This factory service and repair manual for the 1991 GMC V2500 Suburban documents the three-quarter-ton four-door sport utility in a single Base listing, with either the 6.2L overhead-valve V8 diesel or the 5.7L overhead-valve gasoline V8 under the hood. One trim keeps the book focused on mechanicals, and the mechanicals are what a truck this old needs: engine and driveline procedures for both power plants, four-wheel-drive and brake service, and the published specifications, torque values, wiring diagrams and diagnostics that go with them.
Engines covered
- 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
- Base
Known issues on the 1991 V2500 Suburban. The federal record for this year is clean, with no recalls and no owner complaints logged with NHTSA. That is a good starting point for a used purchase but not a maintenance plan, and the components that determine whether one of these trucks is worth keeping — the front axle and transfer case, the brake hydraulics, the injection system on the diesel — all have their own sections here, with procedures, published specifications, torque values and diagnostic sequences.
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
