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HOMESERVICE MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (ENGINE MECHANICAL - 4.3L - SERVICE, REPAIR AND DIAGNOSTICS)REPAIR INSTRUCTIONSENGINE REPLACEMENTINSTALLATION PROCEDURE
2001 Chevrolet Suburban C1500

Installation Procedure

2001 Chevrolet Suburban C1500SECTION Installation Procedure
WARNING: This page is about a different car, the 2001 GMC Sierra and 2001 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Right Side (Left Side Similar) Engine Mount To Engine Mount Bracket Bolts
    GM310259Courtesy of GENERAL MOTORS COMPANY
  1. Install the engine to the vehicle.
  2. Refer to FASTENER NOTICE in Cautions and Notices.

    Install the engine mount to frame bracket bolts.

    Tighten 

    Tighten the bolts to 65 N.m (50 lb ft).

    3. Fig 2: Engine Lift Brackets J 41427
    GM33636Courtesy of GENERAL MOTORS COMPANY
  3. Remove the J 41427  and the lifting device.
  4. Apply thread lock GM P/N 12345382 or equivalent to the threads of the lower intake manifold bolts.
  5. Install the intake manifold bolts.

    Tighten 

    1. Tighten the bolts the first pass to 3 N.m (27 lb in).
    2. Tighten the bolts the second pass to 12 N.m (106 lb in).
    3. Tighten the bolts the final pass to 15 N.m (11 lb ft).
  6. Loosely install one transmission to engine bolt.
  7. Remove the support jack from under the transmission.
    8. Fig 3: Spark Plug Wire Harness Retainer From Exhaust Gas Recirculation (EGR) Valve Inlet Pipe
    GM172982Courtesy of GENERAL MOTORS COMPANY
  8. Install the EGR valve inlet pipe to the intake and the exhaust manifold.

    Tighten 

    1. Tighten the EGR valve inlet pipe intake nut to 25 N.m (18 lb ft).
    2. Tighten the EGR valve inlet pipe exhaust nut to 30 N.m (22 lb ft).
    3. Tighten the EGR valve inlet pipe clamp bolt to 25 N.m (18 lb ft).
  9. Install the water outlet. Refer to Engine Coolant Thermostat Replacement (4.3 L Engine) in Engine Cooling.
    10. Fig 4: View Of Power Steering Pump Bracket
    GM340090Courtesy of GENERAL MOTORS COMPANY
  10. Slide the power steering pump mounting bracket with the power steering pump and the A/C compressor on the stud.
  11. Position the power steering pump rear bracket on the studs.
  12. Install the power steering pump mounting bracket three bolts and the nut.
  13. Install the nut for the power steering pump rear bracket to the front of the engine.

    Tighten 

    Tighten the power steering pump mounting bracket and the power steering pump rear bracket bolts and the nuts to 41 N.m (30 lb ft).

  14. Connect the fuel pipes. Refer to Fuel Line Replacement - Engine in Engine Controls - 4.3L.
  15. Connect the hose to the EVAP purge canister solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement in Engine Controls - 4.3L.
    16. Fig 5: View Of Vacuum Brake Booster Hose
    GM346148Courtesy of GENERAL MOTORS COMPANY
  16. Connect the vacuum brake booster hose to engine and the vacuum brake booster.
  17. Install the distributor cap. Refer to Distributor Replacement in Engine Controls - 4.3L.
  18. Install both heater hoses to the engine and the cowl. Refer to Heater Inlet Hose Replacement (L35) and Heater Outlet Hose Replacement (L35) in Heating Ventilation and Air Conditioning.
    19. Fig 6: AIR Pipe Assembly
    GM332026Courtesy of GENERAL MOTORS COMPANY
  19. Install the AIR pipe assembly with new gaskets to the right exhaust manifold, if equipped.
  20. Install the AIR pipe nuts and bracket bolt.

    Tighten 

    1. Tighten the AIR nuts to 25 N.m (18 lb ft).
    2. Tighten the AIR bracket bolt to 10 N.m (8 lb ft).
  21. Connect the AIR pipe assembly to the AIR pump.
    22. Fig 7: AIR Pipe
    GM332032Courtesy of GENERAL MOTORS COMPANY
  22. Install the AIR pipe assembly with new gaskets to the left exhaust manifold, if equipped.
  23. Install the AIR pipe nuts and bracket bolt.

