Can anyone give me a part number for the 2-wire harness plug going into the lower IMT on a 2005 s type 3.0 na? Brittle wires, one broke. need to splice in a new one. Is it special or is it a generic Auto Zone type plug?

 

Here is a link to the catalogue for the wiring connectors:

https://www.dropbox.com/scl/fi/rstz2...=4yud2xme&dl=0

You can find the connector needed by the number of cavities in the connector.

 

The knowledge you chaps have, and the willingness to share it, never ceases to amaze me. I take my hat of too you all.
I have my second S-Type now, and still don't know where to start.

 

If you do find the part number for that plug post back to help the next guy out. While that catalog is great and shows a ton of connectors. I have had trouble finding the exact one I needed.
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As illustrated by the post from [NBCat], a great place to start is documentation . . . owners manual, workshop manual, TSBs, parts catalogues, FAQs etc. Many are in Stickies; others in a myriad of threads and posts here. Effective if they are specific to your model, variant, powertrain etc.

Second step is to actually read them . . . something I overlooked at my peril at first some 60 years ago . . . and which I see others today falling into a similar trap. Not a put-down judgement; just an observation of how to do things logically and far simpler, and yes, ask away on JF . . . there is never a thing called a stoopid question. I know this because, after more than 5 decades of owning and maintaining dozens of Jaguars, there is so much that I'm still learning! Was it Albert the Great who observed that "only a fool keeps repeating the same mistake, yet expecting a different result?" I keep reminding myself that "only a first class fool thinks he knows it all!".

Third step, most importantly IMHO, is to apply your new knowledge by pulling out the spanners and following the steps logically. Even a really challenging project like a ground up restoration with full engine rebuild, is nothing more than a long list of small steps.

My first project was rebuilding a Moss manual gearbox. Reading up gave me how to proceed so the internals would not go SPROING as I pulled it apart. Laying in all the needle rollers was child's play when I followed the advice to lay them in hypoid EP grease . . . and yes, it all went together, cured the problem, and gave me a real sense of satisfaction.

Wiser now, I reckon there is a fourth step, and that is to share with others all that accumulated knowledge and experience . . . and that. along with friendships over a shared interest, is the real value of the Jaguar Forums.

Cheers and best wishes,

 

Follow up.....On this one I was able to locate a generic 2-wire universal connector that was a match from OReilly auto parts. It was about $50. Spliced in the wires and put it back together. All is good. as far as others and the S type.....I bought this 2005 brand new and I refuse to part with it for sentimental reasons. It's really just a spare car in the garage now and used when one of the regulars goes down. I have maintained it myself as needed with the help of this forum group, but I will say (as someone who has maintained cars and boats since the 1960's) this S type has been the most challenging. I have had it down as far as removing lower intake and doing injectors over the years. BUT....for the past 10 years I have chased lean codes to no avail and I struggle to get it to pass smog every other year in California. I have had ah ha moments when I found a hole in the air tube from filter to throttle body, maf sensors, fuel pump, fuel filters, imt rings, and on and on.....I may find a cure and get the codes off for a while, but out of nowhere the 0171 and 0174 will return. I currently have that situation and I can not find a reason for it. This car loves lean codes.

 

Have you checked (hot engine parked) whether the fuel trims are poor at idle but drop nicely if revved to about 2500?

If so, you do have an air leak.

Best way to find it is to watch STFTs as you spray cautiously around engine. A small-molecule gas is best so it can enter any cracks no matter how tiny.