1990 Ford Grand marquis problems

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The Mercury Grand Marquis is an automobile that was produced by Mercury from the 1975 until 2011 model years. Introduced as the flagship sub-model of the Mercury Marquis in 1975, the Grand Marquis became a stand-alone model line in 1983, serving as the largest Mercury sedan. The model line served as the sedan counterpart of the Mercury Colony Park station wagon up to 1991. The fourth generation was the basis of the 2003 and 2004 Mercury Marauder.

From 1979 until 2011, the Grand Marquis shared the rear-wheel drive (RWD) Panther platform with the Ford LTD Crown Victoria (Ford Crown Victoria after 1992), and from 1980, the Lincoln Town Car. For over three decades, the Ford and Mercury sedans were functionally identical, with two of the three generations of the model line sharing the same roofline. The Grand Marquis was available as a four-door sedan for nearly its entire run; from 1988 to its final year in 2011, it was the only body style that was offered. A four-door hardtop was available from 1975 to 1978 and a two-door hardtop coupe from 1975 to 1987.

The Grand Marquis was the second-best-selling Mercury line (after the Cougar) with 2.7 million units produced; at 36 years of continuous production, the Grand Marquis was the longest-running Mercury nameplate (the Cougar, 34 years). Ford manufactured the Grand Marquis, alongside the Mercury Marquis, Mercury Marauder, Ford (LTD) Crown Victoria, and (beginning in 2007) the Lincoln Town Car, at two facilities: the St. Louis Assembly Plant in Hazelwood, Missouri (1979-1985) and the St. Thomas Assembly Plant in Southwold, Ontario, Canada (1986-2011).

Ford announced the discontinuation of the Mercury brand in 2010, but a few 2011 model-year Mercurys were made. The last Grand Marquis - and the final Mercury branded car - was produced on January 4, 2011, at St. Thomas Assembly.

1990 Ford Grand marquis

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Common 1990 Ford Grand marquis problems

The 1990 Ford Grand Marquis is known to have several common problems based on complaints from its owners. One of the most frequently reported issues is poor acceleration, with two complaints for the 1989 model year. This issue can be caused by various factors, such as a malfunctioning fuel injector or a vacuum leak.

Fuel injectors are a known trouble spot in the 1985 Grand Marquis, with one complaint for this model year. Fuel injectors can fail over time due to various reasons, including wear and tear, lack of maintenance, or exposure to contaminants in the fuel. When a fuel injector fails, it can lead to poor acceleration, reduced fuel efficiency, and even engine stalling.

Another common problem reported by owners of the 1985 Grand Marquis is the car running hot, with one complaint for this model year. This issue can be caused by a malfunctioning thermostat, a faulty cooling system, or a damaged radiator. When a car runs hot, it can lead to engine damage, reduced performance, and increased fuel consumption.

The 1990 Grand Marquis is also known to have surging issues, with one complaint for this model year. Surging is a condition where the engine's RPMs fluctuate without any apparent reason. This issue can be caused by a malfunctioning fuel pump, a clogged fuel filter, or a faulty throttle position sensor.

One of the most common problems reported by owners of the 1988 Grand Marquis is the car shutting off at idle, with one complaint for this model year. This issue can be caused by a malfunctioning idle air control valve, a faulty throttle position sensor, or a damaged ignition coil. When a car shuts off at idle, it can be dangerous, especially in traffic, and can lead to engine damage if not addressed promptly.

The 1990 Grand Marquis is also known to have electrical issues, with four complaints for this model year. Electrical problems can be caused by various factors, including faulty wiring, blown fuses, or a malfunctioning alternator. When a car has electrical issues, it can lead to various problems, including reduced performance, increased fuel consumption, and even engine damage.

The fuel system is another common problem area in the 1990 Grand Marquis, with two complaints for this model year. Fuel system issues can be caused by various factors, including a malfunctioning fuel pump, a clogged fuel filter, or a faulty fuel pressure regulator. When a car has fuel system issues, it can lead to poor acceleration, reduced fuel efficiency, and even engine stalling.

The cooling system is also known to be a trouble spot in the 1990 Grand Marquis, with two complaints for this model year. Cooling system issues can be caused by various factors, including a malfunctioning thermostat, a faulty radiator, or a damaged water pump. When a car has cooling system issues, it can lead to engine damage, reduced performance, and increased fuel consumption.

Windows are another common problem area in the 1990 Grand Marquis, with one complaint for this model year. Window issues can be caused by various factors, including faulty window regulators, worn-out window seals, or a damaged window motor. When a car has window issues, it can lead to reduced comfort, increased noise levels, and even water leaks.

In summary, the 1990 Ford Grand Marquis is known to have several common problems based on complaints from its owners. These issues include poor acceleration, fuel injector failures, running hot, surging, car shutting off at idle, electrical problems, fuel system issues, cooling system problems, and window issues. If you own a 1990 Grand Marquis, it is essential to address these issues promptly to avoid more severe problems and reduce the risk of engine damage.

