2002 Mercury Grand Marquis Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2002 Mercury Grand Marquis

The heater hose outlet may leak coolant at the back of the intake manifold. Sometimes this is misdiagnosed as a leaking intake manifold gasket because it resembles a leaking manifold.

Wear on the rear axle shafts near the bearings can create excessive play and lead to gear oil leaking past the seals. Gear oil will leak onto the brake backing plate, brakes, and wheels.

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Unable to get it out of park, no break lights, turn signal or hazard. Head lights work and so do the tail lights. what is wrong? I have replaced the pigtail connector at the break light switch. What do I do next?

While driving on dry roads, mainly going up hill, as I speed up car starts vibrating like road has ruffles in it. Sometimes just going down the road it does this when I let off the gas its stops, what is wrong and causing car to vibrate on road, every time I drive it now. The car has positive rea...

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over all car is a smooth riding luxury sedan,,, add a few more toys and it would be a lincoln at about a3rd of the price,,, but a lot of problems with the automatic temp control system

I have a 2002 mecury grand marquis, have had a lot of repair, wiper pivot arm ass,replace idle air control valve twice, replaced #1 coil, #2 coil,just a couple of mos. ago replaced #5coil, had bearings go out of ac compresser, replaced. All this time in the last year my car has had a low roar when excelerating my gas milage is in the pits gone from 18 in city to 13.5 had 3 different shops one a...

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