Its not east. must take out entire dash board as the heater core is up underneath the passenger side cabin inside a case. Only way to get to it is removing everything in the way
Drop the fuel tank.
NO.
take it to the dealer
One for each cylinder.
Fuse, loose connection, or the light switch. how do you remove the dashboard on a 94 mercury grand marque?
Why cant you put any 5.0 engine in your 1991 mercury grand marquis
drop the gas tank
it should be on lower left side of dash
To replace the heater core in a 1993 Mercury Grand Marquis, first, disconnect the battery and drain the cooling system. Remove the dashboard and the center console to access the heater core housing. Disconnect the heater core hoses from the engine bay, unbolt the heater core from its housing, and then replace it with the new one. Reassemble the components in reverse order, refill the cooling system, and check for leaks.
where is the running light sensor on a 2003 grand marque
It's IN the fuel tank. Drain the tank, drop the tank, replace the filter and then put it all back together. Not a job for the untrained!
the dealer has to program the key, they will need the car and original key.