1991 Mercury Grand Marquis electrical system problems

21 owner complaints filed with NHTSA name the electrical system on the 1991 Mercury Grand Marquis — 26% of all complaints for this model year.

Electrical System complaints

26%

share of all complaints

—

median reported incident mileage

0 / 11

crash / fire reports

What owners report

“1991 mercury grand marquis. Consumer writes in regards to defective after market electrical component. *ld the consumer purchased a new starter solenoid relay, bwd select brand by standard motor products inc., after about 10 days, it short-circuited. Due to this the starter would not disengage from…”
filed Jul 19, 2018
“After parking vehicle in driveway consumer was emptying the trunk and noticed smoke coming from under the hood. A fire soon erupted from the passenger's side under the hood, and was quickly extinguished. After careful examination of the results, it was determined by a certified mechanic that the…”
filed Aug 15, 2003

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This aritlce is to provide information on replacement of old style hood lamp switch to the rvised mechanical hood lamp switch. *tt
01194 · Service Bulletin/Repair Instructions · issued Oct 1, 2001
Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses. *tt
99222 · Service Bulletin/Repair Instructions · issued Oct 18, 1999