1990 Mercury Grand Marquis Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Mercury Grand Marquis

No_car_image
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
Get a Repair Estimate For Your 1990 Mercury Grand Marquis
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Repair Estimates

Never overpay. Check prices with our estimator

1990 Mercury Grand Marquis
$
492
to $
779
1990 Mercury Grand Marquis
$
132
to $
301
1990 Mercury Grand Marquis
$
91
to $
116
1990 Mercury Grand Marquis
$
218
to $
372
1990 Mercury Grand Marquis
$
277
to $
391

1990 Mercury Grand Marquis Problems

EVP Sensor Failure May Cause Drivability/Fuel Economy Issues

The EGR valve position (EVP) sensor can fail on this vehicle. The EVP sensor measures the EGR valve position and transmits the date to the engine control computer. If it fails, drivability and fuel economy can suffer, the Check Engine Light will commonly illuminate.

Engine Performance Problems Due to Failed Throttle Position Sensor

The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.

Engine Stalling and/or Hesitation on Acceleration due to Faulty Idle Air Bypass Valve

If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve. This valve helps the vehicle idle steady when the accelerator pedal is not pressed.

See More Problems (6)

1990 Mercury Grand Marquis Recalls

Recall 90E043001
THREADED INFLATOR COMPONENTS MAY HAVE BEEN DAMAGED DURING ASSEMBLY WHICH MAY ALLOW COMPONENTS TO SEPARATE WHEN INFLATOR RECEIVES A SIGNAL TO DEPLOY THE AIR BAG.

See More Recalls (1)

1990 Mercury Grand Marquis Reviews

Hi i am 15 and this is my first car i paid $500.00 for it. it has a major gas and oil leak and had its tail pipe ripped off but, overall its a nice car. its got a 5.0 liter V8 in it. its extremly quiet for a V8 and with no tail pipe its still quiet. its also got ajustable air shocks. a mini air compresser kicks on when it runs. i think its for the shocks but it could also be for the vacume sys...
I REALLY DIDNT LIKE FORD OR MERCURY BUT THIS IS MY SECOND FORD PRODUCT AND IT RIDES SO SMOOTH IT LOOKS LIKE A LINCOLN RIDES LIKE A LINCOLN HAS ALL THE BELLS AND WHISLES.

See More Reviews (2)