission Case
Service Bulletin #: 02-07-30-024B Date: August 2005 Subject: Diagnosis of Cracked or Broken Transmission Case Model(s): 2006 and Prior Cars and Light Duty Trucks 2006 and Prior Hummer H2 2006 Hummer H3 2005-2006 Saab 9-7X with 4L60/4L60-E/4L65-E or 4L80-E/4L85-E or Allison Series 1000 Automat ...
- 2006: Service Bulletin: 6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM))
Service Bulletin #: 06-07-30-002 Date: January 20, 2006 Subject: 6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM)) Model(s): 2006 Chevrolet Corvette with Transmission – Auto 6 Spd, HMD, 6L80 (RPO MYC) Condi ...
- 2006: Service Bulletin: Automatic Transmission, Busy Shifting, MIL Illuminated, DTC P1751
Service Bulletin #: 1741321 Date: December 9, 2005 Subject: Automatic Transmission, Busy Shifting, MIL Illuminated, DTC P1751 Model(s): 2006 Chevrolet Corvette, 2006 Cadillac XLR-V and STS-V, 2007 Cadillac Escalade, 2007 GMC Yukon Equipped with 6L80 (RPO - MYC) Automatic Transmission The foll ...
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