Changing Starter on 1998 Cadillac car models?

GM Cadillac Deville/Fleetwood/ELD/Seville 1990-1998 Starter replacing procedure.

In this chapter the details to replace starter and starter testing procedure is provided.

The detailed provided for 3.0L engine, 4.6L engine,  4.5L and 4.9L engine.

The procedure is as follows:----

REMOVAL & INSTALLATION

3.0L Engine

1. Disconnect the negative battery cable.
2. Raise and safely support the vehicle securely on jackstands.
3. Remove the terminal nuts, washers, and electrical leads from the starter motor.
4. Remove the passenger side catalytic converter.
5. Remove the passenger side engine mount nuts, and lower the vehicle.
6. Disconnect the resonance chamber-to-throttle body ducts.
   1. Detach the electrical connector for the Mass Air Flow (MAF) and the Intake Air Temperature (IAT) sensors.
   2. Disconnect the resonance chamber air intake hose from the air cleaner housing and MAF sensor.
   3. Remove the (IAC) inlet hose and the intake plenum air inlet hoses.
   4. Detach the electrical connector from the switchover valve and the remaining vacuum connections.
7. Install the engine support fixture J28467-A with adapters J28467-450 or equivalents and raise the passenger side of the engine.

NOTE

Passenger side of the engine must be raised approximately 1.5 inches (38 mm).

8. Raise and safely support the vehicle securely on jackstands.
9. Remove the engine mount from the engine mount bracket and cradle.
10. Remove the engine mount bracket bolts and reposition the bracket.
11. Remove the starter motor from the vehicle.

To install:

12. Install the starter motor to the vehicle and tighten the bolts to 44 ft. lbs. (60 Nm).
13. Position the engine mount bracket and install the bolts. Tighten to 30 ft. lbs. (40 Nm).
14. Install the engine mount to the engine mount bracket and cradle. Partially lower the vehicle.
15. Lower the engine. Have an assistant guide the engine mount into place while lowering the engine. The engine mount locator tab must engage the slot in the cradle.
16. Reinstall the resonance chamber-to-throttle body ducts.
17. Raise the vehicle.
18. Install the passenger side engine mount nuts. Tighten the upper nut to 30 ft. lbs. (40 Nm). Tighten the lower nut to 41 ft. lbs. (55 Nm).
19. Install the passenger side catalytic converter.
20. Plug in the electrical leads, install the washers, and terminal nuts to the starter motor. Tighten the battery cable terminal nut to 115 inch lbs. (13 Nm). And the solenoid terminal nut to 35 inch lbs. (4 Nm).
21. Lower the vehicle.
22. Connect the negative battery cable.

4.6L Engine

1. Disconnect the negative battery cable.
2. Disconnect the positive battery cable.

NOTE

In order to get to the starter assembly the intake manifold must be removed. Refer to the procedure for removing the intake manifold.

3. Reposition the front bank spark plug wires.
4. Remove the air intake duct from the throttle body.
5. Detach the electrical connectors for the intake manifold, Throttle Position (TP) sensor, and Idle Speed Control (ISC) motor, Evaporative Emission (EVAP) Control solenoid and Cruise Control Servo.
6. Disconnect the vacuum hoses at the brake vacuum booster, fuel pipe bundle and to the body.
7. Disconnect the PCV hoses at the intake manifold.
8. Unhook the accelerator cable at the throttle body and position it out of the way.
9. Relieve the fuel system pressure. Disconnect the fuel pipe quick connects at the fuel pipe bundle in the engine compartment.
10. Remove the EVAP solenoid bracket at the rear (or right) cam cover.
11. Reposition the transaxle range control cable away from the cruise control servo.
12. Disconnect the coolant hoses at the throttle body and to the coolant reservoir and plug the hoses. Wrap a shop towel around the hoses when disconnecting to avoid spillage.
13. Remove the four intake manifold bolts and lift the intake manifold with the throttle body out of the engine compartment.
14. Unbolt the solenoid 'S' terminal nut and battery cable nut. Remove the starter motor mounting bolts, and lift the starter motor out of the manifold cavity.

