The service and repair manual for the 1991 Cadillac DeVille — the 4.9L V8 engine, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Cadillac published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1991 |
|---|---|
| Engines | 4.9L V8 — OHV |
| Trims | Spring Edition Sedan 4-Door · Spring Edition Coupe 2-Door · Base Sedan 4-Door · Touring Sedan 4-Door · Base Coupe 2-Door |
| Federal record | 1 recall · 105 complaints · 4 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 DeVille manual
03 / ContentsSections in the manual
- Quick Lookups 69
- General Information 1,550
- Accessories & Equipment 360
- Heating, Ventilation & A/C (HVAC) 234
- Body & Frame 245
- Maintenance 46
- Brakes 216
- Restraints 206
- Drivelines & Axles 22
- Steering 128
- Electrical 153
- Suspension 212
- Engine Mechanical 145
- Transmission 763
- Engine Performance 1,481
- To-Floor Pan Mounting Nuts Or Bolts 21
- Fisher 18
- Hancock 16
- Back Frame Attaching Bolts 18
- Nonfolding Recliner-To-Seatback Bolts 13
04 / Known issuesRecalls on federal record for the 1991 DeVille
- Power Train — axle assembly · 94V199000In the event of separation of the coupling, an oil leak can occur which, when exposed to an ignition.
Owners have filed 105 complaints and Cadillac has issued 4 technical service bulletins for the 1991 DeVille. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 DeVille manual
Is this manual specific to the 1991 DeVille?
Yes. It is the OEM manual matched to the 1991 model year, covering the 4.9L V8 across the Spring Edition Sedan 4-Door, Spring Edition Coupe 2-Door, Base Sedan 4-Door, Touring Sedan 4-Door, Base Coupe 2-Door trims. Specifications and procedure sequences are the ones Cadillac published for this year.
What 1991 DeVille problems does it help with?
1 recall is on federal record for the 1991 DeVille, covering power train. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Cadillac dealers.
Does it include 1991 DeVille wiring diagrams?
Yes — the complete wiring diagrams for the 1991 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther DeVille years and 1991 Cadillac models
1997 DeVille · 1996 DeVille · 1995 DeVille · 1994 DeVille · 1993 DeVille · 1992 DeVille · 1990 DeVille · 1989 DeVille · 1988 DeVille · 1987 DeVille · 1986 DeVille · 1985 DeVille · all 24 years
1991 Cadillac Allante · 1991 Cadillac Brougham · 1991 Cadillac Commercial Chassis · 1991 Cadillac Eldorado · 1991 Cadillac Fleetwood · 1991 Cadillac Seville · every 1991 model