Corvette Action Center Knowledgebase

1957 - 1962 Corvette: Chevrolet Advance Information: New Clutch Pressure Plate Released for 1962 Corvette

Subject: New Clutch Pressure Plate Released for 1962 Corvette Model and Year: 1957 - 1962 Corvette Source: Chevrolet Advance Information Letter - Central Office Bulletin No: A.I. #62-3 Date: ... Read More

1968 Corvette: Service Bulletin: Inadequate Cooling

Dec 1, 2014 1968 corvette, service bulletin, inadequate cooling, cooling, 327 cu. in., improved cooling, valance panel, fan clutch, radiator, fan belt 0 0 859 0/5 (0 Vote)

Subject: Inadequate Cooling Model and Year: 1968 Corvette with 327 Cubic Inch Engine Source: Chevrolet Service Technical Bulletin Bulletin No: 68-T-13 Section: VI Date: May... Read More

1970 Corvette: Service Bulletin: Water Pump Bearing and/or Shaft Failures

Nov 29, 2014 1970 corvette, service bulletin, water pump, bearing, shaft, failure, failures, fan clutch, pulley, run-out, excessive run-out 0 0 964 0/5 (0 Vote)

Subject: Water Pump Bearing and/or Shaft Failures Model and Year: V-8 Engines with Fan Clutch Source: Chevrolet Dealer Service Technical Bulletin Bulletin No: 71-T-37 Section: VI Date: ... Read More

1963 Corvette: Service Bulletin: 3 and 4-Speed Transmission Clutch Gear Bearing Retainer Failure

Oct 19, 2014 1963 corvette, service bulletin, 3-speed, 4-speed, transmission, clutch, gear, bearing, retainer, failure, saginaw, muncie, warner, chevy II, gall 0 0 832 0/5 (0 Vote)

Subject: 3 and 4-Speed Transmission Clutch Gear Bearing Retainer Failure Model and Year: 1963 Corvette, Chevy II, and 1000 Series (except with 409" engine) Source: Chevrolet Technical Service Bulletin Bulletin No: ... Read More

1986 - 1987 Corvette: Service Bulletin: Clutch Master Cylinder Push Rod Bushing

Sep 18, 2014 1986 corvette, 1987 corvette, service bulletin, chevrolet service bulletin, clutch, master cylinder, push rod, bushing 1 1 2045 5/5 (1 Vote)

Subject: Clutch Master Cylinder Push Rod Bushing Model Year: 1986 - 1987 Corvette with Manual Transmission Source: Chevrolet Dealer Service Bulletin Bulletin No: 87-114, Section 7C Date: April, 1987 TO: ALL... Read More

1990 Corvette: Service Bulletin: L98 and LT5: Revised Air Conditioning Control Circuit Diagnosis

Aug 2, 2014 1990 corvette, zr-1, corvette zr-1, l98, lt5, l98 engine, lt5 engine, a/c, air conditioning, revised, control circuit, diagnosis, ecm, a/c clutch, diagnostic chart, 90-400-6E 1 0 5672 4/5 (4 Votes)

Subject: REVISED AIR CONDITIONING CONTROL CIRCUIT DIAGNOSIS Model and Year: 1990 CORVETTE WITH 5.7L L98 AND LT5 ENGINES Source: Chevrolet Dealer Service Bulletin Bulletin Number: 90-400-6E THIS BULLETIN CANCELS AND SUPERSEDES DEALER... Read More

1989 - 1990 Corvette: Howling, or Squealing Sound Coming From Clutch

Jul 29, 2014 1989 corvette, 1990 corvette, howling, squealing, clutch, crankshaft, pilot, bushing, jim ingle 0 0 865 0/5 (0 Vote)

From Jim Ingle, GM Powertrain Engineer:"The problem you're most likely experiencing is a noisy crankshaft pilot bushing. There is a later design released for service that tends to retain grease better than the one you have and therefore doesn't... Read More

1990 Corvette: Service Bulletin: New Low and Reverse Clutch Support Selective Plate Dimensions

Jul 29, 2014 1990 corvette, service bulletin, new low, reverse, clutch, support, selective, plate, dimensions, 90-223-7A, 4l60, transmission, automatic transmission 0 0 1009 0/5 (0 Vote)

Subject: NEW LO & REV. CLUTCH SUPPORT SELECTIVE PLATE DIMENSIONS Model and Year: 1990 B, F, Y CARS AND ALL TRUCKS AND VANS WITH 4L60 (700-R4) AUTOMATIC TRANSMISSION Source: Chevrolet Service Bulletin Bulletin Number: 90-223-7A - (05/21... Read More

1990 Corvette: Service Bulletin: Clutch Apply Plate Material Changed to Powdered Metal

Jul 29, 2014 1990 corvette, service bulletin. clutch, apply, plate, powdered metal, 90-189-7A, 4060, transmission, automatic transmission 0 0 710 0/5 (0 Vote)

Subject: CLUTCH APPLY PLATE MATERIAL CHANGED TO POWDERED METAL Model and Year: 1990 ALL CARS, TRUCKS, VANS WITH 4L60 (700-R4) AUTOMATIC TRANSMISSION Source: Chevrolet Service Bulletin Bulletin Number: 90-189-7A - (03/06/1990) This bulletin... Read More

1993 Corvette: Service Bulletin: Transmission "Whine" Noise, Loss of Motion in all Gears, or Missing Clutch Disc Rivets

Jul 29, 2014 1993 corvette, service bulletin, transmission, whine, noise, loss of motion, gears, missing, clutch, disc rivets, 37-71-40 0 0 1712 0/5 (0 Vote)

Subject: TRANSMISSION "WHINE" NOISE, LOSS OF MOTION IN ALL GEARS, OR MISSING CLUTCH DISC RIVETS (REPLACE TRANSMISSION CLUTCH HOUSING) Model and Year: 1993 CHEVROLET CORVETTE WITH SIX-SPEED MANUAL TRANSMISSION AND 5.7L (LT1) ENGINE (VIN CODE P) ... Read More

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