SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 881 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSENGINE COOLANT CROSSOVER PIPE REPLACEMENT (8.1L ENGINE)INSTALLATION PROCEDURE
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2001 GMC Yukon XL, 2001 GMC Yukon, 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, and 2001 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Water Outlet, Bolts & Thermostat
    GM635643Courtesy of GENERAL MOTORS COMPANY
  1. Refer to FASTENER NOTICE in Cautions and Notices.

    If replacing the water crossover install the following:

    1. Thermostat (3)
    2. Water outlet (1)
    3. Water outlet bolts (2)

      Tighten 

      Tighten the water outlet bolts to 30 N.m (22 lb ft).

    2. Fig 2: View Of Engine Coolant Crossover & Gasket
    GM470698Courtesy of GENERAL MOTORS COMPANY
  2. Install NEW water crossover gaskets.
  3. Install the water crossover.
  4. Install the water crossover bolts.

    Tighten 

    Tighten the water crossover bolts to 50 N.m (37 lb ft).

    5. Fig 3: View Of Generator Bracket, Bolts, Nuts & Stud
    GM751458Courtesy of GENERAL MOTORS COMPANY
  5. Install the generator bracket.
  6. Install the generator bracket stud.

    Tighten 

    Tighten the generator bracket stud to 20 N.m (15 lb ft).

  7. Install the generator bracket bolts and nut.

    Tighten 

    Tighten the generator bracket bolts and nut to 50 N.m (37 lb ft).

  8. Install the power steering pump. Refer to Power Steering Pump Replacement (4.8 L, 5.3 L and 6.0 L Engines) , Power Steering Pump Replacement (8.1L) , Power Steering Pump Replacement (4.3L) , Power Steering Pump Replacement (6.6L Diesel) in Power Steering System.
  9. Install the generator. Refer to Generator Replacement (4.3 L Engine) , Generator Replacement (4.8L, 5.3L, and 6.0L Engines) , Generator Replacement (8.1L Engine) , Generator Replacement (6.6 L Engine) in Engine Electrical.
    10. Fig 4: Thermostat Bypass Hose & Clamps
    GM470692Courtesy of GENERAL MOTORS COMPANY
  10. Install the bypass hose.
  11. Position the bypass hose clamps at the water crossover and water pump.
    12. Fig 5: View Of Heater Inlet Hose & Water Crossover
    GM750694Courtesy of GENERAL MOTORS COMPANY
  12. Install the heater inlet hose to the water crossover.
  13. Position the heater inlet hose clamp at the water crossover.
    14. Fig 6: View Of Inlet Hose Clamp & Water Crossover
    GM751425Courtesy of GENERAL MOTORS COMPANY
  14. Install the inlet hose to the water crossover.
  15. Position the inlet hose clamp at the water crossover.
  16. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Accessory in Engine Mechanical - 8.1 L.
  17. Fill the cooling system. Refer to Cooling System Draining and Filling .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.