Typical symptoms could include pump noise, pump leaking coolant through it's weep hole, or engine overheating. Generally when you replace the timing belt, you'll want to replace the water pump while you're around the area. This is certainly not a rule, but in my experience 100k miles is a good lifespan for a water pump.
what is the part called where the water pump is connected to on a 1996 mercury grand marquis -------------------------- That would be the engine
A 1999 Mercury Grand Marquis came from the factory with a 50 / 50 mix of distilled water and ( GREEN color antifreeze , meeting Ford specification ESE-M97B44-A )
Right in the middle of all the pulleys. The one with the big fan on it is the water pump.
heater core is leaking.
According to the 2004 Mercury Grand Marquis Owner Guide : The engine cooling system capacity is ( 18 liters / 19 U.S. quarts ) It came from the factory with a 50 / 50 mix of antifreeze and distilled water
A 1992 Mercury Grand Marquis would have come from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
A 1994 Mercury Grand Marquis would have come from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
The water pump will be located where the lower hose from the radiator meets the engine. It will have a pulley for the belt on it. Good luck.
According to the 2006 Mercury Grand Marquis Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and Motorcraft Premium Gold Engine Coolant ( yellow colored meeting Ford specification WSS-M97B51-A1 )
According to the 2003 Mercury Grand Marquis Owner Guide : It originally came from the factory with a 50 / 50 mix of distilled water and Motorcraft Premium Gold Engine Coolant ( that's YELLOW color , meeting Ford specification WSS-M97B51-A1 )
According to the 2003 Mercury Grand Marquis Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and Motorcraft Premium Gold Engine Coolant ( that's YELLOW color , meeting Ford specification WSS-M97B51-A1 )
There are only two possibilities for the water leak in the 1993 Mercury Marquis. The car could have a leak allowing rain water in. Or, the drain for the ac could be stopped, and condensation is leaking into the car. The condensation is your most likely cause.