1992-2008 Mercury Grand Marquis: Reliability
Updated: 11/23/08
2008 Mercury Grand Marquis
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1992-2008 Mercury Grand Marquis ▼
- Price Range: $900 - $14,200
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Our reliability study for this generation Mercury Grand Marquis includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Mercury Grand Marquis .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Accessory belt:
The serpentine belt may come off in wet weather. A redesigned belt tensioner and water pump pulley are available. (2001-02)
Air springs:
Air springs are prone to leaks caused by the bag rubbing against the axle or control arm. (Any so-equipped)
Automatic transmission:
The transmission may slip and the engine may flare when the transmission shifts into fourth gear, which can often be traced to a bad TR/MLP sensor. (1992-95)
Cold-starting problems:
The drive-belt tensioner pulley or idler-pulley bearings are apt to make a squealing noise when the engine is started in cold weather. (1993-96)
Coolant leak:
The intake manifold on 4.6L V8 engines is prone to breakage resulting in coolant loss and possible overheating. The manufacturer is reimbursing owners who paid for fixes up to $735 and extending the warranty for others (1996-2001)
Hard starting:
The connector at the starter solenoid tends to corrode resulting in a "no-crank" condition. (1992-94)
Hard starting:
If the engine does not start or cranks for a long time then stalls, the idle-air control valve may be sticking. (1996)
Heater core:
Installing a restrictor in the heater inlet hose may repair heater cores leaks. (1990-2002)
Oil pump:
The oil filter balloons and leaks because the oil-pump relief valve sticks. Higher than recommended viscosity oils cause wear to the valve bore. (1992-94)
Transmission noise:
Automatic transmission is notorious for shuddering or vibrating under light acceleration or when shifting between third and fourth gear above 35 mph. It requires that the transmission fluid (including fluid in the torque converter) be changed and that only Mercon fluid be used. (1992-94)
Vehicle noise:
A broken gusset or weld separation at the frame crossmember causes a rattle from the rear or the car. (1990-92)
Vehicle noise:
A chattering noise from the rear during tight turns after highway driving is caused by a lack of friction modifier or overshimming of the clutch packs in the Traction-Lok differential. (1992-96)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $380 |
| Alternator | $375 |
| Automatic Transmission or Transaxle | $490 |
| Brakes | $285 |
| Exhaust System | $680 |
| Radiator | $380 |
| Shocks and/or Struts | $290 |
| Timing Chain or Belt | $365 |
| Universal Joints | $90 |
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