Hello, I am new here. I need to change my intake manifold gaskets, I have a few questions.
Fel-pro vs OEM (dealer) do they matter? I ask because a few years ago I had to replace IMT gaskets, I bought fel-pro. Only lasted 6 months. I went to dealer and bought new ones, still in the car fixed the problem. I hate to believe that oem is far more better than fel-pro, I have been buying fel-pro for other cars for 20 yrs now, and never had an issue until that moment.

Does it really matter what brand of spark plugs I use? A few years back I put in new plugs on 1,3,5 cyl since one fouled, I used Bosch double platinum. Got engine light few days ago for P0300, P0301, P0303, and P0305, rough Idle on cold start!! So I replaced bosch with Bosch Iridium plugs 9606 and it ran even worst, better off with old plugs. I later found out intake manifold gaskets have a leak, I used MAF sensor cleaner near gaskets and it would rev up.

Since I have to do upper and lower gaskets, might as well do coils and plugs. Again, do brands matter, for plugs, gaskets, and coils??? I already bought Standard UF435 coils, any experiences with them? I hate to obsess with oem parts, but I do not want to do this job twice. Thanks

 

Welcome to the forums 2tonejag,

I've copied your Intro post to the S-Type forum for advice from members with the same model. Here's the direct link to it:
https://www.jaguarforums.com/forum/s...-plugs-253595/

Follow this link https://www.jaguarforums.com/forum/s...ed-v8-x200-15/ to the main S-Type forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for information on regular issues. You can also use the US Western Region forum by following this link https://www.jaguarforums.com/forum/us-western-38/ to find other members in your region.

Please read the guidance for new members ( https://www.jaguarforums.com/forum/n...ned-up-241802/ ) which answers many of the most frequent questions about getting started.

Enjoy the forums.

Graham

 

Hello,
Welcome to the forums from ElinorB.
(';')

 

Welcome aboard.

 

Welcome to the Forums.

 

From one S-type owner to another... Welcome. The S-type forum is populated with a very friendly group and contains a wealth of knowledge.

 

Welcome to the forum 2Tonejag,
Good to have you with us.
Enjoy the forum.

If you haven't done so already you should add your car details to your signature to help others to help you.

 

Welcome to the forums.

 

welcome to the forum - enjoy!!!