It tells whether the fuel mixture in your engine contains too much fuel rich or too much air oxygen lean.
O2 sensor grand marquis.
Oxygen o2 sensor locations are upstream and downstream before and after the catalytic converters.
On top of low prices advance auto parts offers 4 different trusted brands of oxygen sensor products for the 2000 mercury grand marquis.
Equip cars trucks suvs with 2000 mercury grand marquis oxygen sensor from autozone.
O2 sensor circuit bank 1 sensor 2 the performance of your vehicle s engine relies heavily on maintaining the right air to fuel mix for combustion.
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The average cost for a mercury grand marquis oxygen sensor replacement is between 135 and 193.
Running a high quality o2 sensor for mercury grand marquis from autozone ensures that your computer receives this information with the right amount of voltage.
The 2003 mercury grand marquis came equipped with the 4.
The mercury grand marquis oxygen sensor monitors the amount of burned gases in the exhaust system.
The engine control module ecm determines the proper ratio by collecting data from different sensors within the air intake fuel injection and exhaust systems.
It adjusts your air to fuel ratio based on current driving conditions thereby maintaining optimal fuel economy with a low level of emissions.