Oil Pan: Removal
All vehicles
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
- Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
- Remove the oil level indicator.
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NOTE: This step does not apply if the engine front cover is removed.
Loosen the 4 upper bellhousing-to-engine bolts 5 mm (0.19 in).
- If equipped, remove the bolts and the skid plate.
- Remove the bolt for the transmission cooler tube bracket from the radiator support.
- Remove the drain plug and drain the engine oil.
- Remove and discard the engine oil filter.
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NOTE: This step does not apply if the engine front cover is removed.
Remove the nut and the transmission cooler line bracket from the engine front cover stud bolt.
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NOTE: This step does not apply if the engine front cover is removed.
Detach the generator wiring harness from the engine front cover.
- Remove the starter motor. For additional information, refer to STARTING SYSTEM .
- Detach the starter motor wiring harness retainer from the oil pan.
- Remove the 4 nuts and bolts and the crossmember.
Four Wheel Drive (4X4) vehicles
- Position a suitable hydraulic jack under the front axle. Securely strap the jack to the axle.
- Remove the upper front axle carrier mounting bushing bolt.
- Remove the axle shaft housing carrier bushing bolt.
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NOTE: Front driveshaft removed for clarity only.
Remove the lower front axle carrier mounting bushing bolt.
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NOTE: Use care when lowering the front axle housing, or the vacuum lines to the axle solenoid may become disconnected or damaged.
Lower the axle to allow clearance for the oil pan to be removed.
All vehicles
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NOTE: This step does not apply if the engine front cover is removed.
Loosen the engine-to-bellhousing bolt above the starter motor 5 mm (0.19 in).
- Remove the oil pan-to-bellhousing bolt from below the starter motor.
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NOTE: This step does not apply if the engine front cover is removed.
Loosen the 2 LH bellhousing-to-engine bolts 5 mm (0.19 in).
- Remove the 2 LH bellhousing-to-oil pan bolts.
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NOTE: This step does not apply if the engine front cover is removed.
Loosen the 2 transmission crossmember nuts.
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NOTE: This step does not apply if the engine front cover is removed.
Slide the transmission rearward 5 mm (0.19 in).
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NOTE: This step does not apply if the engine front cover is removed.
Remove the 4 lower engine front cover bolts.
- Remove the 16 oil pan bolts.
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NOTE: LH rear shown, RH front similar.
Using a suitable pry tool, locate the 2 pry pads at the LH and RH sides of the oil pan and pry the oil pan loose and remove.
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NOTE: The generator wiring harness retainer is being removed for clearance to install the oil pan.
Detach the generator wiring harness retainer from the engine block.
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NOTE: Only use a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) to clean the oil pan. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean. These tools cause scratches and gouges that make leak paths.
Clean the engine oil pan using a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) in a suitable tool turning at the recommended speed of 15, 000 RPM.
- Thoroughly wash the oil pan to remove any foreign material, including any abrasive particles created during the cleaning process.
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NOTE: Do not use wire brushes, power abrasive discs or 3M™ Roloc® Bristle Disk (2-in white, part number 07528) to clean the cylinder block and engine front cover sealing surfaces. These tools cause scratches and gouges that make leak paths. They also cause contamination that causes premature engine failure. Remove all traces of the gasket.
Clean the sealing surfaces of the cylinder block and engine front cover in the following sequence.
- Remove any large deposits of silicone or gasket material.
- Apply silicone gasket remover and allow to set for several minutes.
- Remove the silicone gasket remover. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
- Apply metal surface prep to remove any remaining traces of oil and to prepare the surfaces to bond. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.