Buick Encore Owners & Service Manuals

Buick Encore: Oil pan replacement

Special Tools

EN-49980 Guidance Pins

For equivalent regional tools, refer to Special Tools.

Removal Procedure

  1. Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Encore) , Front Wheelhouse Liner Replacement (Encore) .
  2. Remove the oil filter and drain the engine oil. Refer to Engine Oil and Oil Filter Replacement.
  3. Remove the front compartment front center insulator Refer to Front Compartment Front Center Insulator Replacement .
  4. Remove the front exhaust pipe. Refer to Exhaust Front Pipe Replacement (LUV) , Exhaust Front Pipe Replacement .
  5. Remove the catalytic converter. Refer to Catalytic Converter Replacement (LUV)
  6. If equipped with AWD, remove the transfer case. Refer to Transfer Case Replacement

Fig. 96: Automatic Transmission Converter Cover And Bolts
Fig. 96: Automatic Transmission Converter Cover And Bolts

NOTE: The intermediate shaft is shown removed for visual purposes only.

  1. If equipped with an automatic transmission, remove the oil pan to automatic transmission bolts (1, 3) and automatic transmission converter cover (2).

Fig. 97: Oil Pan To Automatic Transmission Bolts
Fig. 97: Oil Pan To Automatic Transmission Bolts

  1. Remove the oil pan to automatic transmission bolts (1) .

Fig. 98: Transmission-To-Oil Pan Bolts
Fig. 98: Transmission-To-Oil Pan Bolts

  1. If equipped with manual transmission, remove the 3 manual transmission to oil pan bolts (1).

Fig. 99: Oil Pan And Bolts
Fig. 99: Oil Pan And Bolts

  1. Remove the oil pan bolts (1) and oil pan.

Installation Procedure

  1. Clean the sealing surface of crankshaft bearing cap tie plate and the groove in the engine front cover from old gasket material, oil, dirt and grease.

Fig. 100: Oil Pan Guidance Pins
Fig. 100: Oil Pan Guidance Pins

  1. Install the 2 EN-49980 guidance pins (1) to the shown oil pan screw bores.

Fig. 101: Engine Front Cover, Oil Suction Gallery And Screw Bore
Fig. 101: Engine Front Cover, Oil Suction Gallery And Screw Bore

NOTE: The sealing bead should be applied close to the inner edge of the oil pan.

Take care that the oil suction gallery (4) will not get contaminated with sealing compound or dirt.

  1. Apply 2 mm (0.0787 in) thickness of sealing compound (3, 2, 1).

Fig. 102: Oil Pan And Bolts
Fig. 102: Oil Pan And Bolts

CAUTION: Refer to Fastener Caution

NOTE: The complete installation procedure of the oil pan should be done in 10 minutes.

  1. Loosely install the oil pan bolts (1) in all but the guidance pin locations.
  2. Remove the EN-49980 guidance pins and install the remaining oil pan bolts.
  3. Tighten the oil pan bolts to 10 (89 lb in).

Fig. 103: Transmission-To-Oil Pan Bolts
Fig. 103: Transmission-To-Oil Pan Bolts

  1. If equipped with manual transmission, install the 3 manual transmission to oil pan bolts (1) and tighten to 40 (30 lb ft).

Fig. 104: Automatic Transmission Converter Cover And Bolts
Fig. 104: Automatic Transmission Converter Cover And Bolts

  1. If equipped with an automatic transmission, install and the automatic transmission converter cover (2) and tighten the cover to automatic transmission bolt (1) to 40 N.m (30 lb ft) and automatic transmission bolt (3) to 60 (44 lb ft).
  2. If equipped with AWD, install the transfer case. Refer to Transfer Case Replacement .

Fig. 105: Oil Pan To Automatic Transmission Bolts
Fig. 105: Oil Pan To Automatic Transmission Bolts

  1. Install the oil pan to automatic transmission bolts (1), and tighten to 40 (30 lb ft).
  2.  Install a NEW oil filter and fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement.
  3. Install the catalytic converter. Refer to Catalytic Converter Replacement (LUV)
  4. Install the exhaust pipe. Refer to Exhaust Front Pipe Replacement (LUV) , Exhaust Front Pipe Replacement .
  5. Install the front compartment front center insulator Refer to Front Compartment Front Center Insulator Replacement .
  6. Install the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Encore) , Front Wheelhouse Liner Replacement (Encore) .

