2002 Chevrolet Express / GMC Savana 4.3L Service Manual

2002 Chevrolet Express and GMC Savana 4.3L Engine Unit Repair Documentation

• Covers 1996–2002 Chevrolet Express and GMC Savana vans equipped with the 4.3L V6 engine, including L35 and LU3 variants.
• Original OEM publication from General Motors Corp., documenting engine unit repair procedures.
• Contains 94 exploded-view diagrams, 3 detailed fastener tightening specification tables, and comprehensive mechanical clearance charts.
• File is available as a direct download the moment payment clears.
• Page spreads stay legible when printed at original size.
• Indexed PDF search covers every chapter and appendix.
• OCR text layer lets you jump to a torque spec by keyword.
• This unit repair manual is the primary reference used by technicians for 4.3L engine component teardowns, offering specific torque values, part locations, and tool requirements for major assembly tasks.

Engine Mechanical Teardown and Assembly

This 100-page GM technical publication provides a structured look at the 4.3L V6 engine mechanical systems for 1996–2002 Chevrolet Express and GMC Savana models. The content begins with extensive fastener tightening specifications, covering torque values for critical components including cylinder heads, main bearings, intake manifolds, and oil pumps. It segments the engine architecture into logical sections, detailing internal components from the crankshaft and balance shaft to the valve train and fuel induction system. Each section relies on clear exploded-view diagrams to identify part relationships and required hardware for proper assembly.

Specification and Reference Data

This manual provides depth regarding internal wear limits and dimensional tolerances to support precise engine refurbishment. Key specifications such as bore and stroke measurements, compression ratios, and firing orders are clearly documented for the V6 engine line. Cylinder head bolt torque is documented in a multi-stage sequence, with final-stage angles specified in the engine assembly data. Valve clearance for the intake is listed at 0.11–0.20 mm in the cylinder head specification table. Connecting rod bearing clearance for service is documented at 0.025–0.063 mm. The crankshaft journal diameter for journal #4 is specified at 62.179–62.203 mm. For how factory workshop documentation is structured, refer to the provided indexing. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official 100-page OEM unit repair manual provides comprehensive mechanical disassembly and assembly specifications for the 1996–2002 Chevrolet Express and GMC Savana 4.3L V6 engine series.

Document Reference: Courtesy of GENERAL MOTORS CORP.