1996 GMC Jimmy w/automatic transmission

You will need an engine lift remove engine mount bolts lift engine high enough to remove pan,or remove transmission

4WD To Remove:

1. Remove or disconnect the following:
   • Negative battery cable
   • Oil level indicator
   • Front differential assembly
   • Starter
   • Transmission cover
   • Oil pan drain plug and drain the engine oil into a suitable container
   • Remote oil filter pipe adapter
   • Remote oil filter hose clip bolt on oil pan
   • Starter wire harness bracket stud
   • Transmission oil cooler pipes (if equipped)
   • Access plugs for oil pan rear nuts
   • Transmission to oil pan bolts
   • Oil pan nuts and bolts
     
     NOTE: The low oil level sensor is not reusable.
     
   • Remove and discard the engine oil level sensor (if applicable)
     
     
   • The oil pan
   • The oil pan gasket
2. Discard the oil pan gasket.
3. Clean all sealing surfaces on the engine and the oil pan.

To Install:
Note: Whenever the transmission and the engine oil pan are removed from the engine at the same time install the transmission before the oil pan. This is to allow for the proper oil pan alignment. Failure to achieve the correct oil pan alignment can result in transmission failure.

1. Apply a 0.197 inch (5 mm) wide and 1.0 inch (25 mm) long bead of adhesive GM P/N 12346141 (Canadian P/N 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.
   
   
   
   
2. Apply a 0.197 inch (5 mm) wide and 1.0 inch (25 mm) long bead of adhesive GM P/N 12346141 (Canadian P/N 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. Note: 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. Note: The oil pan alignment must always be flush or forward no more than 0.011 inch (0.3mm) from the rear face of the engine block.
   
4. Install or connect the following:
   • The oil pan onto the engine block
     1. Press the oil pan gasket into the grooves of the engine front cover and crankshaft rear oil seal housing
     2. Slide the oil pan back against a suitable straight edge
   • The oil pan bolts and nuts, but do not tighten
5. 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
     1. If the clearance exceeds 0.011 inch 0.3mm) at any of the 3 oil pan-to-transmission housing measurement points (A), then repeat the step until the oil pan-to-transmission housing clearance is within the specification
     2. The oil pan must always be forward of the rear face of the engine block
   
   
   
6. Tighten the oil pan bolts and nuts in sequence
   • Torque to: 18 ft lb (25 Nm).
7. Measure the clearance between the 3 oil pan-to-transmission housing measurement points in order to ensure proper alignment.
8. Install or connect the following:
   • A new oil pan drain plug seal (O-ring) onto the oil pan drain plug
   • Oil pan drain plug into the oil pan
     1. Torque to: 18 ft lb (25 Nm)
     NOTE: The low oil level sensor is not reusable.
     
     
     
   • New low oil level sensor
     1. Torque to: 115 in lb (13 Nm)
   • Transmission to oil pan bolts.
     1. Torque to: 35 ft lb (47 Nm)
   • Access plugs for the oil pan rear nuts
   • Starter wire harness bracket stud
   • Transmission oil cooler pipes (if equipped)
   • Remote oil filter pipe adapter
   • Oil filter hose clip bolt to the oil pan
   • Transmission cover and bolts.
   • Starter motor
   • Front differential assembly
   • Oil level indicator
9. Fill the engine with oil.
10. Connect the negative battery cable.

Hello,

Here is a detailed summary on the procedure of how to replace the intake manifold gasket on a 1996 gmc jimmy;
REMOVING THE UPPER INTAKE MANIFOLD(PLENUM)
STEP 1 Disconnect Battery (may not be absolutely necessary, but a good practice to avoid shorting a positive wire to ground).


STEP 2 Remove serpentine belt.

STEP 3 Drain the coolant.

STEP 4 Remove air cleaner ducting and disconnect wires.

STEP 5 Disconnect throttle linkage and bracket.

STEP 6 Disconnect cruise control cable.

STEP 7 Remove brake booster vacuum hose at manifold.

STEP 8 Remove PCV hose.

STEP 9 Remove ignition coil and bracket.

STEP 1O Remove purge solenoid and bracket.

STEP 11 Relieve fuel pressure at test port.

STEP 12 Remove fuel lines and bracket.

STEP 13 Remove upper intake manifold.

REMOVING THE LOWER INTAKE MANIFOLD
STEP 1 Remove the distributor and label the spark plug wires.

STEP 2 Remove heater hoses and bypass hose.

STEP 3 Remove upper radiator hose.


