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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - Repair Instructions) >> Repair Instructions >> Vacuum Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
    WARNING:

    To avoid any vehicle damage, serious personal injury or death:

    • When major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.
    • When performing work in the engine compartment or under the vehicle, ensure that the hood is fully open, or opened to its secondary latch. When the hood is opened to the secondary latch, the vehicle will disable the remote start features from the key fob and OnStar mobile app. Failure to open the hood, or open the hood to the secondary latch while doing a repair in the engine compartment or under the vehicle can result in inadvertent vehicle starting which could result in personal injury or damage to a vehicle.
    WARNING:

    Refer to Eye Protection Warning .

  1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection (Dual Battery)Battery Negative Cable Disconnection and Connection (Single Battery) .
  2. Remove the vacuum pump belt. Refer to Vacuum Pump Belt Replacement .
    3. Fig 1: Tie Straps And Vacuum Boost Pipe Sleeve
    GM3269106Courtesy of GENERAL MOTORS COMPANY
  3. Cut the tie straps (2) off the vacuum boost pipe sleeve and remove the vacuum boost pipe sleeve (3) from the vacuum boost pipe.
  4. Remove the vacuum boost pipe retainer (1) from its bracket.
    5. Fig 2: Vacuum Boost Pipe
    GM3269113Courtesy of GENERAL MOTORS COMPANY
  5. Remove the vacuum boost pipe (1) from the vacuum pump and reposition it away from the pump. Refer to Plastic Collar Quick Connect Fitting Service .
  6. Remove the steering gear skid shield. Refer to Steering Gear Skid Shield Replacement .
    7. Fig 3: Engine Electrical Wiring Harness Retainers And Reposition Harness
    GM3269123Courtesy of GENERAL MOTORS COMPANY
  7. Remove the engine electrical wiring harness retainers (1) and reposition the harness (2) away from the vacuum pump.
  8. Remove Intermediate Steering Shaft Replacement .
    9. Fig 4: Vacuum Pump
    GM4009026Courtesy of GENERAL MOTORS COMPANY
  9. Remove Vacuum Pump Fastener (1) [4x] @Vacuum Pump (2).
    10. Fig 5: Vacuum Pump And Vacuum Pump Gasket
    GM3269125Courtesy of GENERAL MOTORS COMPANY
  10. Remove the vacuum pump (1) and the vacuum pump gasket (2) from the engine block.
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