Section 6A4 · Pages 613–646 (34 pages)
5.0L and 5.7L V8
From the 1991 GMC Light Duty Truck Service Manual (Suburban, R/V 3500, P)
On-vehicle service for the small-block V8 in its two displacements, 5.0L (305 cu. in.) and 5.7L (350 cu. in.): 90-degree overhead-valve engines with cast-iron block and heads, five main bearings with thrust at the rear and a chain-driven camshaft. Procedures cover the rocker arm cover, rocker arms and pushrods, valve adjustment, valve stem seals and springs, intake manifold, lifters, rocker studs, exhaust manifold and cylinder head, then the damper and front seal, front cover, oil pan and pump, rear main seal and retainer, camshaft lobe lift and camshaft, pistons and rods, oil filter bypass valve, main bearings, crankshaft, flywheel, engine mountings and engine replacement.
Read this section free, starting at page 613What this section covers
- 5.0L and 5.7L description and lubrication
- Rocker arms, pushrods and valve adjustment
- Valve stem seals, springs, lifters and rocker studs
- Intake and exhaust manifolds, cylinder heads
- Torsional damper, front cover, oil pan and oil pump
- Rear main seal and retainer, camshaft
- Pistons, main bearings and crankshaft
- Engine mountings and replacement, specifications and tools
- Year
- 1991
- Make
- GMC
- Vehicle
- Light Duty Trucks, P Forward Control, R/V Trucks, Trucks
- Type
- Service Manual
- Models
- Suburban & Utility, R/V 3500, P30/3500
- Publication
- X-9132
- Pages
- 1,593
What’s inside
Service manual
- 0AGeneral Informationpp. 15–44
- 0BMaintenance and Lubricationpp. 45–96
- 1AHeating and Ventilationpp. 97–112
- 1BAir Conditioningpp. 113–178
- 2AFrame and Bumperspp. 179–196
- 2BSheet Metal and Fiberglasspp. 197–224
- 3AFront End Alignmentpp. 225–232
- 3B1Power Steeringpp. 233–264
- 3B3Steering Linkagepp. 265–278
- 3CFront Suspension and Axlepp. 279–338
- 3DRear Suspensionpp. 339–348
- 3EWheels and Tirespp. 349–366
- 3F1Steering Column: Standardpp. 367–388
- 3F2Steering Column: Tiltpp. 389–416
- 4APropeller Shaftpp. 417–434
- 4B1Rear Axlepp. 435–462
- 4CFront Driving Axlepp. 463–470
- 5AHydraulic Brakespp. 471–494
- 5A1Hydraulic Brake Booster Systemspp. 495–504
- 5A2Hydraulic Foundation Brakespp. 505–520
- 5A3Rear Wheel Antilock Brake Systempp. 521–548
- 5CParking Brakespp. 549–562
- 6AEngine, Driveability and Diagnosispp. 563–582
- 6A34.3 Liter V6pp. 583–612
- 6A45.0L and 5.7L V8pp. 613–646
- 6A57.4 Liter V8pp. 647–676
- 6A66.2L Dieselpp. 677–710
- 6B1Engine Coolingpp. 711–768
- 6CFuel Systempp. 769–786
- 6C2Diesel Fuel Injectionpp. 787–812
- 6D1Batterypp. 813–822
- 6D2Cranking Systempp. 823–834
- 6D3Charging Systempp. 835–846
- 6D4Ignition Systempp. 847–864
- 6D5Engine Block Heaterspp. 865–870
- 6D6Diesel Glow Plug Electrical Systempp. 871–878
- 6D7Engine Wiringpp. 879–896
- 6E2Diesel Emissions: 6.2L Diesel Enginepp. 897–966
- 6FExhaustpp. 967–982
- 6HVacuum Pumpspp. 983–988
- 7AAutomatic Transmissionpp. 989–994
- 7A14L60 Automatic Transmissionpp. 995–1076
- 7A24L80E Automatic Transmissionpp. 1077–1162
- 7A4Electronic Transmission Controlpp. 1163–1258
- 7BManual Transmissionpp. 1259–1266
- 7CClutchpp. 1267–1282
- 7DTransfer Casepp. 1283–1296
- 8ACab Electricalpp. 1297–1320
- 8BLighting Systemspp. 1321–1378
- 8CInstrument Panel and Gagespp. 1379–1396
- 8DChassis Electricalpp. 1397–1416
- 8EWindshield Wiper/Washer Systempp. 1417–1422
- 9Accessoriespp. 1423–1468
- 10A1Doorspp. 1469–1502
- 10A2Seatspp. 1503–1528
- 10A3Glasspp. 1529–1536
- 10A4Interior Trimpp. 1537–1552
- 10A5End Gatepp. 1553–1570
- 10BCab and Body Maintenancepp. 1571–1593







