How to remove oil pan on 1990 cadillac deville

SOURCE: REPLACING OIL PAN

hi no you dont have to remove the oil engine frim the car.just jack the car up and suport it.

SOURCE: How do I remove 1990 Cadillac Deville's oil pan?

The engine mounts must be removced and lift the engine upward with a hoist to remove the oil pan

Duane Wong

• 6826 Answers
• Posted on Nov 05, 2010

SOURCE: How do I remove the

Oil Pan REMOVAL & INSTALLATION

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Drain the crankcase.
3. Remove or disconnect the following:
   • Negative battery cable
   • Oil level indicator harness connector, if equipped
   • Exhaust Y-pipe, if needed
   • Transaxle assembly from the vehicle.
   • Oil pan bolts and the oil pan
   To install: NOTE: The oil pan gasket is reusable unless it is damaged. Do not remove the gasket from the oil pan groove unless gasket replacement is required.
   
4. Thoroughly clean the inside of the oil pan and the cylinder block contact surface. If the oil pan gasket is being reused, be careful not to damage it. Do not expose the gasket to cleaning solvents.
5. If a new gasket is being installed, start the gasket into the oil pan groove and work the gasket into the groove in both directions. Once the gasket is exposed to oil, it will expand and no longer stay in the groove without wrinkles. If this condition exists, replace the gasket.
6. Install or connect the following:
   • Oil pan. Torque the bolts, in sequence, to 89 inch lbs. (10 Nm).
   • Oil level indicator connector, if removed
   • Transaxle assembly, if removed
   • Y-pipe, if removed
   • Flywheel cover, if removed
   • Oil pan drain plug. Torque it to 15 ft. lbs. (20 Nm).
   • Negative battery cable
7. Refill the crankcase.
8. Run the engine and check for leaks. Fig. 1: Oil pan bolt torque sequence
   

SOURCE: i cannot slide out/remove oil bottom pan of my

What you have there is the oil pump pick up tube. It does indeed have a small screen on the bottom end.

To get the pan out, you can either disconnect motor mounts and raise engine up, or try to access the bolts holding the pick up tube to the bottom of the oil pump.

If there is sufficient space between the pan and the bottom of the block, I'd try to remove the pick up tube if I were you.

Be sure to thoroughly clean the gasket surface on the mating flange of the pick up tube and the oil pump.

A air leak at this point, after re-installation would be a really bad day for you.

The pump would be unable to pull enough (if, in fact, any) oil from the pan to properly lubricate the engine.

Sounds like you reasonably well understand what you're doing, so I won't belabor the point about making sure the gasket surface is cleaned.

Good luck!

SOURCE: How do you remove the oil pan on a 1991 cadillac DeVille?

You may have to drop one end of the oil pan down enough for you to put your arm in and unbolt the oil pump. The oil pump hanging down in the pan won't allow you to pull the pan out until the pump is unbolted.