IllustrationELECTRICAL SHORT, CONTINUES TO BLOW FUSES. TT
1986 Mercury Marquis
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Marquis years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 4 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
Electrical System complaints
1 reportsOfficial recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2PE87028 · Stalling
Opened May 1, 1987 · Closed Jan 21, 1988
Status: closed (inferred from source dates) · Electrical System
NO SAFETY DEFECT TREND HAS BEEN DETECTED.===
EA86010 · Seatback Failure
Opened Mar 26, 1986 · Closed Jul 28, 1989
Status: closed (inferred from source dates) · Seats
SUMMARY OF INFORMATION FROM MANUFACTURER:FORD BELIEVES THAT THE AL-LEGED DEFECT ONLY OCCURS IN A SMALL NUMBER OF THE SUBJECT VEHICLES ANDRECALLED ABOUT 195,732 1984 TEMPO/TOPAZ VEHICLES IN JUNE 1986.ANALYSIS: VEHICLES POTENTIALLY INVOLVED INCLUDE TEMPO/TOPAZ, ESCORT/LYNX/EXP, MUSTANG/CAPRI, LTD/MARQUIS, AND THUNDERBIRD/COUGAR.FORD SOLD ABOUT 110,000 REPLACEMENT MIO BOLTS, MAINLY FOR 1983 AND 1984MODELS. LOW CLAMPING FORCE APPEARS TO BE A LARGE PART OF THE PROBLEM.FORD INCREASED THE TORQUE REQUIREMENTS AND REQUIRED THE USE OF A MANUALTORQUE TOOL IN MARCH AND SEPTEMBER 1985 PRODUCTION CHANGES. 1987 MODELSWILL BE PRODUCED WITH A LONGER M10 BOLT AND A NUT TO INCREASE AND MAIN-TAIN CLAMPING FORCE. BOLTS WERE FORMERLY SELF TAPPING. REPORTS LISTEDABOVE SPECIFICALLY STATE THAT THE BOLT BROKE. NONE REFER SIMPLY TOSEAT BACK COLLAPSE ALONE.STATUS:FORD REPLY TO ODI IR DATED 2/2/87.FORD RECALLED 195,7321984 TEMPO/TOPAZ VEHICLES IN JUNE 1986 (86V-082). ANALYZING REPONSE,MONITORING CANADIAN PROGRESS. RESPONSE TO 4/6/87 LETTER TO FORDRECEIVED 7/15/87. WILL PROBABLY CLOSE AFTER CANADA COMPLETES THEIRACTIONS.===