 

Fig. 4.6L engine starter mounting is under the intake manifold

 

Fig. This is where (and how) the starter motor is mounted in the engine valley on the 4.6L engine. The arrows show the 2 mounting bolts

 

Fig. This is the battery connection to the solenoid. Make sure it is clean and tight

To install:

NOTE

Before installing the starter motor to the engine, tighten inner nuts on the solenoid terminals to be sure they are secure in the cap. Tighten the inner nuts on the battery terminal and motor terminal to 71 inch lbs. (8 Nm). If the nuts are not properly tightened, the starter may fail later due to the terminal or cap damage.

15. Install the solenoid switch lead, and tighten the nut to 22 inch lbs. (2.5 Nm).
16. Install the battery cable nut and tighten to 71 inch lbs. (8 Nm).
17. Install the starter motor and tighten the mounting bolts to 22 ft. lbs. (30 Nm).
18. Install the intake manifold with the throttle body onto the engine and install the four bolts. The four intake manifold bolts must be tightend in a specific sequence to 71 inch lbs. (8 Nm), then an additional 120°.
19. Connect the coolant hoses at the throttle body and at the coolant reservoir. Add coolant as needed.
20. Position the transaxle range control cable to the cruise control bracket.
21. Fasten the EVAP solenoid bracket to the rear cam cover.
22. Reconnect the fuel pipes quick connects at the fuel pipe bundle in the engine compartment.
23. Hook the accelerator cable up at the throttle body.
24. Connect the vacuum hoses at the brake vacuum booster, fuel pipe bundle and to the body. Install the PCV hose at the intake manifold.
25. Install the electrical connectors for the intake manifold, the TP sensor ISC motor, EVAP solenoid and the cruise control servo.
26. Install the air intake duct to the throttle body.
27. Reposition the front bank spark plug wires.
28. Connect the negative battery cable.
29. Connect the positive battery cable.

4.5L and 4.9L Engines

1. Disconnect the negative battery cable.
2. Raise and safely support the vehicle securely on jackstands.
3. Remove the starter motor shield.
4. Remove the exhaust front and rear pipe assembly.
5. Remove the flexplate inspection cover.
6. Disconnect the solenoid 'S' terminal nut and battery cable nut.
7. Unbolt the starter motor mounting bolts, and remove the starter motor.

Fig. Typical starter mounting on early models

Fig. Later model starter location and mounting on the 4.9L engine

Fig. Starter mounting on 4.5L engine with a starter shield

To install:

8. Install the starter motor, and tighten to 32 ft. lbs. (43 Nm).
9. Install the solenoid 'S' terminal nut. Tighten the nut to 35 inch lbs. (4 Nm).
10. Install the battery cable nut and tighten to 12 ft. lbs. (15 Nm).
11. Install the flexplate inspection cover, the front and rear exhaust pipe assembly and the starter motor shield.
12. Lower the vehicle.
13. Connect the negative battery cable.

STARTER TESTING PROCEDURE:----

Voltage Drop Test

Fig. Schematic of a voltage drop test

NOTE

The battery must be in good condition and fully charged prior to performing this test.

1. Disable the ignition system by unplugging the coil pack. Verify that the vehicle will not start.
2. Connect a voltmeter between the positive terminal of the battery and the starter B+ circuit.
3. Turn the ignition key to the START position and note the voltage on the meter.
4. If voltage reads 0.5 volts or more, there is high resistance in the starter cables or the cable ground, repair as necessary. If the voltage reading is ok proceed to the next step.
5. Connect a voltmeter between the positive terminal of the battery and the starter M circuit.
6. Turn the ignition key to the START position and note the voltage on the meter.
7. If voltage reads 0.5 volts or more, there is high resistance in the starter. Repair or replace the starter as necessary.

NOTE

Many automotive parts stores have starter bench testers available for use by customers. A starter bench test is the most definitive way to determine the condition of your starter.

These details will help.

Thanks.           

FOR MORE HELP GO TO: ---

Car repair guide?

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