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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - Repair Instructions >> Repair Instructions >> Vacuum Pump Replacement >> Installation Procedure

Installation Procedure

    NOTE:

    A new vacuum pump gasket should be installed when the vacuum pump is installed to prevent leaks.

    Fig 1: Vacuum Pump And Vacuum Pump Gasket
    GM3269125Courtesy of GENERAL MOTORS COMPANY
  1. Install the vacuum pump gasket (2) and vacuum pump (1) onto the engine block.
    2. Fig 2: Vacuum Pump
    GM4009026Courtesy of GENERAL MOTORS COMPANY
  2. Install Vacuum Pump Fastener (1) [4x] @Vacuum Pump (2) and tighten 25 N.m (18 lb ft)
  3. Install Intermediate Steering Shaft Replacement .
    4. Fig 3: Engine Electrical Wiring Harness Retainers And Reposition Harness
    GM3269123Courtesy of GENERAL MOTORS COMPANY
  4. Reposition the engine wiring harness (2) and install the wiring harness retainers (1).
  5. Install the steering gear skid shield. Refer to Steering Gear Skid Shield Replacement .
    6. Fig 4: Vacuum Boost Pipe
    GM3269113Courtesy of GENERAL MOTORS COMPANY
  6. Reposition and install the vacuum boost pipe (1) onto the vacuum pump. Refer to Plastic Collar Quick Connect Fitting Service .
  7. Install the vacuum boost pipe (1) into its retainer.
    8. Fig 5: Tie Straps And Vacuum Boost Pipe Sleeve
    GM3269106Courtesy of GENERAL MOTORS COMPANY
  8. Position the vacuum boost pipe sleeve (3) in place and install zip ties (2) to secure it to the vacuum boost pipe.
  9. Install the vacuum pump belt. Refer to Vacuum Pump Belt Replacement .
  10. Connect the battery ground cable to the battery. Refer to Battery Negative Cable Disconnection and Connection (Dual Battery)Battery Negative Cable Disconnection and Connection (Single Battery) .
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