How do you remove the crossover pipe? 2000 cadillac seville.looks like their is only 1 big bolt is that correct? I'm trying to remove the oil pan and need to get the pipe out of the way.

Have to remove the bolt from the motor mount on right side and loosen the bolts on the left side motor mount, jack engine up on right side until you get enough clearance to slide pan out, hopefully your exhaust system will not get in the way to where you have to remove that also.

unscrew all of the bolts

Remove exhaust crossover pipe and oil qty level sensor, Once you undo bolts if you find that it wont come off that means this model has bolts that cant be accessed without removing powertrain cradle.

DeVille, Eldorado, Seville 1999-2005

• REMOVAL & INSTALLATION

Cylinder Head

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Removal & Installation

Left Side

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   Negative battery cable Exhaust manifold Alternator Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Power steering return hose retaining bolt from the cylinder head 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket.
   
5. Clean the head mating surfaces.

To install:

Fig. Left cylinder head bolt torque sequence-4.6L engine

1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
2. Torque the M11 bolts in sequence as follows:
   1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees
   2. Step 2: Turn an additional 60 degrees
   3. Step 3: Turn an additional 60 degrees (total 190 degrees)
   
   
3. Torque the M6 bolts to 106 inch lbs. (12 Nm)
4. Install or connect the following:
   
   Power steering return hose retaining bolt to the cylinder head and tighten to 37 ft. lbs. (50 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
   
5. Change the oil and filter.
6. Fill the cooling system.

Right Side

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   Negative battery cable Exhaust manifold Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Electrical connector from the Engine Coolant Temperature (ECT) sensor Nut attaching the coil cassette ground wire to the cylinder head Bolt attaching the exhaust crossover pipe to the cylinder head Bolt attaching the right transaxle mount bracket to the cylinder head Bolt attaching the rear transaxle brace to the transaxle Nuts attaching the rear transaxle brace to the cylinder head Rear transaxle brace 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket
   
5. Clean the head mating surfaces.

To install:

Fig. Right cylinder head bolt torque sequence- 4.6L engine

1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
2. Torque the M11 bolts in sequence as follows:
   1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees.
   2. Step 2: Turn an additional 60 degrees.
   3. Step 3: Turn an additional 60 degrees (total 190 degrees).
   
   
3. Torque the M6 bolts to 106 inch lbs. (12 Nm).
4. Install or connect the following:
   
   Rear transaxle brace over the studs located at the rear of the right cylinder head Nuts attaching the rear transaxle brace to the cylinder head, loosely Bolts attaching the rear transaxle braces to the transaxle and tighten to 37 ft. lbs. (50 Nm) Nuts attaching the rear transaxle brace to the cylinder head and tighten 37 ft. lbs. (50 Nm) Electrical connector to the ECT sensor Bolt attaching the exhaust crossover pipe to the cylinder head and tighten to 18 ft. lbs. (25 Nm) Nut attaching the coil cassette ground wire to the cylinder head and tighten to 13 ft. lbs. (17 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
   
5. Change the oil and filter.
6. Fill the cooling system.

Big job.

Service Information

2006 Cadillac DTS ' DTS VIN K Service Manual ' Document ID: 636855 Oil Pan Removal

1. Rotate the engine so that the oil pan is facing up.
2. Remove the oil pan drain plug.




3. Remove the oil pan bolts.




4. Remove the oil pan from the lower crankcase oil distribution manifold plate.




5. Remove and discard the oil pan gasket.




6. Remove the oil level sensor (1).

I worked on a 1999 Deville and to remove the oil pan wasn't to bad to change. All I had to do was Jack up the car and support it.Also remove the negative battery terminal.Drain the oil then remove the torque converter cover bolts and then the oil pan bolts and remove the oil pan.On some model Cadillacs there is also an exhaust cross under pipe that also has to be removed.Be sure not to over tighten the oil pan bolts there real hard to get out if you break one.Your going to have to find out how tight they should be because they all very depending on the vehicle.Most all of your auto parts stores have this information.

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
   

1. Disconnect battery negative cable.
2. Remove air cleaner.
3. Remove upper fail shroud (V8)
4. Raise vehicle and drain oil pan.
5. Disconnect A.I.R. hose at converter pipe (V8)
6. Disconnect A.I.R. pipe at exhaust manifold (V8)
7. Remove exhaust crossover pipe at manifold and converter.
8. Remove starter.
9. Remove flywheel cover.
10. Disconnect transmission oil cooler lines at oil pan.
11. Remove engine mount 'through' bolts on V8. Loosen right bolt and remove left on V6.
12. Remove oil pan bolts and lower oil pan. Check that forward crankshaft throw and/or counter balance weight are not extending downward so to block oil pan removal. Turn crankshaft, necessary, to put throw on horizontal plane.
13. Raise engine.
14. Remove oil pan.

Installation

1. Clean sealing surfaces on cylinder case and pan.
2. Check oil pan gasket for damage; replace if necessary.
3. Apply a small amount of 1052751 or equivalent to front and rear corners of oil pan.

NOTICE: Only a small amount of sealant is required. Excessive amounts of sealant may cause a problem with proper sealing of oil pan.

1. Install retaining bolts and torque to 9 N.m (80 lb. in.).
2. Raise engine, if necessary.
3. Lower engine, install mount 'through' bolts and torque to 50 lb. ft. (65 N.m).
4. Install torque converter cover.
5. Install starter.
6. Install exhaust crossover pipe at manifold and converter.
7. Lower vehicle.
8. Install fan shroud.
9. Install air cleaner.
10. Fill crankcase with oil.
11. Connect battery negative cable, start engine and check for leaks.

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.
    

No big job Really. Just locate your Drain Plug for the Oil. Thepan is right there, Remove the Bolts around the Pan and Remove. You will lose all of your oil so, Have something there to catch it all. Clean it all around the Edges of the Block where the Pan mounts with Degreaser and Make sure that you Scrape the Old Gasket off of Both the Block and the Pan. Run a Thin Bead of Blue ATV Silicone around the Pan Edge, Lay the Gasket on top of this Silicone. Put another Thin line on top of the Gasket and Reinstall. This Silicone is High Temp Silicone and will Seal Very Well. Make sure to put oil Back in the Motor! Please Rate my Response, I need all the Help That I can Get! Thanks!