Corvette Action Center Knowledgebase

1990 Corvette: Service Bulletin: Loss of Heating or Cooling Control

Nov 29, 2014 1990 corvette, service bulletin, heating, cooling, loss, control, hvac, air conditioning, c68, rpo c68, ecm, ccm, a/c, delco-loc 0 0 1806 0/5 (0 Vote)

Subject: Loss of Heating or Cooling Control Model and Year: 1990 Y Car with Electronic Air Conditioning (C68) Option Source: Chevrolet Dealer Service Bulletin Bulletin No: 90-101-1A (Corporate Bulletin No:... Read More

1990 - 1996 Corvette: HVAC Diagnostic Codes

Aug 2, 2014 1990 corvette, 1991 corvette, 1992 corvette, 1993 corvette, 1994 corvette, 1995 corvette, 1996 corvette, hvac, diagnostic code, diagnostic codes, heating, ventilation, a/c, air conditioning, rpo c68, electronic climate control 1 7 12720 4.55/5 (11 Votes)

On 1990 to 1996 Corvettes equipped with RPO C68 (electronic climate control), it is possible to read the HVAC system diagnostic codes from the climate control panel on the dashboard. To enter the diagnostic mode, press the fan up and down arrow... Read More

1990 Corvette: Service Bulletin: Loss of Heating or Cooling Control

Aug 1, 2014 1990 corvette, service bulletin, hvac, heating, cooling, ac, air conditioning, ventilation, rpo c68, c68, 90-378-1A, code 01, code02 0 0 1228 0/5 (0 Vote)

Subject: Loss of Heating or Cooling Control - New ProgrammerModel and Year: 1990 CORVETTESource: Chevrolet Service BulletinBulletin Number: 90-378-1A - (10/25/1990)TO: ALL CHEVROLET DEALERSCondition:The customer may comment on a loss of heating or... Read More

1991 Corvette: Service Bulletin: Loss of Heat/Cooling Control

Aug 1, 2014 1991 corvette, service bulletin, hvac, heating, ventilation, air conditioning, ac, loss, revised programmer, cooling, 91-200-1A, rpo c68, c68 0 0 1202 0/5 (0 Vote)

Subject: LOSS OF HEAT/COOLING CONTROL REVISED PROGRAMER AVAILABLE Model and Year:1991 CORVETTE WITH 5.7L ENGINESource: Chevrolet Service BulletinBulletin Number: 91-200-1A - (02/04/1991) Condition: On some vehicles the temperature of air coming from... Read More

2014 - 2019 Corvette: GM TechLink: Warble Sound from Rear of Vehicle

Aug 25, 2020 2014 corvette, 2015 corvette, 2016 corvette, 2017 corvette, 2019 corvdette, gm techlink, transmission, rpo m5u, m5u, differential, rear differential, warble, differential cover, bushing 0 1 4218 3.5/5 (4 Votes)

Warble Sound from Rear of Vehicle July 30, 2020GM TechLink Some 2014 - 2019 Corvette models equipped with the 6.2L V8 engine (RPO LT1) and 8L90 automatic transmission (RPO M5U) may have a warble-type sound coming from the rear of the vehicle with... Read More

2020 Corvette: #20-NA-061: 2020 Chevrolet Corvette New Model Features

May 29, 2020 2020 corvette, service bulletin, 20-NA-061, new model, features, tremec, dual clutch, rpo m1l, rpo lt2, lt2 engine, brakes, transmission, steering, z-mode, my mode 0 0 2984 0/5 (0 Vote)

#20-NA-061: 2020 Chevrolet Corvette New Model Features - (Mar 6, 2020) Subject: 2020 Chevrolet Corvette New Model Features Brand: Model: Model Year: VIN: Engine: Transmission: From: To: From: To: Chevrolet Corvette 2020 ... Read More

2020 Corvette: GM TechLink: Rushing Air Sound in PCV Tube

May 21, 2020 2020 corvette, pcv, pcv valve, pcv tube, lt2 engine, rpo lt2, positive crankcase ventilation, crankcase, crankcase ventilation, pcv fitting 0 0 2120 0/5 (0 Vote)

2020 Corvette: Rushing Air Sound in PCV Tube GM TechLink May 21, 2020 Some 2020 Corvette models may have a rushing air or hissing sound coming from the engine compartment during normal engine operation. The hiss or vacuum leak sound is at the foul... Read More

2019 Corvette ZR1 - Service Update Bulletin - 18267 Flames From Exhaust Due To Misfire - Flames Self Extinguish

Oct 1, 2018 2019 corvette, zr1, corvette zr1, c7 zr1, lt5, lt5 engine, service bulletin, rpo lt5, misfire, engine misfire, deceleration, fuel injector, engine control module, ecm 0 0 1438 1/5 (1 Vote)

Service Update18267 Flames From Exhaust Due To Misfire - Flames Self Extinguish Reference Number: N182173240 Release Date: September 2018 Condition: Certain 2019 model year Chevrolet Corvette vehicles equipped with RPO LT5 (6.2L... Read More

2017 - 2019 Corvette: Service Bulletin: Brake Cooling Deflectors/Ducts for J56 and J57 Brakes (Track Use Only)

Apr 3, 2018 2017 corvette, 2018 corvette, 2019 corvette, grand sport, z06, zr1, c7 grand sport, c7 z06, c7 zr1, j56, blocker rings, brake cooling ducts, brake ducts, rpo j57 0 0 3368 4/5 (2 Votes)

#16-NA-363: Brake Cooling Deflectors/Ducts for J56 and J57 Brakes (Track Use Only) - (Feb 26, 2018) Subject: Brake Cooling Deflectors/Ducts for J56 and J57 Brakes (Track Use Only) Brand: Model: Model Year: VIN: Engine: ... Read More

2014 - 2017 Corvette: GM TechLink: Repeat DTCs P2096 and P2098

Oct 26, 2017 2014 corvette, 2015 corvette, 2016 corvette, 2017 corvette, gm techlink, rpo m5u, transmission, 8l90, check engine light, p2096, p2098, dtcs 0 1 1108 0/5 (0 Vote)

Some 2014 - 2017 Corvette models equipped with the 6.2L V8 engine (RPO LT1) and 8L90 automatic transmission (RPO M5U) may have an illuminated Check Engine MIL and repeat DTCs P2096 (Post Catalyst Fuel Trim System Low Limit Bank 1) and P2098 ... Read More

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