The 1970-1993 Cadillac Sedan DeVille, Coupe DeVille, Brougham, and Seville service, repair and maintenance manual by Haynes, covers:
- Cadillac Seville, 1975-1979
- Cadillac Sedan DeVille, 1970-1993
- Cadillac Coupe DeVille, 1970-1993
- Cadillac Brougham, 1970-1993
Note: this manual does not include diesel engine or front-wheel drive info.
Book Excerpt: 1970-1993 Cadillac Sedan DeVille Coupe DeVille Brougham Seville Repair Manual
FRONT COVER, TIMING CHAIN AND SPROCKETS | REMOVAL AND INSTALLATION
(Refer to illustrations 12.10, 12.11a, 12.11b and 12.12)
- Disconnect the negative cable from the battery.
- Remove the alternator and brackets as well as the distributor (if the distributor is mounted to the front cover) (see Chapter 5).
- Drain the cooling system and disconnect the radiator hoses, heater hose (where applicable) and the small by-pass hose (where applicable).
- Remove the radiator top support, the fan shroud, the fan and pulley and the radiator (see Chapter 3). Note: On some models it is necessary to remove the staples that secure the upper portion of the fan shroud to the lower portion in order to remove the assembly.
- Remove the crankshaft drive pulley and the vibration damper (see Section 7).
- Remove the water pump (see Chapter 3). Remove the fuel pump (where applicable). Unbolt and set aside any engine accessories which are in the way without disconnecting the hoses.
Refer to the appropriate Chapters for further information.
- Remove the nuts and bolts that attach the cover to the engine, then pull the cover free.
If it's stuck, knock it loose with a hammer and a wood block. Don't pry between the mating surfaces, or oil leaks may result.
NOTE: If you are working on a 5.7L Chevrolet manufactured engine, loosen the front four oil pan bolts on each side to ease removal and installation of the front cover.
NEUTRAL START SWITCH | REMOVAL AND INSTALLATION
1970 THROUGH 1973 MODELS ONLY
NOTE: 1974 and later models do not have a neutral start switch. A mechanical block in the steering column prevents the engine from cranking in positions other than Park or Neutral.
- When the switch is operating properly, the engine should crank with the shift lever in Park or Neutral only. Also, the back-up lights should come on when the lever is in Reverse.
- Set the shift lever against the Neutral gate by rotating the lower lever on the shift tube counterclockwise as viewed from the driver's seat.
- Remove the screw from the mounting bracket and carefully remove the switch from the bottom of the steering column. If the switch is going to be reused, be very careful not to disturb the position of the contact carrier.
- Mark the position of the contact carrier.
- Remove the vacuum hose and the electrical connections.
- If a new switch is being installed, the switch will be secured in Neutral by a shear pin. Don't break the pin.
- Locate the switch actuating tang in the shifter tube slot and then tighten the securing screw.
- Connect the electrical connectors and vacuum hose to the switch and check that the starter motor will actuate.
- If the switch operates correctly, move the shift lever out of Neutral, which will cause the alignment pin to shear.
TRANSMISSION MOUNT | CHECK AND REPLACEMENT
(Refer to illustration 7.1)
- Insert a large screwdriver or prybar into the space between the transmission extension housing and the crossmember and pry up (see illustration).
- The transmission should not move away from the insulator much at all.
- To replace the mount, remove the nuts attaching the insulator to the crossmember and the bolts attaching the insulator to the transmission.
- Raise the transmission slightly with a jack and remove the insulator, noting which holes are used in the crossmember for proper alignment during installation.
- Installation is the reverse of the removal procedure.
Subject: 1970, 1971, 1972, 1974, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993. Cadillac Sedan DeVille, Coupe DeVille, Brougham, Seville service, maintenance, repair. ISBN-10: 1563921650 | ISBN-13: 9781563921650 | Haynes 21030