XK8 / XKR ( X100 ) 1996 - 2006

Denso ignition coil age?

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Old May 14, 2023 | 01:46 PM
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Default Denso ignition coil age?

On my 1997 XK8 (convertible,) is there any way to tell from the photo, what the age of these ignition coils might be?



I'm attempting to determine if they have ever been changed under previous ownership, and if not, I'm considering replacements. But I would rather keep these Denso's if they're not too old.

There are no running symptoms, perhaps a slight miss here or there, but nothing major. I do have an unrelated crank/no-start "engine fault" I'm chasing down, but I noticed these in the process of my work and just wondered about them.

Thanks in advance,
-Jim
 
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Old May 15, 2023 | 01:00 AM
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02/97 its there on the label.....Just carry a spare coil. Its more important to check you have no oil or water in the plug wells ...remove coil ,blow out with compressed air ..if you get water/oil you know what to do.
 
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Old May 15, 2023 | 03:45 AM
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Originally Posted by Pistnbroke
02/97 its there on the label
Are you sure about that?

I have a 2002 PCM with a label MB079700-etc and it's hard to believe it was kept for 5 years before the car was made by Jaguar.

I've another which is MB279700-etc so that was from 27/97?

And another from late 2005 but it's also MB079700-etc so Jaguar kept it 8 years before fitting it to a new car?

Sorry, I don't think so.
 
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Old May 15, 2023 | 04:01 AM
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Well well how interesting.
 
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Old May 15, 2023 | 06:28 AM
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If I recall correctly, the 97 has two wire coils and they are no longer available.
 
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Old May 15, 2023 | 06:52 AM
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Thats correct 97 are two wire.
 
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Old May 16, 2023 | 05:07 AM
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Originally Posted by JagV8
Are you sure about that?

I have a 2002 PCM with a label MB079700-etc and it's hard to believe it was kept for 5 years before the car was made by Jaguar.

I've another which is MB279700-etc so that was from 27/97?

And another from late 2005 but it's also MB079700-etc so Jaguar kept it 8 years before fitting it to a new car?

Sorry, I don't think so.
I wouldn't be too sure. I just bought a master brake cylinder for a 1981 F-350 that was put into inventory 30 years ago. You should see the box. The part was immaculate but the box definitely looked that old, along with the dust on it. Both the parts man and me were thrilled, btw.
 
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Old May 16, 2023 | 05:39 AM
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Originally Posted by TGraves
I wouldn't be too sure. I just bought a master brake cylinder for a 1981 F-350 that was put into inventory 30 years ago. You should see the box. The part was immaculate but the box definitely looked that old, along with the dust on it. Both the parts man and me were thrilled, btw.
Several yrs ago I went to buy carburetor rebuild kit for a 1940 Ford and they had a brand new carburetor, New old stock still in the box, Worked great and boy was I happy.
 
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Old May 16, 2023 | 06:11 AM
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All the two pin denso coils seem to be labelled MB029700* and 4 pin MB099700*
It can't possibly be date related given the first cars rolled off the line in1996.
 
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Old May 16, 2023 | 08:01 AM
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Originally Posted by JACKP
Several yrs ago I went to buy carburetor rebuild kit for a 1940 Ford and they had a brand new carburetor, New old stock still in the box, Worked great and boy was I happy.
You all are reminding me of driving my 1983 Datsun Sentra a few years ago, the alt. went out on the interstate. Looked up the part with my phone, found an Advance Auto 30m away said they had it.

The clerk was laughing me out of the store when I told him what I needed, I insisted he check anyway... he came back down off the ladder like he'd seen a ghost, with a sun-faded, 30-ish year old box. So faded you could barely make out the part number ...
 
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Old May 17, 2023 | 04:57 AM
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I wonder if the 96 cars had a slightly different coil and Denso designed one for 97 onwards hence the number. Re designed again for the 4 wire version.
 
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Old May 17, 2023 | 01:10 PM
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Fyi, my 98 has 2 wire coils. Replacement available on Amazon.

John
 
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Old May 17, 2023 | 03:12 PM
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I bought my new denso's on rock auto when i replaced them
 
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Old May 17, 2023 | 03:15 PM
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Originally Posted by Timeisrelative
I bought my new denso's on rock auto when i replaced them
When was that? What year?

There are no Denso's to be found for my '97 XK8. Part of dwindling supply for these cars, I guess.
 
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Old May 17, 2023 | 03:59 PM
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Generics are available in both 2 and 4 pin, although you do get what you pay for.
Mine are 4 pin but l had around 3 coils all go in one hit so l purchased a set of 8 generics. I now run a mix of original and generics and carry a couple of originals as spares.
 
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Old May 17, 2023 | 06:23 PM
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Originally Posted by jim_63219
When was that? What year?

There are no Denso's to be found for my '97 XK8. Part of dwindling supply for these cars, I guess.
ok so time flies lol smh! Apparently it has been 2 1/2 years smh
 
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