I have a couple of random misfire codes on my 2003 S-type with a 3.0 V6. Looks like I need to change the plugs and coils, right? (105,000 miles) Can anybody tell me what I need to buy to complete the job? Don't I need to remove the intake to access the plugs and coils? Will I need intake gaskets? Any others? Where's the best place to buy the parts? I was thinking www.rockauto.com. Which coil packs to buy? They list a bunch of 'em.

Thanks in advance!

"EZ"

 

I am doing this, this weekend. I found the best place to buy was Rock Auto. Below are the parts that I bought for my Jag:

Spark Plugs (Iridium) x6
Ignition coils x 6 (part # uf435). <=== you don't have to buy this one, but make sure it is 4 wire plug.
Upper intake Gasket - Fel-Pro MS96494
Lower intake Gasket - Fel-Pro MS96485
Fuel filter - Fram G8018 (if you have never done so)

Also,

IMT O-Rings

Also see this thread for additional info:

https://www.jaguarforums.com/forum/s...tenance-49309/

Hope this helps.

 

I would purchase a set of valve cover gaskets as well, you will thank me later!.
If you do not use them just return them (maybe go local on those).


BTW I recognise that link

 

Thanks for the responses guys. I didn't want to get half way through the job only to find out I was missing a gasket or something I needed.

Quick question............what are the IMT o-rings? Where do they go?

Thanks in advance!

 

Taken from the FAQ post, lots of good info there!

https://www.jaguarforums.com/forum/s...ics-faq-32135/

https://www.jaguarforums.com/forum/s...ck-pics-49214/

 

Thanks again!

 

www.rockauto.com only lists the lower intake manifold gaskets. Are the upper intake manifold gaskets called something else? Anybody have another source besides Jaguar?

Thanks.

 

Never mind. I see the upper gaskets are called the PLENUM gasket and are listed in the air/fuel section, not the engine section on the rock auto website.

 

Just completed IMT O-Ring, upper intake gasket (Fel-Pro MS96494), lower intake gasket (Fel-Pro MS96485) and spark plug (Bosch 4Plus) replacements on a 03 S-type; the information provided in this thread was invaluable.

 

Well more importantly? How is the car running?? Did you improve it?
.
.
.

 

Jag is purring like a kitten...best part is that there is no more oil leak from the flat IMT O-Rings. I have a K&N air filter coming in the mail and that should round out my tune up and repair job. In total I replaced a shot rear hub bearing, both sides of my front upper and lower ball joints, put new Michelin Pilot MXM4s, and the other items I previously mentioned.