Question about 2003 Jaguar S-Type

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I wany to know everything about changing the spark plugs on a2002 jaguar s 4.0

I cant even find the spark plugs by looking at the engine ,how do igo about changing the plugs without messing anything up?

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What is the gap for spark plugs on 2003 stype 2.5 v6

Posted on Sep 10, 2008

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How do i seat the oops timing to the spark plugs


hello Stu
no engine options stated, there are 4 engines. we cant guess that.
all 4 spark plugs dead, ?????????????????????????????????????
we next use a scan tool,
plug it in, get comms.
then crank for 5 seconds,
release key.
then see why there is no spark (ecu cuts fuel if spark is missing)
use any scan tool.
Generic for all EFI cars made.
if all you want to do is guess. then nobody can help. you.
here is a short list
1: bad fuse (looks good but is not) 0v on one side. key on.
2: bad connections in the EFI system (spark related)
3: bad ECU, (nah) (I repair them)
4;bad coil
5: bad ignitor to coil.
6: bad CMP (cam sensor)
7; bad CKP sensor (if separate from CMP) depends on engine used.
8: bad wiring to any of above. bad connectors to any of above.


learn to use a scan tool and win over 90% of the time,
working spark or injector or A/T transmissions.
on 2006 and newer cars, even more true.
on newer cars the scanner can even tell you the fuse is blown
even though the mech thinks its good.
some fuse have hair line cracks, that cant be seen.

the Scan tool does report bad sensors, if you just look.
at all times !!!

Apr 10, 2015 | 2006 Suzuki Forenza

1 Answer

Currently have a Jaguar 2003 S Type. I changed all the spark plugs, gaskets, all 4 H2O sensors, PCV, Mass Air Flow Sensor, and Throttle Body; but I still get Restrictive Performance at 3000 RPM and the...


You might have bad connection in wire harness, Wiggle the wires while reving the engine. Do this at night to see any sparks in the dark. Look for sparks around the Spark coil. You may need new coil.

Dec 21, 2014 | 2003 Jaguar S-Type

1 Answer

1994 jaguar xjs 4.0. cylinders 3 and 4 have spark but are not working. If i pull the plug wire on these cylinders with engine running , there is no change.


hate to tell you this but it sounds like a bad or cracked coil.
take a look and see,sometimes the cracks are internal check for spark at the coil array if no spark from there theres your problem.High heat causes these type of coil systems to fail.
if you need a new one try "autopartswharehouse.com" or parts geek.com they have hard to find import parts at really good prices.good luck,Gary

Oct 28, 2013 | 1994 Jaguar XJ6

1 Answer

Changing spark plugs


You most likely have a big cover over the engine that is covering everything up. If you can get that off (sorry, I've never removed one) you should be able to see the plug wires/coil on plugs, whichever the vehicle has. 4 or either 6 depending on the number of cylinders. You may just see black rubber looking caps. Plugs are under them.

Mar 18, 2010 | 2001 Hyundai Santa Fe

2 Answers

Misfire Cylinder 4. Tried everything. Code still returns. HELP~!


Well I know that the 2.4 is known for blowing head gaskets and we here at a used car dealer avoid any of the cars with those engines in them.I would run a compresion check on all the cylinders and make sure they all run really close to even across all the cylinders.

Feb 09, 2010 | 2001 Dodge Caravan

1 Answer

How do i change the spark plugs on a 2002 jaguar s-type v8 i cant locate where they are? i pulled off what i thought was it and it looks like some kind of injector of some sort but i cant see the plugs...


The the injector are hook up to a fuel rail, the coil pack's and you have 8 on them sit almost next to the fuel injector's, the coil pack's are held on with a 8mm bolt, there round looking on top about 2" in dim. with a clip on connector, remove small bolt pull up on coil pack, coil pack will have a boot at the end, down in that hole will be the spark plug's, no rail or tube will be hooked to the coil pack, just the harness.Spark plug gap .50, but if your using Platinun +2 or +4 not adjustable. Hope this was very helpful.

Jan 19, 2010 | 2002 Jaguar S-Type

1 Answer

Plug wires to distributor rotor


Hello Macstff ;

1985 jaguar xj6 4.2 L Series 3
Firing Order 1-5-3-6-2-4
# 1 Spark plug at the last cylinder next to the firewall .
# 6 Spark plug at the front of th Engine nearest the fan .

The Rotation of the Rotor within the distributor cap is " Counter Clockwise

The Vacuun Advance Diaghram ( metal ) is more in line with the # 3 Spark plug wire .

Looking from the top near the Passenger side fender . If we know that the Number 3 Plug is more inline with the vacuum advance then moving " clockwise the next plug would be the # 5 and after that would be the # 1 plug

This shold get you on your way providing that nothing else has been tampered with . I hope that this has been helpful to you .

May 05, 2009 | 1986 Jaguar XJ6

1 Answer

Spark Plug Replacement


they could be individual coil packs on the top of the engine,,remove them to see the plugs,,,their are no leads on this kind of set up,,,,

Apr 23, 2009 | 2000 Hyundai Sonata

3 Answers

Problem with 95 jag XJ6


Had this problem before and found it to be the crankshaft sensor. This would be cheaper fix than the Lambda sensors.

Jul 25, 2008 | 1995 Jaguar XJ6

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