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Threads Tagged with
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Forum
Changing The Spark Plugs. HOW TO
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trosty
on Oct 21, 2013
Jan 26, 2026
10:22 AM
by
jrraab
61
84,511
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
Spark plug gap on 4.2 SC
Casper
on May 28, 2012
Apr 2, 2025
02:52 PM
by
Pete M
13
15,331
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
Spark plugs X300 4.0
biffta
on Jan 16, 2013
Mar 3, 2025
02:53 PM
by
96Vaden
13
4,875
XJ XJ6 / XJR6 ( X300 )
Tune up for 1998 XJ8 4.0
bodyworker49
on Jun 25, 2013
Apr 5, 2024
03:32 AM
by
GGG
6
7,127
US Western
2000 S-Type cranks, won't start
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Sal16
on Sep 30, 2012
Dec 9, 2022
09:19 PM
by
kr98664
71
47,634
S-Type / S type R Supercharged V8 ( X200 )
XJ8 Cranks but won't start!
xRobeSx
on Oct 18, 2012
Aug 18, 2022
12:40 PM
by
RandyS
19
52,485
XJ XJ8 / XJR ( X308 )
Champion Spark Plugs! NEVER AGAIN!!!!!
Steve274
on Feb 15, 2022
Feb 16, 2022
10:18 AM
by
Vee
8
1,406
XJ XJ6 / XJR6 ( X300 )
random no start....any ideas?
wickfordriver
on Dec 8, 2008
Feb 2, 2022
09:08 AM
by
S-Type Owner
8
1,850
S-Type / S type R Supercharged V8 ( X200 )
87 XJS turns but wont start
J_C_R
on Sep 30, 2012
Dec 11, 2021
08:23 PM
by
garethashenden
12
31,404
XJS ( X27 )
XJS V12 magneti marelli - no spark... checked everything...
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1
2
)
coindigger
on Jun 12, 2021
Aug 30, 2021
02:17 PM
by
FerrariGuy
38
11,951
XJS ( X27 )
Replace knock sensor and spark plugs project with pics (as requested) HOW TO
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blaydes99
on Oct 30, 2011
Aug 27, 2021
09:15 PM
by
Furmanator10
66
137,465
X-Type ( X400 )
oil in the spark plugs
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perezrp101
on Jun 6, 2009
Aug 5, 2021
10:58 AM
by
Alessandro Denitto
23
35,843
X-Type ( X400 )
How to change the spark plugs on an X350
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slmskrs
on Dec 6, 2013
Mar 12, 2021
10:47 AM
by
Wingrider
21
25,696
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
Spark Plugs - Opinions sought
dsetter
on May 27, 2013
Dec 4, 2020
04:01 AM
by
davidyun
5
3,676
XJS ( X27 )
1995 Jaguar XJ6 spark plugs
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jsanta
on Jan 21, 2014
Dec 4, 2020
03:48 AM
by
davidyun
28
29,470
XJ XJ6 / XJR6 ( X300 )
2000 XK8 - changing spark plugs
06aces
on May 5, 2012
Jul 17, 2020
02:55 AM
by
GGG
17
25,765
XK8 / XKR ( X100 )
FAQ: Fuel Trims Thoroughly Explained + a quiz!
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1
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H20boy
on Feb 1, 2011
Dec 8, 2019
09:18 AM
by
Aarcuda
32
36,105
General Tech Help
erratic spark - fuel pressure erratic
Jimmy Waldhalm
on Oct 17, 2019
Oct 20, 2019
01:22 PM
by
Jimmy Waldhalm
2
2,098
XJ40 ( XJ81 )
X-Type Jerking
DragonKat
on Nov 28, 2011
Mar 21, 2019
07:15 PM
by
Dell Gailey
7
23,302
X-Type ( X400 )
97 XJ6 L rough idle and shake on acceleration
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1
2
)
conradsgym
on Mar 13, 2012
Oct 22, 2018
04:08 PM
by
julandnic
34
40,364
XJ XJ6 / XJR6 ( X300 )
Spark Plug Change - How To?
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1
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)
09XFSuper
on May 29, 2012
Aug 23, 2018
10:29 AM
by
Brutal
31
50,044
XF and XFR ( X250 )
93 XJ6 won't start (sometimes)
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1
2
)
charliechang33
on Aug 10, 2010
Jul 5, 2018
08:42 PM
by
Don B
29
25,649
XJ40 ( XJ81 )
XKE sparkplugs
Executivekev
on Mar 12, 2012
Apr 8, 2018
07:29 PM
by
gtjoey
16
23,711
E type ( XK-E )
misfire codes on odd cylinders, restricted performance mode
nateman
on Nov 22, 2010
Mar 29, 2018
08:04 AM
by
Spanishlion
18
19,460
X-Type ( X400 )
How to verify spark AND how to test for fuel?
