Contents Section: Mechanical All sections

Engine Removal - 6-cyl GMC Pickup R2500

Mechanical ~137 words

4.8L

Note. Additional steps may be necessary depending on body builder.

  1. Disconnect negative battery cable. Remove air cleaner and drain cooling system. Disconnect accelerator cable and detent cable (automatic trans.) from throttle lever. Disconnect wiring harness at firewall.
  2. Remove radiator hoses from radiator and heater hoses from engine. Remove radiator, fan and water pump pulley. Disconnect fuel line from fuel pump. Disconnect vacuum and emission hoses. Remove hood. Raise vehicle.
  3. Remove starter, flywheel or converter inspection cover, and exhaust pipe from manifold. If equipped with automatic trans- mission, remove converter-to-flex plate bolts. Attach engine hoist and remove weight from engine mount bolts. Remove engine mount bolts.
  4. Remove front engine mounting through bolts. Remove bellhousing retaining bolts and support transmission with chain. Lower vehicle and attach engine hoist. Remove engine.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Bellhousing-to-Engine35 (47)
Flex Plate-to-Converter35 (47)
Front Mount Through Bolt75 (102)
Rear Mount-to-Crossmember36 (49)
Rear Mount-to-Transmission50 (68)

TORQUE SPECIFICATIONS