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#20-NA-236: Engine Overheats or Coolant Leak Under Rear of Vehicle - (Feb 10, 2021) Subject:  Engine Overheats or Coolant Leak Under Rear of Vehicle Brand: Model: Model Year: VIN: Engine: Transmission: from to from to ... Read More

This service bulletin was issued in May 1979, but the concepts and techniques are applicable toward 1960's Corvette to early 1980's Corvettes. Subject:    Cooling System Restrictions - Symptoms and Diagnosis Model and Year:   All... Read More

Subject:    Water Entry Into Fuel Tank (#1092) (D.S.T) Model and Year:  1968 - 1969 Corvette Source:  Chevrolet Engineering Service Letter Page Number:   29 Date:  69-4 Field reports indicate water entry... Read More

Subject:    Door Inner Panel Water Deflector Model and Year:  1957 Passenger Cars Source:  Chevrolet Service News Page Number:   3 Date:  September 1957 - Volume 29 - Number 9 Whenever service operations... Read More

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

Subject:  Vent the Window Regulator Motor Model and Year:  1965 - All Chevrolets Source:  Chevrolet Service News Page Number:  1 Date:  December, 1965 - Volume 37 - Number 11 Refer to article "Replacing Window... Read More

Subject:   Crankshaft to Water Pump Drive Belt Failure Model and Year:   1966 - 1967 Corvettes with 427 CU. IN. Engine and Air Conditioning Source:  Chevrolet Service Technical Bulletin Bulletin No:  67-T-26 Section... Read More

Subject: PAINT ETCHING/STAINING AND PERMANENT WATER SPOTTINGModel and Year:1985-91 ALL PASSENGER CARS AND TRUCKSSource: Chevrolet Service BulletinBulletin Number: 91-251-0B - (03/12/1991) A recent long term investigation has indicated that improper... Read More

Subject: Water Pump pulley FailuresModel Year: 1966 Corvette with 350 H.P., 327 cu. in. EngineDate: July 26, 1966Bulletin Number: DR #66-40Section: VI TO: ALL CHEVROLET DEALERS Some 1966 350 H.P., cu. in. Corvettes equipped with two or three groove... Read More

May 17, 2019 - GM TechLink Some 2014-2018 Silverado 1500, Sierra 1500; 2015-2019 Escalade, Tahoe, Suburban, Yukon; 2016-2019 CTS-V, Camaro, Corvette; and 2019 Silverado and Sierra models equipped with the 4.3L engine (RPO LV1, LV3), 5.3L engine ... Read More