1999 Mercury Grand Marquis Consumer Review: Poor gas milage

1999 Mercury Grand Marquis - Consumer Review

Average Consumer Rating

53 Total Reviews

GS Sedan (4.6L V8 4-speed Automatic)

Build Quality
Reliability Value
Poor gas milage
By kyle on


1999 Mercury Grand Marquis GS 4dr Sedan


i have had my mercury for 2 yrs. I've had the fuel pump go out on it twice. For those of you who have to change the pump, change your fuel pressure regulator that caused the pump to over work. it a great highway car. but, the mpg is poor. I'm getting a Buick. i love mercurys. they have poor mpg. the 3.8 n the buick has a intake manifold problem. i've changed it in my merc,

Best Features

power, handling, stable as a rock.

Worst Features

get a buick.
Recommend (0) (2)

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