Head light goes on-off frequently. Auto delay off switch is operational even though head light getting on-off. I found that this vehicle has been recalled for this issue.
1992 Mercury Grand Marquis: headlights failing or too dim
21 of the 255 complaints about the 1992 Mercury Grand Marquis describe headlights failing or too dim.
- owner complaints
- 21
- of this car's complaints
- 8%
- typical mileage
- 120,000
- recalls
- 0
Is there a fix? 1 service bulletin covers this area of the car. See below
Headlights failing or too dim by model year
What owners say
For the second time in approximately 1 year, the headlights started turning off an on when driving home on the freeway 4 nights ago. The first time this happened a year ago, the headlight switch , burned wire and burned connector were replaced. The car is currently parked as I feel it is unsafe to drive with the overheating wiring.
Tl* the contact owns a 1992 mercury grand marquis. While driving at approximately 50 MPH, the headlights, tail lights, and instrument panel lighting failed to illuminate. In addition, the contact stated that the dashboard was hot. The failure recurred numerous times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 200,000.
Tl* the contact owns a 1992 mercury grand marquis. The contact stated that while driving approximately 35 MPH the headlights and tail lights stopped illuminating. The contact stopped the vehicle.after continually switching the headlight switch on and off, the lights eventually illuminated. The vehicle was not taken to the dealer for a diagnostic test. The vehicle was not repaired. The approximate failure mileage was 120,000.
On prior occasions, vehicle experienced intermittent loss of interior lights on instrument panel. Recently,experienced loss of headlights on 92 mercury grand marquis during trip over thanksgiving holiday. Consequences could have been fatal had the lights not came back on after I turned the headlights off and then back on again. In an attempt to replace what I thought was a faulty headlight switch, I discovered a wire harness connector to the headlight switch shows indication of high temperatures due to burning and melting. Similar to recall on the ford contour. (see the federal safety agency campaign id number: 99v103000 ). I plan to contact ford and see if they will replace for free and or give me the part number of the harness connector part so that I may be able to replace. I plan on keeping both the faulty connector and the original switch in the hope that it will be of benefit to understand the failure mechanisms of the exterior headlights.
While driving at night, it was noticed that the instrument panel lights, tail lights, and parking lights were not lit even though the headlights brake lights and turn signals were working properly. The fuse for that circuit was checked and it was not blown. The dashboard was disassembled for removal of the headlight switch and it was revealed that the wire to the tail lamp/parking lamp/instrument panel had become hot enough to melt the wire itself. The connectors for the headlight switch are en-block and consist of 7 connectors in one block and 3 connectors in a separate block. The 7 connector block had burnt plastic in the area of the tail light wire, and the 3 connector block was warped from the heat. This is a 1992 mercury grand marquis that was built in may of 1991. Repairs are awaiting suitable replacement parts.
The light switch assembly on my 1992 mercury grand marquis that controls the headlamps, tail and brake lights has failed twice within a 7 year period requiring full replacement. When the failure occurs, all brake and tail lights fail to operate as well as the dashboard lights.
Consumer states that while driving the vehicle at 40 MPH the headlights will start to go on and off. Contacted dealer and the dealer is not willing to do anything. Nlm
Plastic headlight lenses are discolored, causing headlights to be extremely dim. Please give any further details.
Headlights would only work intermittently. Repair shop replaced defective headlight switch, had caused wires to be hot.*ak
Headlight lens cover discoloration/fade, causing very poor visibility while traveling at night. Dealer notified and refused to correct problem unless cost goes to consumer.
When turning the head lights, tail lights will not come on, and later the headlights will start blinking. Dealer has not seen vehicle.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 1992 Mercury Grand Marquis headlights
Is headlights failing or too dim a common problem on the 1992 Mercury Grand Marquis?
21 of 255 owner complaints about the 1992 Mercury Grand Marquis (8%) mention headlights failing or too dim. The model year with the most reports is 2005.
Is there a recall or service bulletin for this on the 1992 Mercury Grand Marquis?
There are 0 recalls and 1 service bulletin for the same area of the car. Check them below with your VIN.
Other symptoms on the 1992 Mercury Grand Marquis
Fire or smoke 16Adaptive cruise 11ABS 10Fuel pump 9Transmission failure 7Wipers 6
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