1998 Mercury Grand Marquis Electrical system Problems

“I have had all of my electrical components fixed, the alternator,the regulator,all the pig-tails,and a new battery. I am still having a problem with the battery light coming on. I have paid out alot of money to fix the problem. I am a tow truck driver and I tow alot of vehicles of this make and model for the same reason.”

“Electrical short on 1998 Mercury Grand Marquis causes engine to stall at highway speeds. Power brakes and steering not operable when engine stalls. Cannot restart engine when condition occurs. Car towed all three times. Problem documented in ford service bullitin 12950. Problem occured 3 times: november 2003 october 2004 november 2004.”

“The contact owns a 1998 Mercury Grand Marquis. While driving various speeds, the headlights and instrument panel lighting failed to illuminate. The contact stated that the failure occurred periodically. The vehicle was not taken to a dealer or independent mechanic for diagnostic testing or repairs. The manufacturer was not notified of the failure. The failure mileage was approximately 109,000.”

“The contact owns a 1998 Mercury Grand Marquis. The contact stated that the interior and exterior lighting operated intermittently. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 165,784.”

“While driving on the highway at 65 MPH, black toxic smoke suddenly started bellowing out from around the radio area in the center dashboard. A loud rapid clicking sound was also heard. Upon realizing what was going on, I steered the car safely off the highway ramp and shut the vehicle off. I inspected the engine under the hood and found nothing wrong. Upon a 15 min shutdown I restarted the engine and both the smoke and clicking sound had ceased so I drove the car to the dealer. On 28 dec 00 the Mercury dealer only removed the radio and glovebox and noted nothing abnormal. …”