Passenger side second cylinder from the front.
On a 1999 Mercury Grand Marquis , 4.6 liter V8 : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
On a 1999 Mercury Grand Marquis , 4.6 liter V8 : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
For a 1995 Mercury Grand Marquis , 4.6 liter SOHC , V8 : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
The 4.6 liter SOHC , V8 engine in a 2000 Mercury Grand Marquis has ( 1 ) timing CHAIN to each cylinder head ( so there are two timing CHAINS )
On a 1999 Mercury Grand Marquis , 4.6 liter V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
The 2005 Mercury Grand Marquis , 4.6 liter SOHC , V8 engine has ( 2 ) timing chains ( 1 timing chain to each cylinder head )
On a 2000 Mercury Marquis , 4.6 liter V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
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 )
If your Mercury Grand Marquis is a 1991 model or older . The 5.0 liter / 302 and the 5.8 liter / 351 has the distributor at the front of the engine The distributor rotor turns COUNTERCLOCKWISE
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 )
According to one of the Ford websites : For a 1987 Mercury Grand Marquis , 5.0 liter / 302 cubic inch V8 engine : The spark plugs are gapped at ( .050 inch )
The firing order for a 1997 Mercury Grand Marquis with a 4.6 liter engine is 1, 3, 7, 2, 6, 5, 4, 8. This means that number 1 fires first and number 8 fires last.