1988 Chevrolet V20 Suburban Service and Repair Manual
This factory service and repair manual for the 1988 Chevrolet V20 Suburban lists three naturally aspirated V8s — a 454-cubic-inch 7.4L and a 350-cubic-inch 5.7L on gasoline, and a 379-cubic-inch 6.2L on diesel — under one four-door sport utility body in Scottsdale and Silverado trim. The spread from one gasoline V8 to a much larger one and then to a diesel means three sets of tune-up figures, three sets of torque values and three fuel systems to diagnose, kept separate throughout.
Engines covered
- 7.4L V8 (454 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
- 4-door sport utility
Trims covered
- Scottsdale
- Silverado
Known issues on the 1988 V20 Suburban. The federal record for this model year is clean, with no recalls issued and no owner complaints logged. The manual therefore reads as a straight repair reference: engine overhaul and specification data for all three V8s, transmission, transfer case and axle service, brake and steering repair with their adjustment and torque figures, suspension and frame work, and the wiring diagrams and diagnostic charts covering the charging, starting, lighting and instrument circuits.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHI
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING N
