Mercury Cars & Trucks - Recent Questions, Troubleshooting & Support
97 mercury grand marquis wont start after warming up
seems like tempature is the problem,i had same problem with my 96 f-150 in the cold it start and run fine, after its warmed up it wont want to fire at all, my tempature sensor was bad my truck thought it was always cold when it wasnt, so the engine was chokeing my throttle body,and flooding it, put your foot to the floor hard and crank that thing over and over, shell pop and come alive and it will smoke real good to but the chokes open back up after shes runnin...hope it helps
3 days ago
Headlights come on for a
There is actually a possible recall on this issue as it is a known problem with the LCM, or Lights Control Module. Go to the following site:
This is one of the complaints:
HELLO, WE HAVE A 2003 MERCURY GRAND MARQUIS THAT HAS A PROBLEM WITH THE HEAD LIGHTS SHUTTING OFF AT RANDOM TIMES. NOTHING GAVE WARING TO THIS PROBLEM HAPPENING, WE BOUGHT THE CAR USED, AND WAS JUST FINE FOR A YEAR, THEN ALL OF A SUDDEN ONE DAY THE HEADLIGHTS JUST GO OUT. THE FIRST TIME IT HAPPENED WAS ABOUT 6 MONTHS AGO(3-1-10). NOW EVERYTIME IT IS DRIVEN WITH THE HEADLIGHTS ON, IT IS GUARANTEED TO HAPPEN AT LEAST ONCE AND SOMETIMES UP TO 5 TIMES JUST IN 3 MILES OF DRIVING ON MY WIFES WAY HOME FROM WORK. THE ONLY WAY TO GET THE LIGHTS BACK ON AFTER THEY GO OUT IS TO PULL OVER TO THE SIDE OF THE ROAD, SHUT THE CAR OFF, LET SIT FOR A FEW MIN, THEN START AND THEY WORK AGAIN FOR A BIT. THIS IS OVERALL VERY DANGEROUS AND SUPRISING THAT WE HAVE NOT BEEN IN AN ACCIDENT OR RECIEVED A TICKET YET! I AM A ACTIVE MEMBER ON A CROWN VICTORIA FORUM, AND WITH LITTLE SEACHING ON THAT SITE OR GOOGLE YOU WILL SEE TONS OF REPORTS OF THIS BEING A VERY COMMON PROBLEM ON THE 2003-2005 CROWN VICTORIA, GRAND MARQUIS, AND MERCURY MARAUDER. WITH THE HELP OF OTHER MEBERS ON THAT FORUM IT WAS FOUND TO BE A FAULTY LCM(LIGHTING CONTROL MODULE) WHICH HAS A PROBLEM WITH OVERHEATING LIGHTING RELAYS. THE ONLY WAY TO REMEDY THIS PROBLEM IS TO PURCHAS A NEW LCM FOR ANYWHERE BETWEEN $250 AND $600 WITH NO GUARANTEE HOW LONG THAT PART WILL LAST. I ACTUALLY PURCHASED A NEW ONE TODAY. VERY EXPENSIVE FIX JUST FOR THE USE OF HEADLIGHTS, BUT I VALUE MY FAMILIES SAFETY MORE. I WILL BE KEEPING MY OLD LCM TO POSSIBLY HAVE IT REPAIRED FOR WHEN MY NEW PART FAILS AGAIN. THANKS SO MUCH.
on Jul 13, 2019
My 2002 mercury grand marquis cruise control will not come on .
I am not familiar with this model but often this sort of fault is caused by one of the various inhibitors on the system that stops it's use in a dangerous conditions. Pressing the brake pedal for instance automatically stops the cruise otherwise it would try to speed up when you are trying to slow down. If this is a manual transmition vehicle it will have microswitches on the clutch, gear change, brake and hand brake. Automatics will have them on the brake, gear change and hand brake. Check these microswitches for correct operation.
on Jul 12, 2019
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