In the engine.
remove the coil packs on top the engine with a small tork bit then change plugs
first you need to state what liter the engine is.
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 )
On a Ford Excursion ( if it has a gasoline engine ) ( 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
You will need to remove the spark plug wires on your Chevrolet 3.1 liter engine. Remove the spark plugs with a 5/8 deep well socket. Turn the socket to the left. The spark plugs will come out. Reverse the process to install the new spark plugs.
Dealer service item.
i had trouble finding them on my 2003 wrangler as well... if they are in the same spot as mine, look on the passenger side of the engine. there is a cover that requires a 13mm socket to remove the bolts. (at least it does on the '03) it covers the spark plugs. it sits on top of the engine in the same location that the injector rail does on the driver's side. and good luck.
No, diesels dont have spark plugs
1.8 liter engine is 4 spark plugs
In a 2006 Ford Fusion , gasoline engines : The 2.3 liter four cylinder engine has ( 4 spark plugs ) The 3.0 liter V6 engine has ( 6 spark plugs )