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Repairpal verified 1998 Mercury Grand Marquis problems

 

Verified for the Mercury Grand Marquis

The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.

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Verified for the Mercury Grand Marquis

The alternator may get too hot, causing premature bearing failure.

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Verified for the Mercury Grand Marquis

An oil leak may develop from the the right side head gasket.  Oil from this type of leak will commonly drip onto the starter. Our technician tell us an updated head gasket is available to correct this concern.

10 Reports
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Verified 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.

20 Reports
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