    Tighten 

    1. Tighten the AIR nuts to 25 N.m (18 lb ft).
    2. Tighten the AIR bracket bolt to 10 N.m (89 lb in).
    24. Fig 8: Secondary Air Injection (AIR) Crossover Pipe
    GM398868Courtesy of GENERAL MOTORS COMPANY
  24. Install the AIR crossover pipe to the AIR pipe assemblies.
  25. Position the engine wiring harness.
    26. Fig 9: EGR Valve Connector, A/C Compressor Clutch Connector And A/C Pressure Switch Connector
    GM491821Courtesy of GENERAL MOTORS COMPANY
  26. Connect the following electrical connectors:
    • The A/C pressure switch (4), if equipped
    • The A/C compressor clutch (1), if equipped
    • The exhaust gas recirculation (EGR) valve (2)
    • The generator battery positive cable (3)
    27. Fig 10: Throttle Position (TP) sensor Connector, Idle Air Control (IAC) Motor Connector And Fuel Meter Body Assembly Connector
    GM491817Courtesy of GENERAL MOTORS COMPANY
  27. Connect the following electrical connectors:
    • The fuel meter body assembly (3)
    • The idle air control (IAC) motor (2)
    • The throttle position (TP) sensor (1)
    • The engine coolant temperature (ECT) sensor (4)
    28. Fig 11: Manifold Absolute Pressure (MAP) Sensor Connector And EVAP Canister Purge Solenoid Valve Connector
    GM491816Courtesy of GENERAL MOTORS COMPANY
  28. Connect the following electrical connectors:
    • The EVAP canister purge solenoid valve (1)
    • The manifold absolute pressure (MAP) sensor (2)
    • The ignition control module (ICM) (4)
    • The ignition coil (3)
    29. Fig 12: Locating Knock Sensor & Engine Oil Pressure Sensor
    GM491825Courtesy of GENERAL MOTORS COMPANY
  29. Connect the following electrical connectors:
    • The engine oil pressure gauge sensor (3)
    • The distributor (2)
    • The knock sensor (KS) (1)
    30. Fig 13: Ground Strap
    GM310256Courtesy of GENERAL MOTORS COMPANY
  30. Install the bolt holding the ground strap and the ground wire to the rear of the left cylinder head.

    Tighten 

    Tighten the ground strap and ground wire bolt to 16 N.m (12 lb ft).

    31. Fig 14: Engine Wiring Harness Retainer Nuts
    GM310243Courtesy of GENERAL MOTORS COMPANY
  31. Position the engine wiring harness bracket on the EVAP canister purge solenoid valve stud and install the nut.
  32. Install the stud holding the wire harness bracket to the rear of the right cylinder head.

    Tighten 

    • Tighten the nut on the EVAP solenoid to 9 N.m (80 lb in).
    • Tighten the stud at rear of the cylinder head to 25 N.m (18 lb ft).
  33. Install the nut holding the ground wire on the stud at the rear of the right cylinder head.

    Tighten 

    Tighten the ground wire nut to 16 N.m (12 lb ft).

    34. Fig 15: Battery Positive Cable Junction Block Bracket
    GM394403Courtesy of GENERAL MOTORS COMPANY
  34. Position the battery positive and negative cables.

    Do not connect the negative battery cable to the battery.

  35. Install the battery positive cable junction block bracket and bolt to the power steering pump mounting bracket.

    Tighten 

    Tighten the junction block bracket bolt to 25 N.m (18 lb ft).

    36. Fig 16: View Of Engine Wiring Harness Bracket & Nuts
    GM310241Courtesy of GENERAL MOTORS COMPANY
  36. Install the bolt holding the engine wiring harness bracket to battery positive cable junction block bracket.
  37. Install the engine wiring harness bracket on the intake manifold studs and install the nuts.

    Tighten 

    • Tighten the wiring harness bracket nuts to 12 N.m (106 lb in).
    • Tighten the wiring harness bracket bolt to 9 N.m (80 lb ft).
  38. Connect the A/C hoses to the A/C compressor and the accumulator. Refer to Air Conditioning Compressor Hose Replacement (L35 w/ Harrison) in Heating Ventilation and Air Conditioning.
    39. Fig 17: View Of Accelerator Control Cable Bracket
    GM398030Courtesy of GENERAL MOTORS COMPANY
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.