Telltale sign is WHITE smoke coming from the exhaust that smells like Antifreeze.
troubleshoot head lamps on 1988 grand marquis? Not working...fuses OK
Change it
The 1998 Mercury Grand marquis has the 4.6 liter / 281 cubic inch Single Over Head Cam ( SOHC ) engine from the factory
On a 2002 Mercury Grand Marquis : No , the 4.6 liter Single Over Head Cam , V8 engine has ( 1 timing CHAIN to each cylinder head , so there are 2 timing CHAINS )
In a 1994 Mercury Grand Marquis : It came from the factory with the 4.6 liter / 281 cubic inch , Single Over Head Cam ( SOHC ) V8 engine
A 1994 Mercury Grand Marquis has the 4.6 liter / 281 cubic inch Single Over Head Cam ( SOHC ) V8 engine from the factory
A 1998 Mercury Grand Marquis came from the factory with the 4.6 liter ( 281 cubic inch ) Single Over Head Cam , V8 engine
In a 1997 Mercury Grand Marquis : ( YES ) the 4.6 liter Single Over Head Cam , V8 engine has ( 1 timing CHAIN to each cylinder head , so there are 2 timing CHAINS )
The 2005 Mercury Grand Marquis , 4.6 liter SOHC , V8 engine has ( 2 ) timing chains ( 1 timing chain to each cylinder head )
4.6 L engine, twin over head cams.
Low Beam: 9006 High Beam: 9005
either at the junk yard or at auto parts warehouse .com