1990 Ford Grand marquis engine

How many miles can a Grand Marquis last?

200,000 miles

They will go 200,000 miles easily .

What is value of 1990 Mercury Grand Marquis?

The value of a used 1990 Mercury Grand Marquis ranges from $1,095 to $4,349, based on vehicle condition, mileage, and options.

Do Grand Marquis have transmission problems?

Problem Description

Transmission problems are common in this model, often as a result of a failed front pump.

What engine is in a 1990 Grand Marquis?

Used 1990 Mercury Grand Marquis Sedan LS - Specs & Features

Engine
Base engine size5.0 L
CylindersV8
Base engine typeGas
Horsepower150 hp @ 3,200 rpm

What engine is in a 1990 Grand Marquis?

Used 1990 Mercury Grand Marquis Sedan LS - Specs & Features

Engine
Base engine size5.0 L
CylindersV8
Base engine typeGas
Horsepower150 hp @ 3,200 rpm

How long can a Grand Marquis last?

200,000 miles

They will go 200,000 miles easily .

What is value of 1990 Mercury Grand Marquis?

The value of a used 1990 Mercury Grand Marquis ranges from $1,095 to $4,349, based on vehicle condition, mileage, and options.

Do Grand Marquis have transmission problems?

Problem Description

Transmission problems are common in this model, often as a result of a failed front pump.

1990 Ford Grand marquis car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Ford Grand marquis problems, we found that the most common problems with these 2023 model year vehicles are:

  • Vehicle speed control problems

The graph below shows statistics for all 1990 Ford Grand marquis vehicle components and the number of complaints received.

1990 Ford Grand marquis complaints

The NHTSA has received 1 complaints about various vehicle components related to the 1990 Ford Grand marquis.

2002-03-11

VEHICLE SPEED CONTROL PROBLEM

  • Date Of Incident: 2024-11-24
  • Components: VEHICLE SPEED CONTROL
  • Summary: WHILE TRAVELING AND WITHOUT ANY INDICATION SPEED CONTROL WOULD SET WITHOUT DRIVER SETTING IT. DEALER HAS BEEN CONTACTED. PLEASE PROVIDE FURTHER INFORMATION. *AK
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Additional sources

More sources of information about 1990 Ford Grand marquis problems:

1990 Mercury Grand Marquis Problems and Complaints - 8 Issues
1990 Mercury Grand Marquis Problems and Complaints - 8 Issues
https://repairpal.com/1990-mercury-grand-marquis/problems

Top 1990 Mercury Grand Marquis Problems · Intake Manifold May Crack Leaking Coolant Behind the Alternator · Throttle Position Sensors May Fail and Cause Engine ...

Q&A: Common Problems with 2004 Mercury Grand Marquis ...
Q&A: Common Problems with 2004 Mercury Grand Marquis ...
https://www.justanswer.com/mercury/8s4ix-mercury-grand-marquis-2004-mercury-marquis-started-skipping.html

Nov 21, 2014 ... So a car engine can run with a leaking head gasket/ cracked cylinder head or cracked engine block? Mercury Mechanic: A. Penland. Verified ford ...

1990 Mercury Grand Marquis Repair: Service and Maintenance Cost
1990 Mercury Grand Marquis Repair: Service and Maintenance Cost
https://repairpal.com/cars/mercury/grand-marquis/1990

Get 1990 Mercury Grand Marquis repair and maintenance costs, common problems, recalls, and more. Find certified Mercury mechanics near you.

Idle is driving me nuts - 1991 Grand Marquis | Box Tech | Crownvic.net
Idle is driving me nuts - 1991 Grand Marquis | Box Tech | Crownvic.net
https://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=2808706

Common problem is ECT sensor that is out of ... Common on old Fords for some reason. My ... 1990 Grand Marquis LS The undead. HO 5.0, Holley ...

1999 Grand Marquis - Hard Start/Stalling Problem | Ford Forums
1999 Grand Marquis - Hard Start/Stalling Problem | Ford Forums
https://www.fordforums.com/threads/1999-grand-marquis-hard-start-stalling-problem.155007/

Nov 23, 2007 ... IAC - Idle Air Control Valve. Your symptoms point directly at this......and the IACs are well known to fail on our vehicles. At 167k miles on my ...

Other years of Ford Grand marquis

ford grand marquis 1991 photo
Grand marquis 1991
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ford grand marquis 1992 photo
Grand marquis 1992
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ford grand marquis 1993 photo
Grand marquis 1993
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ford grand marquis 1994 photo
Grand marquis 1994
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ford grand marquis 1995 photo
Grand marquis 1995
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ford grand marquis 1996 photo
Grand marquis 1996
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1990 Ford Grand marquis photo