AUTOMATIC TRANSMISSION FLEX PLATE REPLACEMENT

Fig. 106: Automatic Transmission Flex Plate And Bolts
Fig. 106: Automatic Transmission Flex Plate And Bolts

Automatic Transmission Flex Plate Replacement

Automatic Transmission Flex Plate Replacement

Automatic Transmission Flex Plate Replacement

ENGINE FLYWHEEL REPLACEMENT

Fig. 107: Engine Flywheel And Fasteners
Fig. 107: Engine Flywheel And Fasteners

Engine Flywheel Replacement

Engine Flywheel Replacement

Engine Flywheel Replacement

CRANKSHAFT BALANCER REPLACEMENT

Special Tools

  • J-45059-A Torque Wrench
  • EN-49979 Crankshaft Shock Mount Retainer

For equivalent regional tools, refer to Special Tools.

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Encore) , Front Wheelhouse Liner Replacement (Encore) .
  3. Remove the drive belt. Refer to Drive Belt Replacement.
  4. Place collecting basin underneath.

Fig. 108: Bore And Mark
Fig. 108: Bore And Mark

NOTE: The crankshaft balancer can be incorrectly installed 180º from the required position. Be sure to note the location of the alignment hole on the crankshaft balancer prior to removing the crankshaft balancer from the engine.

  1. Rotate the engine clockwise until the bore (2) in the crankshaft balancer aligns with the mark (1) on the engine front cover.

Fig. 109: Crankshaft Components And Tools
Fig. 109: Crankshaft Components And Tools

  1. Install EN-49979 crankshaft shock mount retainer (1) to suitable tool (2).
  2. Loosen the crankshaft balancer bolt (4) while holding the crankshaft balancer (3).

Fig. 110: Crankshaft Balancer And Bolt
Fig. 110: Crankshaft Balancer And Bolt

  1. Remove and DISCARD the crankshaft balancer bolt (2).
  2. Remove the crankshaft balancer (1).

Installation Procedure

Fig. 111: Engine Oil Pump Rotor And Crankshaft
Fig. 111: Engine Oil Pump Rotor And Crankshaft

NOTE: The crankshaft balancer flange must fit to the hexagon of the oil pump rotor (2) and to the two-flats of the crankshaft (1). The TDC markings on crankshaft balancer and engine front cover must match.

  1. Install the crankshaft balancer carefully by pressing into position.

Fig. 112: Engine Front Cover And Crankshaft Balancer
Fig. 112: Engine Front Cover And Crankshaft Balancer

  1. Measure the distance (a) between the crankshaft balancer (2) and the mark on the engine front cover (1).

    The distance (a) should be 5.5 mm (0.21654 in).

NOTE: Never re-use the crankshaft balancer bolt.

  1. Install a NEW crankshaft balancer bolt.

Fig. 113: Crankshaft Components And Tools
Fig. 113: Crankshaft Components And Tools

CAUTION: Refer to Fastener Caution .

CAUTION: Refer to Torque-to-Yield Fastener Caution .

  1. Tighten the crankshaft balancer bolt (4) to 150 (111 lb ft) while holding the crankshaft balancer (3) with EN-49979 crankshaft shock mount retainer (1) and suitable tool (2). Use J-45059-A wrench.
  2. Tighten the crankshaft balancer bolt to an additional 60º.
  3. Install the drive belt. Refer to Drive Belt Replacement.
  4. Install front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement (Encore) , Front Wheelhouse Liner Replacement (Encore) .
  5. Lower the vehicle.
  6. Check and correct engine oil level.

CRANKSHAFT FRONT OIL SEAL REPLACEMENT

Special Tools

  • EN-960 Installer
  • EN-45000 Remover Oil seal

For equivalent regional tools, refer to Special Tools.

Removal Procedure

  1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.
  2. Place a drain pan underneath the front crankshaft seal area.

Fig. 114: Crankshaft Front Oil Seal And Remover
Fig. 114: Crankshaft Front Oil Seal And Remover

  1. Remove crankshaft front oil seal (2) from engine front cover. Use EN-45000 remover (1).

Installation Procedure

Fig. 115: Crankshaft Front Oil Seal And Installer
Fig. 115: Crankshaft Front Oil Seal And Installer

  1. Install NEW crankshaft front oil seal (1) to EN-960 installer (2).

Fig. 116: Crankshaft Front Oil Seal Installer And Engine Front Cover
Fig. 116: Crankshaft Front Oil Seal Installer And Engine Front Cover

  1. Install crankshaft front oil seal by means of EN-960 installer (1) to engine front cover (2).

Fig. 117: Engine Front Cover And Crankshaft Front Oil Seal
Fig. 117: Engine Front Cover And Crankshaft Front Oil Seal

  1. Ensure that crankshaft front oil seal (2) is flush with engine front cover (1).
  2. Install crankshaft balancer. Refer to Crankshaft Balancer Replacement.
  3. Remove the drain pan.
  4. Check and correct engine oil level.