STEP 4 Remove EGR valve?

STEP 5 Remove sensors and bracket on right side.

STEP 6 Remove EGR tube, clamp and bolt.

STEP 7 Remove PCV valve (and replace).

STEP 8 Unbolt A/C compressor and move it aside.

STEP 9 Loosen compressor bracket and slide forward, but do not remove it.

STEP 10 Remove alternator bracket bolt (or remove alternator and set aside)

STEP 11 Unplug all vacuum lines from intake manifold.


STEP 12 Unplug all electrical connectors from manifold.

STEP 13 Take note of the intake manifold bolts and mark the location of the bolts.


STEP 14 Remove intake manifold bolts, and manifold.

STEP 15 Clean mating surfaces

THE MAIN INSTALLATION
STEP1 Set the new gaskets in place and apply silicone to flat areas on front and rear of engine block.

STEP2 Apply thread locking compound to manifold bolts.

STEP 3 Install the manifold and tighten bolts to 35 ft-lbs, in proper sequence.

STEP4 Install the distributor.

STEP5 Install the upper intake manifold.



The remaining installation procedures are basically the reverse of removal.


Have a nice day.

I didn't read about running the engine at all during the transmission fluid change. --- Removal & Installation 4L60E/4L65E To Remove:

1. Raise and safely support the vehicle.
2. Place a drain pan under the transmission.
3. If equipped with a drain plug, drain the transmission fluid.
4. If necessary, remove the bolts and position aside the range selector cable bracket for clearance while lowering the pan. It is not necessary to remove the cable from the lever or bracket.
5. Remove the catalytic converter.
6. Remove the oil pan bolts from the front and sides of the pan only.
7. Loosen the rear oil pan mounting bolts about 4 turns.
8. Lightly tap the oil pan with a rubber mallet in order to loosen the pan and allow the fluid to drain.
9. Remove the remaining oil pan bolts.
10. Remove the oil pan and the gasket.
11. Remove the filter by twisting and pulling on it.
12. Remove and discard the filter seal. The filter seal may be stuck in the pump; if necessary, carefully use pliers or another suitable tool to remove the seal.
13. Clean the transmission and the oil pan sealing surfaces with solvent, and air dry. You must remove all traces of the old gasket material.

To Install:

1. Coat the new filter seal with transmission fluid.
2. Install the new filter seal into the transmission case. Tap the seal into place using a suitable size socket.
3. Install the new filter.
4. Install the oil pan and new gasket. Tighten the bolts alternately and evenly to 97 lb in (11 Nm).
5. Install the catalytic converter.
6. If previously removed, install the range selector cable bracket and bolts. Tighten the bolts to 18 lb ft (25 Nm).
7. Apply a small amount of sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent to the threads of the oil pan drain plug, if equipped.
8. Install the oil pan drain plug, if equipped. Tighten the plug to 13 lb ft (18 Nm).
9. Lower the vehicle.
10. Fill the transmission to the proper level with DEXRON® III transmission fluid.
11. Check the COLD fluid level reading for initial fill only.
12. Inspect the oil pan gasket for leaks.

4L80E/4L85E To Remove:

1. Raise and suitably support the vehicle.
2. Place a drain pan under the transmission oil pan. Drain the transmission fluid and install the plug. Tighten the drain plug to 13 lb ft (18 Nm).
3. Support the transmission with a transmission jack.
4. Remove the transmission crossmember.
5. Disconnect the range selector cable end from the transmission range selector lever ball stud. NOTE: It is not necessary to remove the selector cable from the bracket.
   
6. Remove the transmission range selector cable bracket. Reposition the bracket and cable.
7. Remove the oil pan bolts. NOTE: The transmission oil pan gasket is reusable. Replace as needed.
   
8. Remove the oil pan and gasket.
9. Remove the magnet from the bottom of the pan, if necessary.
10. Remove the oil filter and neck seal.

To Install:

1. Clean the transmission and the oil pan sealing surfaces with solvent.
2. Install the filter neck seal and filter.
3. Install the oil pan gasket to the pan.
4. Install the magnet into the bottom of the pan, if necessary.
5. Install the oil pan and bolts. Tighten the oil pan bolts to 18 lb ft (24 Nm).
6. Install the transmission range selector cable bracket. Tighten the bolts to 18 lb ft (25 Nm).
7. Connect the range selector cable end to the transmission range selector lever ball stud.
8. Install the transmission crossmember. Tighten the fasteners to 70 lb ft (95 Nm).
9. Install the transmission mount nuts. Tighten the nuts to 30 lb ft (40 Nm).
10. Remove the transmission jack.
11. Lower the vehicle.
12. Fill the transmission to the proper level with DEXRON® III transmission fluid.

