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Mercury Grand Marquis Problems

Battery Light Due to Damaged Alternator Connector on Mercury Grand Marquis

Problem Description and Possible Solution

The battery light may illuminate on the instrument panel because the alternator wire harness connector is damaged. A new connector kit is available and should be installed to correct this concern.

(8 people reported this problem)

Mercury Grand Marquis Vehicles With This Problem

RepairPal Verified
Average mileage: 157,101 (124,202–190,000)
4 model years affected: 1990, 2000, 2003, 2006
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Viewing 1-3 of 3 comments
I have had this problem and replaced the alternator 2 times and battery 2 times. Car now seems to have some electrical problem.
Battery light will flash for a second every now and than starter Good, at good battery, good..had these things tested alternator good