CRANKSHAFT REAR OIL SEAL REPLACEMENT

Special Tools

EN-658 Rear Main Seal Installer

For equivalent regional tools, refer to Special Tools

Removal Procedure

  1. If equipped with automatic transmission, remove the flex plate. Refer to Automatic Transmission Flex Plate Replacement.
  2. If equipped with a manual transmission, remove the flywheel. Refer to Engine Flywheel Replacement

Fig. 118: Rear Crankshaft Oil Seal
Fig. 118: Rear Crankshaft Oil Seal

NOTE: Do not damage the outside diameter of the crankshaft or chamber with any tool.

  1. Using a flat-bladed tool, remove the rear crankshaft oil seal (1).

Installation Procedure

Fig. 119: Crankshaft Rear Oil Seal And Installer
Fig. 119: Crankshaft Rear Oil Seal And Installer

  1. Install the crankshaft rear oil seal (1) with EN-658 installer (2).

Fig. 120: Crankshaft Real Oil Seal Installer
Fig. 120: Crankshaft Real Oil Seal Installer

  1. Using the EN-658 installer (2) , install a NEW crankshaft real oil seal (1).
  2. If equipped with a manual transmission, install the flywheel. Refer to Engine Flywheel Replacement.
  3. If equipped with automatic transmission, install the flex plate. Refer to Automatic Transmission Flex Plate Replacement.

POSITIVE CRANKCASE VENTILATION HOSE/PIPE/TUBE REPLACEMENT

Removal Procedure

  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .

Fig. 121: Positive Crankcase Ventilation Pipe Retainer Clips And Clamp
Fig. 121: Positive Crankcase Ventilation Pipe Retainer Clips And Clamp

  1. Open the 2 positive crankcase ventilation pipe retainer clips (2) and (3).

NOTE: Move retainer clamp (1) in direction of the arrow.

  1. Remove the positive crankcase ventilation pipe from the intake manifold.

Fig. 122: Positive Crankcase Ventilation Pipe, Charger Air Bypass Valve Pipe And Clamp
Fig. 122: Positive Crankcase Ventilation Pipe, Charger Air Bypass Valve Pipe And Clamp

  1. Loosen the charger air bypass valve pipe clamp (3).
  2. Remove the charger air bypass valve pipe from turbocharger.
  3. Remove the charger air bypass valve pipe (2) from turbo charger wastegate regulator solenoid valve.
  4. Disconnect the positive crankcase ventilation pipe from turbocharger.
  5. Unclip and remove the positive crankcase ventilation pipe assembly (1) from the camshaft cover retainer clips.

Installation Procedure

Fig. 123: Positive Crankcase Ventilation Pipe, Charger Air Bypass Valve Pipe And Clamp
Fig. 123: Positive Crankcase Ventilation Pipe, Charger Air Bypass Valve Pipe And Clamp 

  1. Install the positive crankcase ventilation pipe assembly (1) to the camshaft cover retainer clips.
  2. Connect the positive crankcase ventilation pipe to turbocharger.
  3. Install the charger air bypass valve pipe (2) to turbo charger wastegate regulator solenoid valve.
  4. Install the charger air bypass valve pipe to turbocharger.
  5. Fasten the charger air bypass valve pipe clamp (3).

Fig. 124: Positive Crankcase Ventilation Pipe Retainer Clips And Clamp
Fig. 124: Positive Crankcase Ventilation Pipe Retainer Clips And Clamp

  1. Install the positive crankcase ventilation pipe to the intake manifold and fix with retainer clamp (1).
  2. Clip in the positive crankcase ventilation pipe to the 2 retainer clips (2) and (3).
  3. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .

ENGINE OIL HEATER REPLACEMENT

Fig. 125: Engine Oil Heater And Bolt
Fig. 125: Engine Oil Heater And Bolt

Engine Oil Heater Replacement

Engine Oil Heater Replacement

Engine Oil Heater Replacement

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