Oil Pan Replacing for 8.1L, 4.8L, 5.3L, 6.0L & 6.2L Engines?

The detail mentioned here cover following car models:----
Escalade, Suburban 1500 & 2500, Tahoe, Yukon, Yukon XL 1500 & 2500 (2006-2007), Yukon Denali and Yukon Denali XL (2005-2006).
Its GMC, Chevrolet and Cadillac Models Oil pan removal procedure.


Oil Pan
REMOVAL & INSTALLATION
Procedure is as follows:----

4.8L, 5.3L, 6.0L & 6.2L Engines

NOTE

The original oil pan gasket is retained and aligned to the oil pan by rivets. When installing a new gasket, it is not necessary to install new rivets. DO NOT reuse the oil pan gasket. When installing the oil pan, install a NEW oil pan gasket.

1. Remove or disconnect the following: 
   
   
   Negative battery cable

   Front differential if equipped with four wheel drive

   Under body shield from the vehicle

   Oil pan shield

   On 2007 models, unbolt steering rack and hang downwards 
   
   
   

   Fig. Oil pan shield-4.8L, 5.3L, 6.0L and 6.2L engines

   
   
   

   Fig. Cross brace-4.8L, 5.3L, 6.0L and 6.2L engines
   
   
   
   
   Cross brace if equipped

   Engine oil and filter

   Transmission-to-oil pan bolts

   Oil level sensor electrical connector

   Two front wiring harness retainer bolts

   Engine wiring harness retainer bolts from the engine oil pan

   Engine oil cooler pipe-to-oil pan bolt

   Transmission oil cooler pipe retainer and the bolt from the oil pan

   Closeout covers and bolts (one each side of engine)

   Engine mount bolts each side

   Oil pan

To install:

NOTE

The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission bell housing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan must NEVER protrude beyond the engine block and transmission bell housing plane.

Fig. Apply sealant at these points at the front of the block-4.8L, 5.3L, 6.0L and 6.2L engines

Fig. Apply sealant at these points at the rear of the block-4.8L, 5.3L, 6.0L and 6.2L engines

1. Apply a 0.20 in. (5mm) bead of sealant GM P/N 12378190 or equivalent 0.8 in. (20mm) long to the engine block. Apply the sealant directly onto the tabs of the front cover gasket that protrudes into the oil pan surface.
   
   NOTE

   Be sure to align the oil gallery passages in the oil pan and engine block properly with the oil pan gasket.
2. Pre-assemble the oil pan gasket to the pan. Install the oil pan bolts to the pan through the gasket.
3. Install or connect the following:
   
   
   Oil pan gasket

   Oil pan

   Oil pan bolts, finger-tight. Do not over tighten.

   Two lower bell housing bolts to position the oil pan correctly
4. Snug the lower bell housing bolt finger-tight. Do not over tighten. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 18 ft. lbs. (25 Nm). Tighten the oil pan-to-rear cover bolts to 106 inch lbs. (12 Nm). Tighten the bell housing bolts to 37 ft. lbs. (50 Nm).
   
   
   Transmission oil cooler pipe retainer and the bolt to the oil pan

   Engine oil cooler pipe-to-oil pan bolt and tighten to 89 inch lbs. (10 Nm)

   Engine wiring harness retainer bolts to the engine oil pan

   Oil level sensor electrical connector

   Transmission-to-oil pan bolts and tighten to 41 ft. lbs. (55 Nm)

   Front differential, if equipped with four wheel drive

   Underbody shield
5. Lower the vehicle. Fill the engine with oil and install the engine oil filter.
6. Connect the negative battery cable.

8.1L Engine

1. Disconnect the negative battery cable and drain the engine oil.
2. Remove or disconnect the following:
   
   NOTE

   You can reuse the oil pan gasket, if it is not damaged
   
   
   
   
   Front differential, if equipped with 4WD

   Starter motor

   Oil pan skid plate bolts and plate

   Crossbar bolt(s) and crossbar

   Oil level dipstick

   Oil level sensor electrical connector

   Engine harness clip from the oil pan

   Battery cable channel bolt

   Battery cable channel and reposition

   Oil pan bolts, oil pan and gasket

To install:

NOTE

You must install the oil pan within 5 minutes of applying the sealer.

1. Before servicing the vehicle, refer to the Precautions section.
2. Apply sealant to the sides of the front and rear crankshaft bearing caps on the left and right sides.
3. Install or connect the following:
   
   
   Oil pan gasket into the oil pan groove

   Oil pan and bolts
4. Tighten the oil pan bolts, in sequence, as follows:
   1. 1st pass: 89 inch lbs. (10 Nm).
   2. 2nd pass: 18 ft. lbs. (25 Nm).
      
      
      

      

      Fig. Oil pan bolt tightening sequence-8.1L engines
5. Install or connect the following:
   
   
   Battery cable channel and bolt. Tighten to 80 inch lbs. (9 Nm).

   Oil level sensor and tighten to 15 ft. lbs. (20 Nm)

   Engine harness clip

   Oil level sensor connector

   Oil level dipstick

   Crossbar and bolt(s). Tighten to 74 ft. lbs. (100 Nm).

   Skid plate. Tighten the bolts to 15 ft. lbs. (20 Nm).

   Starter motor

   Front differential

   Negative battery cable
6. Fill the crankcase with oil.

These details will help.

Thanks.           

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html