That is a check engine light. It could be many things but it needs to be hooked to a diagnostic machine to determine what the problem is.
The 2005 Ford Taurus has a V6 engine.
The 2005 Ford Taurus has a 3.0 L base engine size.
The 2005 Ford Taurus's engine produces 153 hp @ 4900 rpm.
The 2005 Ford Taurus's engine produces 185 ft-lbs. @ 3950 rpm.
On a 2005 Ford Taurus : The 3.0 L " Vulcan " V6 engine has ( 1 timing CHAIN ) The 3.0 L " Duratec " V6 engine has ( 2 timing CHAINS )
The 2005 Ford Taurus Owner Guide shows to use ( 5W-20 engine oil ) * that would be all year *
Right rear corner of engine compartment.
How do i reset a service engine light on a 2005 gmc c6500 cat engine
With engine oil filter change : The 3.0 liter " Vulcan " V6 engine takes ( 4.5 quarts ) The 3.0 liter " Duratec " V6 engine takes ( 6.0 quarts ) According to the 2005 Ford Taurus Owner Guide
That is a warning light to "check your engine". Visit a mechanic and have them use a computer code reader to check for a trouble code. On a 2005 there is a good chance that you may have a bad sensor, such as an oxygen sensor.
Yes they are because the Taurus was redesigned in 2002, so the materials from te '99-'01 Taurus are mostly the same Just make sure you use the heads off of the same engine ie: 1996 Taurus 3.0 OHV will fit a 2005 Taurus 3.0 OHV but will not fit an OHC engine
The 2005 Ford Taurus has 12 valves.