The Spark plug location on the 2001 2.5 liter dohc is under the valve cover.
According to one of Fords websites : For the 1992 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
According to one of the Ford websites : For a 1988 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
According to one of Fords websites : For the 3.8 liter V6 engine in a 1988 Mercury Cougar : ( the spark plugs are gapped at .054 inch )
.040 ========================================================== According to one of Fords websites : For a 1993 Mercury Cougar : The 3.8 liter V6 engine and the 5.0 , V8 have spark plugs gapped at : ( .054 inch )
According to one of Fords websites : For a 1994 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
According to one of Ford's websites : For a 1991 Mercury Cougar , 3.8 liter V6 : ( the spark plug gap is .054 inch )
( .054 inch ) for the 3.8 liter V6 and the 5.0 liter V8 according to ford parts . com
According to the 2002 Mercury Cougar Owner Guide : For the 2.5 liter V6 engine : The spark plug gap is ( .054 inch ) *** confirm with the Vehicle Emission Control Information ( VECI ) decal , in the front of your engine compartment ***
On a 1997 Mercury Cougar : The engine oil dipstick is on the drivers side of the engine ( for the 3.8 liter V6 and the 4.6 liter V8 )
The 3.8 liter V6 engine in a 1991 Mercury Cougar has a timing CHAIN
Is this a trick question , because there wasn't a 1998 model year for the Mercury Cougar The 1997 Mercury Cougar , with the 3.8 liter V6 engine , has a ( 18.0 US. gallon tank The 1999 Mercury Cougar , with the 2.5 liter V6 engine , has a ( 15.4 US. gallon tank )
A 2002 Mercury Cougar 2.5 liter plug wire diagram can be purchased from your local Mercury Cougar. It can also be found at most auto parts stores.