2wd Models

1. Disconnect the negative battery cable. Drain the engine oil.
   
2. Remove the oil dipstick.
   
3. If necessary remove the exhaust pipe crossover.
   
4. If equipped with automatic transmission, remove the converter housing pan and the transmission oil cooler line retainer from the bracket.
   
5. On 1996-98 models, remove the oil filter and if equipped, the oil filter adapter.
   
6. If necessary, remove the starter brace and bolt and swing the starter aside.
   
7. Remove the strut rods, if equipped.
   
8. Remove the oil pan and discard the gaskets.
   

To install:

1. Apply a suitable sealant such as GM part number 12346192 or its equivalent to the front cover-to-block joint and to the rear crankshaft seal-to-block joint. Apply the sealant about 1 inch (25mm) in both directions from each of the four corners.
   
2. Clean all gasket surfaces and use new gaskets to assemble.
   
3. Install new gasket and seals.
   
4. Install the oil pan.
   
5. On 1988-95 models, tighten the pan bolts to 100 inch lbs. (11 Nm). Tighten the pan nuts to 17 ft. lbs. (23 Nm).
   
6. On 1996-98 models, tighten the oil pan nuts and bolts to 18 ft. lbs. (25 Nm).
   
7. Install the strut rods, if equipped.
   
8. If removed, install starter, starter brace and bolt.
   
9. If equipped, install the oil filter adapter.
   
10. If removed, install the oil filter.
    
11. If equipped with automatic transmission, install the converter housing pan and the transmission oil cooler line retainer to the bracket.
    
12. Install the exhaust pipe crossover.
    
13. Install the oil dipstick.
    
14. Fill the engine with oil and check for leaks.
    

The transmission is not sealed in the v8 I looked up. It's bolted together. Fluid Pan Removal & Installation To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section
2. Raise and support the vehicle
3. Place a drain pan under the transmission fluid pan
4. Remove or disconnect the following:
   • Drain plug and drain the fluid
   • Shifter cable bracket NOTE: The transmission fluid pan gasket is reusable, clean and inspect for damage; if not damaged, the gasket should be reused.
     
   • Fluid pan and gasket
   • Transmission fluid filter
   • Clean and inspect the transmission fluid pan and magnet
   • Converter housing access plug
   • Converter drain plug

To Install:
NOTE: A new converter drain plug must be used to prevent leakage.

1. Install or connect the following:
   • Install the converter drain plug. Torque to 89 in-lbs (10 Nm)
   • Install the converter housing access plug
2. Lubricate the seals and install the transmission fluid filter. Torque the bolts to 89 in-lbs (10 Nm)
3. Install the oil pan magnet in the transmission fluid pan NOTE: The transmission fluid pan gasket is reusable, clean and inspect for damage; if not damaged, the gasket should be reused.
   
4. Install the transmission fluid pan and gasket and loosely install the screws.
5. Using a crisscross sequence, torque the screws to 8 ft-lbs (11 Nm)
6. Install the shifter cable bracket. Torque bolts to 18 ft-lbs (25 Nm)
7. Install the drain plug. Torque to 19 ft-lbs (26 Nm) NOTE: It will be necessary to hold the drain plug (larger plug) with a wrench when removing the fluid level indicator plug.
   NOTE: Use 3/16 inch Allen key to remove the fluid level indicator plug. Remove the fluid level indicator plug.
   
8. Verify the transmission fluid level

when changing the filter? maybe 4, at overhaul maybe 10-11?

If you mean the bracket for the shift cable.What you do is pry it slightly over far enough to remove the pan.Hope this helps.Good luck.

Remove the driveshaft, or both if 4x4. Remove the starter and if automatic remove the inspection cover by the starter and unbolt the torque converter. Don,t lose these bolts, they are special order only from the dealer. Unhook your linkage and wiring. Put a jack under the trans with a block of wood between it and the pan. Unbolt the transmission crossmember from the frame and the trans from the engine.Remove the crossmember and slide the transmission back and lower the jack. Hope this helps.

Most of these take a T-30 torx socket coming down from the top on the drivers side of the transmission. I believe there is another bracket in the way that makes it kind of tough but it can be done. Sometimes a 1" or 3" extension helps. If you feel up there you will feel the bolt heads. They are round and feel like they have a hole in the top of them.