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2002 Mercury Grand Marquis Problems

Heater Hose Outlet May Leak Coolant at Back of Intake Manifold

for the 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.

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Wear on rear axle shafts may cause excessive play and gear oil leaks

for the Mercury Grand Marquis

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

4 Reports

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