Top of the left valve cover V8; about in the middle of the valve cover hidden underneath the air cleaner assembly.
Back side of the left valve cover V6
According to the 2002 Mercury Mountaineer Owner Guide : For the 4.0 liter SOHC , V6 engine ( 5W-30 ) For the 4.6 liter V8 engine ( 5W-20 )
According to the 2002 Mercury Mountaineer Owner Guide : The 4.6 liter V8 engine takes ( 5W-20 ) The 4.0 liter SOHC , V6 engine takes ( 5W-30 )
For a 2002 Mercury Mountaineer : With engine oil filter change the 4.0 litre SOHC , V6 engine takes : ( 4.7 litres / 5.0 U.S. quarts of 5W-30 engine oil )
In a 1999 Mercury Mountaineer : Either the 4.0 liter Single Over Head Cam ( SOHC ) V6 engine , or the 5.0 liter V8 , which is an over head valve / push rod design engine
For a 2002 Mercury Mountaineer , 4.0 liter , SOHC , V6 engine : With engine oil filter change : ( 4.7 litres / 5.0 U.S. quarts of 5W-30 ) According to the Owner Guide
The cam position sensor on the 4.0 L - SOHC - V6 engine is by the oil fill cap on the drivers side valve cover
On a 1998 Mercury Mountaineer : Yes , both the 4.0 liter , SOHC , V6 engine and the 5.0 liter V8 engine are fuel injected
( 5 quarts ) with engine oil filter change for the 4.0 liter SOHC , V6 engine in a 2006 Mercury Mountaineer
On a 2002 Mercury Mountaineer : For the 4.0 liter SOHC , V6 engine : firewall 3 - 6 2 - 5 1 - 4 front of vehicle ---------------------------------------------------------------------- For the 4.6 liter V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle ( if that is what you are asking )
In the 1998 Mercury Mountaineer : The 4.0 liter SOHC - V6 engine has ( 3 ) timing CHAINS The 5.0 liter V8 engine has ( 1 ) timing CHAIN
The 2000 Mercury Mountaineer owners manual shows ( 5 W 30 ) - for the 4.0 L - SOHC - V6 engine and the 5.0 L - V8 engine
According to the 2001 Mercury Mountaineer Owner Guide : For the 4.0 litre SOHC , v6 engine and the 5.0 litre V8 engine ( " regular " unleaded gasoline , 87 octane )