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2000 Mercury Grand Marquis repairs by problem area

Chart based on 26 repairs.

2000 Mercury Grand Marquis engine repair cost distribution

Chart based on 9 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten 2000 Mercury Grand Marquis repair histories. Log in or join us to see them all.

2000 Mercury Grand Marquis

Engine not specified

76000 mi

US $20
misfiring and stuttering while driving. replaced spark plugs, didn't help. Ordered TOSP coils from Amazon for $45. 
78000 mi

US $45
replaced top of spark plug coils, all is fine now. 
136000 mi

US $200
thermostat 

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2000 Mercury Grand Marquis 4dr Sedan

215-horsepower 4.6L V8 4-speed automatic RWD

170000 mi

US $100
Misfire. Water in plug well, replaced plug boots and two coils. 
176000 mi

US $150
Bad idle, replaced IAC, didn't solve problem. Traced issue down to malfunctioning coil-on-plug. 
177000 mi

US $150
Bad coil, same one replaced again. 
159000 mi

US $300
Intake manifold developed hairline crack. Replaced intake manifold. 
152000 mi

US $100
Heater core leaking, had to remove dash and replace inexpensive part. Labor was insane, glad to have a friend to help. 
177000 mi

US $230
Install two (2) new mufflers 

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2000 Mercury Grand Marquis 4dr Sedan

200-horsepower 4.6L V8 4-speed automatic RWD

68000 mi

US $50
Replaced faulty IAC valve 
87000 mi

US $107
Belt tensioner pulley failing; was replaced. 
124000 mi

US $900
Oil gauge showing no oil pressure. Oil pressure sensor/switch replaced. 

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2000 Mercury Grand Marquis Engine Problems

20 TrueDelta members own (or used to own) a 2000 Mercury Grand Marquis. 8 of these members (40%) have reported engine repairs for their car. A total of 12 engine repairs to 2000 Mercury Grand Marquiss--an average of 0.6 per vehicle--have been reported.

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2000 Mercury Grand Marquis problems occur, check out our car reliability stats.