SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 9 (ENGINE MECHANICAL - 4.3L UNIT REPAIR)REPAIR INSTRUCTIONSOIL PAN INSTALLATION
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F

Oil Pan Installation

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Oil Pan Installation
WARNING: This page is about a different variant/trim than selected.
  1. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N United States 12346141, GM P/N Canada 10953433, or equivalent, to both the right and left sides of the engine front cover to engine block junction at the oil pan sealing surfaces.
    Fig 1: Applying Adhesive To Both Right & Left Sides Of Engine Front Cover To Engine Block Junction At Oil Pan Sealing Surfaces
    G02503077Courtesy of GENERAL MOTORS CORP.
  2. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N United States 12346141, GM P/N Canada 10953433, or equivalent, to both the right and left sides of the crankshaft rear oil seal housing to engine block junction at the oil pan sealing surfaces.
    Fig 2: Applying Adhesive To Both The Right & Left Sides Of Crankshaft Rear Oil Seal Housing To Engine Block Junction At Oil Pan Sealing Surfaces
    G02503078Courtesy of GENERAL MOTORS CORP.

    Important:  Always install a NEW oil pan gasket.

    The oil pan gasket and oil pan must be installed and the fasteners tightened while the adhesive is still wet to the touch.

  3. Install the NEW oil pan gasket into the groove in the oil pan.
    Fig 3: Oil Pan Gasket
    G02503079Courtesy of GENERAL MOTORS CORP.

    Important:  The oil pan alignment must always be flush or forward no more than 0.3 mm (0.011 in) from the rear face of the engine block.

  4. Install the oil pan onto the engine block. Press the oil pan gasket into the grooves of the engine front cover and crankshaft rear oil seal housing.
  5. Slide the oil pan back against a suitable straight edge.
  6. Install the oil pan bolts and nuts, but do not tighten.
  7. Measure the pan-to-transmission housing clearance using a feeler gage and a straight edge. Use a feeler gage to check the clearance between the oil pan-to-transmission housing measurement points. If the clearance exceeds 0.3 mm (0.011 in) at any of the 3 oil pan-to-transmission housing measurement points (1), then repeat the step until the oil pan-to-transmission housing clearance is within the specification. The oil pan must always be forward of the rear face of the engine block.
    Fig 4: Measuring Pan-To-Transmission Housing Clearance Using A Feeler Gage & Straight Edge
    G02503081Courtesy of GENERAL MOTORS CORP.
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.