This DIY service, repair and maintenance manual by Haynes, covers the following 1986-1993 Cadillac, Buick and Oldsmobile passenger cars:

• Cadillac Eldorado, 1986-1991
• Cadillac Seville, 1986-1991
• Cadillac Deville FWD, 1986-1993
• Cadillac Fleetwood FWD, 1986-1992
• Oldsmobile Toronado, 1986-1992
• Buick Riviera, 1986-1993

Book Excerpt: 1986-1993 Cadillac Eldorado, Seville, Deville, Fleetwood; Olds Toronado; Buick Riviera Repair Manual FUEL AND EXHAUST SYSTEMS

THROTTLE BODY | REMOVAL AND INSTALLATION CADILLAC MODELS (Refer to illustrations 13.4a, 13.4b and 13.7)

1. Remove the air cleaner (see Section 9).
2. Remove the ISC motor from the throttle body (see Chapter 6).
3. Unplug the electrical connector from the Throttle Position Sensor (TPS).
4. On TBI equipped models remove the fuel feed and return lines (see illustration). Remove the fuel line O-rings from the nuts and discard them. Unplug the electrical connectors from the fuel injectors and detach the injector wiring harness grommet from the throttle body (see illustration).
5. Detach the accelerator cable, throttle return spring(s), transmission detent cable (automatics) and, if equipped, cruise control cable.
6. Clearly label, then detach, all vacuum hoses.
7. Remove the throttle body mounting bolts (see illustration) and lift the throttle body from the intake manifold. Remove and discard the throttle body mounting gasket.
8. Installation is the reverse of removal.

BODY | DEVILLE AND FLEETWOOD MODELS

FRONT DOOR

15. Remove the trim panel retainer and sealer strip.
16. Remove the rubber stop bumper, screws and front run channel.
17. Lower the glass halfway, slide the window regulator guide block off the sash channel and tilt the glass outboard of the door frame to remove it.
18. To install, insert the glass into the door and engage the regulator guide block to the sash channel. Engage the rear guide clip on the glass to the rear run channel weatherstrip.
19. Raise the glass to the half way up position and install the front run channel bolts finger tight.
20. Engage the front clip on the glass in the front run channel and tighten the bolts securely.
21. Install the rubber stop bumper.
22. The remainder of installation is the reverse of removal.

Subject: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993 Cadillac Eldorado, Seville, Deville, Fleetwood, Olds Toronado; Buick Riviera service, maintenance, repair. ISBN-10: 1563923475 | ISBN-13: 9781563923470 | Haynes 38031