Ive had this happen one time & near the drivers side wheel well in the trunk behind the grey trunk liner there was a wire cut & it was releasing the trunk when put in reverse,so I repaired wire with a automotive but connector & it fixed it .
According to the 2002 Mercury Grand Marquis Owner Guide : The ON / OFF rocker switch for the rear air suspension is located : ( in the trunk , on the drivers side of the trunk , the Owner Guide shows that there is a label next to the switch )
Do you mean the fuel pump reset switch behind the trunk liner ( access hole ) ?
2004 mercury grand marquis fan stop working
For a ( 2002 ) Mercury Grand Marquis : 220 horsepower ( 235 horsepower with dual exhaust )
I would say ( No ) I was looking at the 2002 Mercury Grand Marquis Owner Guide and it doesn't show any reference to a cabin air filter
check in thr trunk...there should be a whte label with about 5 or 6 digits ...that is the code u r looking for. good luck
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of 2002 Mercury Grand Marquis
can we
NO
i have a 2002 grand marquis and when i driving on the highway at speed of 60 to 70 the light of traction control star to flash way is the problem
change wiper motor grand marques
Have the codes read.