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1
2
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SteveLeighton
on Mar 12, 2018
Mar 25, 2018
02:10 PM
by
JagV8
38
5,435
S-Type / S type R Supercharged V8 ( X200 )
1976 XJ12, New home
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Debbiesidera
on Jul 10, 2014
Jan 9, 2018
09:35 PM
by
Rustyxjc
291
52,577
XJ6 & XJ12 Series I, II & III
Spark Plug Replacement - Help
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1
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3
)
RCSnyder
on Aug 14, 2011
Aug 7, 2017
08:44 AM
by
Box
42
40,643
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
86 XJ6 stalls at idle in gear
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1
2
)
mickh78
on Feb 1, 2012
Aug 3, 2017
05:34 PM
by
warrenjaguar
21
15,428
XJ6 & XJ12 Series I, II & III
Quick question - which are the best spark plugs for an XKR?
Frog
on Apr 9, 2012
Jul 2, 2017
09:20 AM
by
JagV8
18
23,150
XK8 / XKR ( X100 )
Has anyone used these plugs? Autolite XP3923 Xtreme Performance Iridium Spark Plug
David's XKR
on Jun 13, 2011
May 15, 2017
04:45 PM
by
Dr. D
6
7,507
XK8 / XKR ( X100 )
No crank. No fuel. No spark. No OBD2 code. DSC System / Gearbox / Transmission Fault
tpro123
on Aug 4, 2010
May 8, 2017
06:12 PM
by
Roncarne
14
8,583
X-Type ( X400 )
Spark Plug Myths re: 1999 XJ8 VDP FAQ
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ka1thm
on Mar 28, 2011
Apr 24, 2017
07:47 AM
by
Einhead
66
51,437
XJ XJ8 / XJR ( X308 )
03 x type will crank but wont start, help
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1
2
)
jamlaw125
on May 16, 2009
Apr 22, 2017
12:18 PM
by
Soleil One
27
74,526
X-Type ( X400 )
s type valve cover gasket
sinister s-type
on Jan 12, 2012
Mar 1, 2017
01:04 AM
by
docs427
8
14,183
S-Type / S type R Supercharged V8 ( X200 )
97 XK8 No Spark, No Transmission Interlock
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1
2
)
Truck Graphics
on Aug 7, 2015
Dec 21, 2016
02:10 PM
by
DevonDavid
37
7,255
XK8 / XKR ( X100 )
video on how to replace upper & lower gaskets on a xtype
magicjuan17
on Oct 25, 2012
Sep 30, 2016
02:37 AM
by
Andrew Fitch
7
5,247
New Member Area - Intro a MUST
2004 4.2 liter, what is the correct spark plug gap
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1
2
)
Clifsmith
on Sep 12, 2009
Aug 4, 2016
12:21 PM
by
rf69
25
27,633
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
spark plug gap?
04 xtype
on Oct 31, 2009
Mar 28, 2016
02:14 AM
by
GGG
12
27,646
X-Type ( X400 )
Stumped - no spark, only one injector pulse - Please help
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1
2
3
)
ftasux
on Mar 19, 2013
Feb 20, 2016
11:34 AM
by
OldSpanner
52
17,676
XK8 / XKR ( X100 )
2nd tensions DIY instruction "HOW TO"
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LedZepplin
on May 29, 2010
Nov 19, 2015
08:58 PM
by
64vette
142
60,577
XK8 / XKR ( X100 )
1990 xj6 wont start transmission light
joem725
on Nov 9, 2015
Nov 10, 2015
08:37 PM
by
Lawrence
6
2,750
XJ40 ( XJ81 )
Novice Jaguar owner with ignition problems!!! Please Help
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1
2
)
LSX fan
on Mar 16, 2012
May 20, 2015
09:03 AM
by
Katoh
20
28,434
XJS ( X27 )
Spark Plug light and dying when stopped
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1
2
)
AmberJaguar
on Mar 6, 2013
Apr 12, 2015
05:45 PM
by
AmberJaguar
21
3,138
XJ XJ6 / XJR6 ( X300 )
How To Change Spark Plugs - '03 XJ8
OldMike
on May 6, 2012
Jan 19, 2015
09:11 PM
by
49Markvman
14
29,952
XJ XJ8 / XJR ( X308 )
Help with 2005 Jaguar XJ8L spark plugs
Koranco
on Apr 7, 2013
Dec 25, 2014
07:49 PM
by
kbeachy
4
5,596
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
Help... Not sure how to get at the spark plugs on the drivers side
greg-05vdp
on Mar 10, 2013
Nov 19, 2014
03:06 PM
by
Blairware
17
3,994
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
1986 Jaguar xjs will not start!
starviolets43
on Nov 15, 2014
Nov 17, 2014
02:54 AM
by
Grant Francis
7
7,713
XJS ( X27 )
How difficult to change the spark plugs?
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1
2
3
)
sacrider
on May 5, 2010
Oct 31, 2014
08:31 AM
by
newbound7
40
44,837
XJS ( X27 )
NGK Spark plug question
yeldogt
on Mar 28, 2011
Sep 27, 2014
07:57 AM
by
mrfixit99
10
7,584
XJ XJ8 / XJR ( X308 )
1991 XJ6 Sovereign Wont start!
johnelvislara
on Feb 27, 2012
Aug 27, 2014
06:31 AM
by
Fraser Mitchell
11
13,277
XJ6 & XJ12 Series I, II & III
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