How do you change the spark plugs in a 2003 Jaguar X-type?

Answer 1

I am no mechanic, but I was able to change the spark plugs off my 2003 V6 Jaguar X-Type. Replace spark plugs every 100k miles. The gap for plugs is .5. If you ask a parts person at a local auto parts place, they will tell you that the spark plug gap is not listed in their computer system. The spark plug gap for all vehicles may be found in a manufacture catalog, such as Auto Lite or Champion. Ask the local auto parts people not to be lazy and look in their catalogs.

The Spark plugs are located under the manifold. You will need to remove the top manifold. Sounds easy, but there is a lot of work involved just to get to that point. My suggestion is to go to a Jaguar dealership (parts department) and ask them to print you a diagram of the engine intake manifold and air filter assembly. The printed diagram displays where all the screws are and its free.

Steps (off the top off my head)

Remove Battery (not needed, but it may give you more room.

Remove the air filter assembly from the intake manifold.

Remove the engine oil cap and remove the plastic engine cover. It has 3 screws.

Screw back the engine oil filter (just remember to remove it again when you screw back the engine cover)

Unplug electrical connectors that are plugged into the upper manifold. Careful, the plastic on the connectors may be dried out and possible crack if you use brute force.

Remove the mounting bolts for the upper intake manifold. There are 3 on the manifold sides. one on left, back, and right. If you are trying to remove the upper manifold and its not removing off, then its because there is still a screw holding it from the side.

Remove the top 8 screws holding the top engine manifold.

Remove the upper manifold and move it to the side.

Now you have access to the spark plugs. Try not to lose any screws. If you lose screws, take a different screw to Home Depot, Lowes, or an Auto parts store and see if they can match it. Make sure you tell them that it needs to be a machine screw and able to withstand heat.

Good Luck. It took me a long time to find this answer when I did my own tune up. Remember, the diagram displays where all the screws are.