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Home >> GMC >> 1997 >> C3500 HD 7.4 J, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine Mechanical - 4.3L V6 - VIN W & ,X) >> Removal & Installation >> Engine >> Removal (Blazer, Bravada, Jimmy, Sonoma & Pickup)

Removal (Blazer, Bravada, Jimmy, Sonoma & Pickup)

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 1997 Oldsmobile Bravada, 1997 GMC Sonoma, 1997 GMC Savana, 1997 GMC Safari, and 1997 GMC Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Notice: If the engine is damaged internally and a new engine assembly is installed in the vehicle, ensure that all foreign material is flushed out of the cooling system. You must also flush out the oil cooler system. Failure to rid the oil cooler system of debris can result in engine damage.
NOTE: Tool Required: J-41427 Universal Lift Bracket.
  1. Release fuel system pressure. See FUEL PRESSURE RELEASE . Raise the vehicle.
  2. Remove the underbody shield.
  3. Remove the braces from the engine to the transmission.
  4. Disconnect the exhaust pipe from the exhaust manifolds.
  5. Disconnect the slave cylinder or hydraulic line if the cylinder is mounted inside the bellhousing.
  6. Disconnect the fuel line clamp at the bellhousing.
  7. Remove the starter.
  8. Disconnect the torque convertor bolts from the flywheel.
  9. Disconnect the front propeller shaft (4WD only).
  10. Remove the oil filter.
  11. Remove the transmission to engine bolts.
    • Remove all the transmission to engine bolts except for the upper left bolt.
    • For an automatic transmission refer to Transmission Replacement in Automatic Transmission.
    • For a manual transmission refer to Transmission Replacement in Manual Transmission.
  12. Remove the front engine mount through bolts. See Fig 1.
  13. Remove the rear engine mount crossbar nut and washer. See Fig 2.
  14. Lower the vehicle.
  15. Remove the battery ground cable at the engine.
  16. Remove the water pump pulley.
  17. Remove the air conditioning compressor and bracket.
  18. Remove the radiator.
  19. Disconnect the power steering hoses from the power steering gear and cap them.
  20. Disconnect the heater hoses from the engine.
  21. Disconnect the following items:
    • The wiring harnesses
    • The vacuum lines
    • The throttle cable
    • The fuel lines
  22. Remove the distributor.
  23. Support the transmission with a jack and remove the final transmission to engine bolt.
  24. Install J-41427 to the right rear and the left front of the intake manifold. Tighten Retaining bolts to 15 N.m (11 lb. ft.). see Fig 3.
  25. Use an engine lifting device and remove the engine from the vehicle.
Fig 1: Removing & Installing Engine Mount Through Bolt
G00382496
Fig 2: Removing & Installing Crossbar Mount
G00382497
Fig 3: Installing J-41427 To Intake Manifold
G00382498
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