The service and repair manual for the 1990 Mercury Cougar — 3.8L V6 and 3.8L V6 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 | 1990 |
|---|---|
| Engines | 3.8L V6 — OHV 3.8L V6 — OHV, supercharged |
| Trims | LS Sedan 2-Door · XR-7 Sedan 2-Door |
| Federal record | 3 recalls · 104 complaints · 33 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1990 Cougar manual
03 / ContentsSections in the manual
- Quick Lookups 70
- General Information 1,478
- Accessories & Equipment 469
- Heating, Ventilation & A/C (HVAC) 198
- Body & Frame 213
- Maintenance 131
- Brakes 202
- Restraints 28
- Drivelines & Axles 53
- Steering 322
- Electrical 321
- Suspension 174
- Engine Mechanical 109
- Transmission 187
- Engine Performance 837
04 / Known issuesRecalls on federal record for the 1990 Cougar
- Electrical System — ignition · 96V071000This condition could cause overheating, smoke, and possibly fire in the steering column area of the.
- Electrical System — 12v/24v/48v battery › cables · 90V026000Cable protective covering and insulation could wear through and cause a direct short to ground, resu.
- 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 104 complaints and Mercury has issued 33 technical service bulletins for the 1990 Cougar. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1990 Cougar manual
Is this manual specific to the 1990 Cougar?
Yes. It is the OEM manual matched to the 1990 model year, covering the 3.8L V6 and 3.8L V6 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 1990 Cougar problems does it help with?
3 recalls are on federal record for the 1990 Cougar, covering electrical system, 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 1990 Cougar wiring diagrams?
Yes — the complete wiring diagrams for the 1990 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 1990 Mercury models
1996 Cougar · 1995 Cougar · 1994 Cougar · 1993 Cougar · 1992 Cougar · 1991 Cougar · 1989 Cougar · 1988 Cougar · 1987 Cougar · 1986 Cougar · 1985 Cougar · 1984 Cougar · all 20 years
1990 Mercury Capri · 1990 Mercury Colony Park · 1990 Mercury Grand Marquis · 1990 Mercury Sable · 1990 Mercury Topaz · 1990 Mercury Tracer · every 1990 model