GM Service Manual Online
For 1990-2009 cars only

Turbocharger Coolant Feed Pipe Replacement LNF

Removal Procedure


    Object Number: 1825533  Size: SH
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Drain the cooling system. Refer to Cooling System Draining and Filling .
  3. Reposition the radiator surge tank hose clamp (1) at the turbocharger coolant feed pipe fitting.
  4. Remove the radiator surge tank hose from the turbocharger coolant feed pipe fitting and reposition out of the way.

  5. Object Number: 1750413  Size: SH
  6. Remove the charge air bypass valve solenoid tube from the turbocharger coolant feed pipe clips (4).

  7. Object Number: 1750401  Size: SH
  8. Remove the turbocharger coolant feed pipe bolt (1) at the turbocharger.
  9. Remove the turbocharger coolant feed pipe fitting (2) from the cylinder head.
  10. Remove the turbocharger coolant feed pipe bracket bolt (3) from the cylinder head.
  11. Remove the turbocharger coolant feed pipe clips from the camshaft cover and remove the turbocharger coolant feed pipe from the vehicle.
  12. Remove the two christmas tree type retainers.
  13. Remove the gaskets from both banjo fittings on the turbocharger coolant feed pipe.

Installation Procedure


    Object Number: 1750401  Size: SH
  1. Install NEW gaskets to both banjo fittings on the turbocharger coolant feed pipe.
  2. Install the two christmas tree type retainers.
  3. Position the turbocharger coolant feed pipe to the engine and install the clips to the camshaft cover.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the turbocharger coolant feed pipe fitting (2) to the cylinder head.
  6. Tighten
    Tighten the fitting to 35 N·m (26 lb ft).

  7. Install the turbocharger coolant feed pipe bolt (1) at the turbocharger.
  8. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).

  9. Install the coolant feed pipe bracket bolt (3) to the cylinder head.
  10. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1750413  Size: SH
  11. Install the charge air bypass valve solenoid tube to the turbocharger coolant feed pipe clips (4).

  12. Object Number: 1825533  Size: SH
  13. Position and install the radiator surge tank hose to the turbocharger coolant feed pipe fitting.
  14. Position the radiator surge tank hose clamp (1) at the turbocharger coolant feed pipe fitting.
  15. Fill the cooling system. Refer to Cooling System Draining and Filling .
  16. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .