The service and repair manual for the 1986 Mercury Marquis — 2.3L I4 and 3.8L V6 engines, 4 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 | 1986 |
|---|---|
| Engines | 2.3L I4 — SOHC 3.8L V6 — OHV |
| Trims | Base Sedan 4-Door · Base Wagon 4-Door · Brougham Sedan 4-Door · Brougham Wagon 4-Door |
| Federal record | 1 recall · 4 complaints · 4 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1986 Marquis manual
03 / ContentsSections in the manual
- Quick Lookups 65
- Engine Performance 840
- Accessories & Equipment 254
- General Information 1,456
- Body & Frame 75
- Heating, Ventilation & A/C (HVAC) 255
- Brakes 56
- Maintenance 98
- Drivelines & Axles 46
- Steering 120
- Electrical 237
- Suspension 59
- Engine Mechanical 142
- Transmission 142
04 / Known issuesRecalls on federal record for the 1986 Marquis
- Fuel System, Gasoline — delivery › fuel pump · 07E064000A leaking fuel pump could create a vehicle fire hazard.
Owners have filed 4 complaints and Mercury has issued 4 technical service bulletins for the 1986 Marquis. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1986 Marquis manual
Is this manual specific to the 1986 Marquis?
Yes. It is the OEM manual matched to the 1986 model year, covering the 2.3L I4 and 3.8L V6 across the Base Sedan 4-Door, Base Wagon 4-Door, Brougham Sedan 4-Door, Brougham Wagon 4-Door trims. Specifications and procedure sequences are the ones Mercury published for this year.
What 1986 Marquis problems does it help with?
1 recall is on federal record for the 1986 Marquis, covering fuel system, gasoline. 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 1986 Marquis wiring diagrams?
Yes — the complete wiring diagrams for the 1986 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 Marquis years and 1986 Mercury models
1985 Marquis · 1984 Marquis · 1983 Marquis · 1982 Marquis · all 5 years
1986 Mercury Capri · 1986 Mercury Cougar · 1986 Mercury Grand Marquis · 1986 Mercury Lynx · 1986 Mercury Sable · 1986 Mercury Topaz · every 1986 model