they are under the valve covers
That would depend on which engine you have in your 2003 Ford Excursion : The 7.3 liter diesel engine doesn't use any spark plugs The 5.4 liter V8 engine has ( 8 spark plugs ) The 6.8 liter V10 engine has ( 10 spark plugs )
That depends if you have a gasoline engine On a 2003 Ford F-250 if you have the 5.4 liter gasoline V8 engine it has ( 8 spark plugs ) If you have the 6.8 liter gasoline V10 engine it has ( 10 spark plugs ) If you have the 7.3 liter DIESEL engine it doesn't have any spark plugs
400000
5.4 liter - SOHC - V8 6.8 liter - SOHC - V10 6.0 liter diesel 7.3 liter diesel are the 4 engine choices in a 2003 Ford F-250
( 8 ) in the 4.6 liter and 5.4 liter V8 engines
In 2003, Ford introduced the 6.0-liter Power Stroke that replaced the 7.3-liter version.
1994-2003
6 probably
I was looking at motorcraft.com and found listings for the 7.3 L diesel from 1988 to 2003
no glow plugs
Unless your ford focus is a diesel your car does not have glow plugs.
The Ford 4.0 liter V6 engine has ( 6 spark plugs )