it is .044
The 2003 Ford Taurus has a V6 engine.
motorcraft.com shows the spark plug gap for a 2003 Ford Taurus 3.0 L - DOHC - V6 as ( .056 inch ) The 2003 Ford Taurus owners manual shows ( .052 - .056 inch ) for the 3.0 L - DOHC - V6
The 2003 Ford Taurus has a 3.0 L base engine size.
The 2003 Ford Taurus's engine produces 155 hp @ 4900 rpm.
The 2003 Ford Taurus's engine produces 185 ft-lbs. @ 3950 rpm.
The spark plug gap, for your 2004 Ford Taurus 3.0 liter engine, is .009. Most spark plugs will come pre-gapped.
According to the 2003 Ford Taurus Owner Guide ( 5W-20 )
The spark plug gap for a 1990 Ford Taurus 3.0L engine should be set at .044 inches. A 4.2 liter engine would have a gap between .052 and .056 inches.
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
On your 2003 Ford Taurus : The torque converter is INSIDE the bell housing of your automatic transaxle ( transmission ) where the transaxle is bolted to the " rear " of the engine
0.044 Autolite-Platinum / Spark PlugFor your 2001 Ford Taurus 3.0L EFI 6cyl Part Number: AP764
With a socket set :)