The service and repair manual for the 1991 Mercury Cougar — 3.8L V6 and 5.0L V8 engines, 2 trims. Matched to this exact model year, so the specifications and sequences are the ones Mercury published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1991 |
|---|---|
| Engines | 3.8L V6 — OHV 5.0L V8 — OHV |
| Trims | LS Sedan 2-Door · XR-7 Sedan 2-Door |
| Federal record | 3 recalls · 98 complaints · 36 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 Cougar manual
03 / ContentsSections in the manual
- Quick Lookups 67
- General Information 1,479
- Accessories & Equipment 397
- Heating, Ventilation & A/C (HVAC) 246
- Body & Frame 182
- Maintenance 131
- Brakes 134
- Restraints 28
- Drivelines & Axles 69
- Steering 194
- Electrical 306
- Suspension 175
- Engine Mechanical 233
- Transmission 160
- Engine Performance 856
04 / Known issuesRecalls on federal record for the 1991 Cougar
- Electrical System — ignition · 96V071000This condition could cause overheating, smoke, and possibly fire in the steering column area of the.
- Power Train — automatic transmission · 91V048000If park is not engaged and the parking brake is off, avehicle roll-away could result.
- Visibility — windshield wiper/washer › motor · 91V076000Changes in the wiper pattern or jamming of the wiperswould result in reduced driver visibilty in inc.
Owners have filed 98 complaints and Mercury has issued 36 technical service bulletins for the 1991 Cougar. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 Cougar manual
Is this manual specific to the 1991 Cougar?
Yes. It is the OEM manual matched to the 1991 model year, covering the 3.8L V6 and 5.0L V8 across the LS Sedan 2-Door, XR-7 Sedan 2-Door trims. Specifications and procedure sequences are the ones Mercury published for this year.
What 1991 Cougar problems does it help with?
3 recalls are on federal record for the 1991 Cougar, covering electrical system, power train, visibility. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Mercury dealers.
Does it include 1991 Cougar 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 Cougar years and 1991 Mercury models
1997 Cougar · 1996 Cougar · 1995 Cougar · 1994 Cougar · 1993 Cougar · 1992 Cougar · 1990 Cougar · 1989 Cougar · 1988 Cougar · 1987 Cougar · 1986 Cougar · 1985 Cougar · all 20 years
1991 Mercury Capri · 1991 Mercury Colony Park · 1991 Mercury Grand Marquis · 1991 Mercury Sable · 1991 Mercury Topaz · 1991 Mercury Tracer · every 1991 model