2012 Chevrolet Express 1500 Service and Repair Manual

This factory service and repair manual for the 2012 Chevrolet Express 1500 documents two engines that ask for different fuel strategies: the 5.3L V8 of 325 cubic inches, built for flex-fuel, and the naturally aspirated 4.3L V6 of 262 on gasoline. Both are overhead-valve V-engines. The vans come as three-door and four-door cargo and passenger bodies in Base, LS and LT trim, and the wiring diagrams, torque values and diagnostic charts are organized so each configuration can be traced on its own.

Engines covered

• 5.3L V8 (325 cu in) — OHV, naturally aspirated, flex-fuel
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 3-door standard cargo van
• 4-door standard passenger van
• 3-door standard passenger van
• 4-door standard cargo van

Trims covered

• Base
• LS
• LT

Known issues on the 2012 Express 1500. The complaint record for this year holds fifteen entries, the largest groups being two each on the electrical system, on fuel and propulsion, and on the steering. That is a thin, even spread rather than a pattern. It still maps onto the parts of the book a technician reaches for most: circuit diagrams with connector and ground locations, fuel delivery and injection specifications with the pressure figures to test against, and steering gear, linkage and pump procedures given with the torque values that keep the front end where it belongs.