Do we need to oil the chain on our hoist?

only comes with the hoist
try the web site and see if there is a pdf version down load
I have the hoist and the book so if you state exactly the problem I can copy the text for you

You need to take off the bumper and the door that covers engine access. You'll need a low boy engine hoist. Take out the radiator and push aside the AC condenser and oil cooler. Take off the fan blades from the watre pump pulley. Find a good place to hook up the chain on the hoist. Now go under the engine and remove the access cover on the bell housing. Take out the bolts that hold the torque converter to the flywheel. Now go after the bolts that hold the transmission to the engine. Put a floor jack under the transmission so it wont drop when you jack up the engine with the hoist. After you remove all the electrical wiring from the components on the engine remove the bolts on the motor mounts and raise the engine with the hoist . Pull the engine out while looking for anything that you didn't disconnect. Be sure the transmission doesn't drop when the engine separates from it.

no you dont need to remove engine. but you have to engine hoist or chain hoist support engine because you have to remove front engine mount to remove timing chain cover.

I assume your question is which way does it come out... remove the front grill, hood, headlights, radiator, ac condenser.... and everything else that looks like it's in the way of the engine coming out the front of the vehicle. Support the transmission from below with wooden blocks, remove the bolts connecting engine to transmission and using a proper engine hoist, slide the engine right out the front -- easiest with intake manifold removed first, short, tight chain so engine hoist is low down one engine.

3.2L & 3.5L Engines

1. Disconnect negative cable
   
2. Drain cooling system.
   
3. Raise vehicle on hoist.
   
4. Disconnect electrical connectors from engine oil and power steering pressure switches.
   
5. Disconnect radiator and heater hoses from thermostat housing.
   
6. Remove thermostat housing bolts.
   
7. Remove housing, thermostat, and gasket.
   

To install:

1. Position gasket on thermostat and housing.
   
2. Install thermostat housing, gasket and mounting bolts onto block. Tighten attaching bolts to 105 inch lbs. (12 Nm).
   
3. Install radiator hose.
   
4. Install bypass hose.
   
5. Connect electrical connectors from engine oil and power steering pressure switches.
   
6. Connect negative cable.
   
7. Fill cooling system.
   
8. Inspect for leaks.
   
9. Lower vehicle on hoist.
   

just left of the crankshaft pulley

1. Disconnect negative battery cable at battery.
2. Drain cooling system.
3. Raise vehicle on hoist.
4. Remove splash shield.
5. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
6. Remove thermostat housing mounting bolts, thermostat housing and thermostat .

To install:

1. Clean mating areas of timing chain cover and thermostat housing.
2. Install thermostat (spring side down) into recessed machined groove on housing assembly. Make sure rubber seal locating tab is positioned in the corresponding notch in the housing.
3. Position thermostat housing on timing chain cover.
4. Install two housing-to-timing chain cover bolts. Tighten bolts to 105 inch lbs. (12 Nm) torque.
5. Install lower radiator hose on thermostat housing.
6. Install splash shield.
7. Lower vehicle.
8. Fill cooling system.
9. Connect negative battery cable to battery.
10. Start and warm the engine. Check for leaks.

1. Disconnect negative battery cable at battery.
   
2. Drain cooling system.
   
3. Raise vehicle on hoist.
   
4. Remove splash shield.
   
5. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
   
6. Remove thermostat housing mounting bolts, thermostat housing and thermostat.
   

To install:

1. Clean mating areas of timing chain cover and thermostat housing.
   
2. Install thermostat (spring side down) into recessed machined groove on timing chain cover.
   
3. Position thermostat housing on timing chain cover.
   
4. Install two housing-to-timing chain cover bolts. Tighten bolts to 115 inch lbs. (13 Nm).
   

1. Rotate the hoist shaft counterclockwise until approximately 15 cm (6 in) of cable (1) is exposed.
2. While holding the latch pin (3), fully depress the latch button (2) and release the secondary latch from the hoist assembly. Some side-to-side and/or up-and-down movement may be necessary to disengage the latch mechanism.
3. Continue rotating the hoist shaft counterclockwise in order to lower the hoist the rest of the way.
4. If this does not release the secondary latch, the spare tire hoist will need to be replaced. See the following procedure.

Important: If the spare tire hoist has been fully raised without a spare tire in place, the secondary latch mechanism may have become engaged. If this has occurred the hoist will not lower and the following steps will need to be followed:

You shouldn't have to for head gaskets, makes it easier but not necessary.
For oil pan, you may have too. Depending on how much room there is between pan and crossmember and if pan is in tranny. Some cars the oil pan is 1/4" behind tranny but don't think that is the deal on your car.

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Actually, the problem sounds more like a blown head gasket (or head) dumping oil into the cylinders. That would explain why it loses power. If you are certain that you need the oil pump changed, you do have to hoist the whole engine out of the compartment. This is because the "front" bolts on the oil pan are directly under the timing chain cover, which can only be removed once the engine mount is taken off. My pump recently went out, and sans hoist I was relegated to using a mechanic to do the job - for a painful $1,000.

If the issue is the head gasket, however, it should be much easier. For that, you can put a jack under the crankcase, and take the engine mounts and timing chain cover out. From there, you should be able to easily disassemble the whole engine working from the top downward, without any trouble.