1987 Chevrolet Blazer Service and Repair Manual

This factory service and repair manual for the 1987 Chevrolet Blazer covers a two-door sport utility built in Custom Deluxe and Silverado trim, and the engine bay is where its range really shows: a 5.0-liter 305-cubic-inch V8 and a 5.7-liter 350-cubic-inch V8, both naturally aspirated on gasoline, plus a 6.2-liter 379-cubic-inch naturally aspirated diesel V8. All three are overhead-valve designs, but the diesel brings its own fuel, lubrication and cooling requirements, and the manual keeps that material separate from the gasoline procedures.

Engines covered

• 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
• 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
• 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door sport utility

Trims covered

• Custom Deluxe
• Silverado

Known issues on the 1987 Blazer. Three recalls touch this truck, and all three arrive through parts fitted after it left the plant. Replacement combination lamps sold without amber side reflectors leave the vehicle poorly marked to other traffic. A replacement fuel filter can seal badly at its connection and weep fuel where an ignition source is waiting. And a batch of replacement oil filters can fail to seal, emptying the engine of oil and risking a fire. Owners logged 34 complaints, led by steering at 7, with power train and seat belts at 4 each.