Corvette Action Center Knowledgebase

1990 - 1995 Corvette ZR-1: Technical Article: LT5 Secondary Port Operation & Vacuum Diagnosis

LT5 Secondary Port Operation & Vacuum Diagnosis by Robert Loszewski Copyright 2001 Before getting into diagnosing the LT5 engine's secondary port vacuum system, I thought it would be a good idea to take this opportunity to clear up a few... Read More

1990 Corvette ZR-1: Campaign: Fuel Lines May Crack / Fuel Leak

Jul 24, 2014 1990 corvette, zr-1, corvette zr-1, campaign, recall, recall notice, fuel line, fuel lines, crack, fracture, fuel leak, lt5, lt5 engine, 90-C-10 0 0 845 0/5 (0 Vote)

Subject: CAMPAIGN: FUEL LINES MAY CRACK/FUEL LEAK Model and Year: 1990 CHEVROLET CORVETTES WITH LT5 ENGINESSource: Chevrolet Service BulletinBulletin Number: 90-C-10 - (01/30/1990) The National Traffic and Motor Vehicle Safety Act, as amended,... Read More

1990 Corvette ZR-1: Service Bulletin: Leaking Radiator Hose Service

Jul 24, 2014 1990 corvette, zr-1, corvette zr-1, service bulletin, leaking, radiator, hose, service 0 0 784 0/5 (0 Vote)

Subject: LEAKING RADIATOR HOSE SERVICE (REPLACEMENT OF RADIATOR HOSE)Model and Year: 1990 CORVETTE WITH 5.7L (VIN CODE J) ENGINESource: Chevrolet Service BulletinBulletin Number: 90-308-6B - (07/19/1990) TO: ALL CHEVROLET DEALERS Condition: Some of... Read More

1992 Corvette ZR-1: Service Bulletin: Lack of Wide Open Throttle Engine Underpower

Jul 24, 2014 1992 corvette, zr-1, corvette zr-1, wot, wide open throttle, under power, lt5 engine, abs, asr 0 0 1510 5/5 (1 Vote)

Subject: LACK OF WOT-LOW ENGINE POWER REVISED CABLE ADJUSTMENT PROC. Model and Year: 1992 CORVETTE ZR-1 WITH 5.7L ENGINE AND MANUAL TRANSMISSION Source: Chevrolet Product Emission Campaign Bulletin Number: 92-214A-7B - (07/01/1992) THIS... Read More

1994 - 1995 Corvette ZR-1: Characteristics of A.L. Dunn Cylinder Heads

Jul 24, 2014 1994 corvette, 1995 corvette, zr-1, corvette zr-1, a.l. dunn, heads, cylinder heads, characteristics, greg van deventer 0 0 1462 0/5 (0 Vote)

From Greg Van Deventer, Mercury Marine - October 18, 2000: "The A.L. Dunn cylinder heads have as cast intake and exhaust ports. All cylinder heads up to that point were from the same mold. The '90 - '92 cylinder heads were as cast, ... Read More

1994 - 1995 Corvette ZR-1: Wheel Touch-Up Paint

Jul 24, 2014 1994 corvette, 1995 corvette, zr-1, corvette zr-1, wheel, touch up, touch-up, paint 0 0 1236 0/5 (0 Vote)

The correct color code for the 1994 - 1995 Corvette ZR-1 5-spoke wheels is Dupont #C9201 or GM #WH9819. Read More

Technical Article: Synthetic Oil Use

Jul 15, 2014 tech article, technical article, synthetic oil, mobil 1, zr-1, corvette zr-1, c4 zr-1, lt1 0 0 1259 0/5 (0 Vote)

From Jim Ingle, GM Powertrain Engineer (this question was asked in terms of adding Mobil 1 to a ZR-1 after engine break-in):"There is probably more misunderstanding of lubricants and "old wive's tales" about them than any other automotive issue. A... Read More

1993 - 1994 Corvette: Service Bulletin: Intermittent ASR Service Light

Jul 30, 2014 1993 corvette, 1994 corvette, corvette zr-1, zr-1, rpo zr-1, lt5, lt5 engine, rpo lt5, service bulletin, intermittent, asr, anti-slip regulation, service light, 47-50-01, mem-cal 0 0 2957 3.5/5 (2 Votes)

Subject: INTERMITTENT ASR SERVICE LIGHT (REPLACE MEM-CAL)Model and Year: 1993-94 CHEVROLET CORVETTE WITH 5.7L ENGINE (VIN J - RPO LT5) AND MANUAL 6-SPEED (ML9) TRANSMISSIONSource: Chevrolet Service BulletinBulletin Number: 47-50-01CONDITION:SOME... Read More

1990 - 1995 Corvette ZR-1: Diagnosing Low Tire Pressure Warning System Codes

Jun 30, 2014 c4 corvette, zr-1, c4 zr-1, ltpws, low tire pressure warning system, codes, fault codes, system codes, diagnosis, diagnosing 0 0 2531 2/5 (1 Vote)

The following article appeared in the Spring 2014 issue of the NCRS Corvette Restorer, written by Mike Ingham and is used here with his permission: Adventures In LTPWS Land by Mike Ingham This story concerns the Low Tire Pressure Warning... Read More

2024 Corvette Z06: Service Bulletin: #N232413030: Service Update - Lack of Auto Park Function - (Mar 25, 2024)

Apr 2, 2024 2024 corvette, z06, 2024 z06, c8 z06, transmission, LT6 0 1 380 1/5 (1 Vote)

#N232413030: Service Update - Lack of Auto Park Function - (Mar 25, 2024) Subject: N232413030 — Lack of Auto Park Function Models: 2024 Chevrolet Corvette Release Date: March 2024 Revision: 00 ... Read More

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