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What's the resistance specification for the coil on a 1968 jaguar s type?

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Posted on Jan 02, 2017

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SOURCE: Missfire on number 3 coil on 2001 S type Jaguar 3.0 V6 Sport

Check the igniter module.
I assume you have a ecu code telling you #3 coil is missfiring ?
If so also check the crankshaft angle sensor .
If it is not an error code do a compression test and check the injector.
Hope this helps
Regards
George

Posted on Jul 08, 2009

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SOURCE: how can you test the spark plug coils, what is the

Dear Pablo,
You can check the input voltage at each coil. This way you make sure you have the proper amount to operate. Disconnect the six ignition coil connections. Turn the ignition key on. Check the voltage at Cyl #1 B/Y wire, Cyl#2 B/U wire,Cyl #3 B/O, Cyl#4 B/G, Cyl#5 B/R, Cyl#6 B/W and ground. It should be 10.5V or higher. If not,you need to find the cause of the voltage drop.
If ok, you can test the resistance of each coil. At the coil,measure the resistance across the primary windings.It should measure between 0.50 Ohms ans 1.00 Ohms.
I hope this information is helpful.If you need anything else,don't hesitate to ask. Thanks,Chuck.

Posted on Jan 02, 2010

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When i start my car in the morning it shakes real bad and cuts off and putt putt but once it warm it runs good. plus check engine light is on


you need to find someone with a obd11 code reader to extract the fault codes that will give you clue where to look for the fault. if its a v6 petrol they have problems with ignition coils and/or spark plugs, the spark plug resistance on the centre electrode goes high and can upset the onplug coil and give those symptoms'

Mar 12, 2014 | 2003 Jaguar S-Type

1 Answer

1998 Jaguar wont rev past 4000 rpm


Check the spark plugs are the exact recommended specification.
I have just replaced the plugs and coils on my 1996 Jag, and when I accelerated hard, the engine would shut off at 4000 revs, the engine check light would com on briefly and the tacho would jump about. Long story short, the recommended plugs were (NGK) BCPR6ES ( R for resistance), I put in BCP6ES (no resistance). When I put the old plugs back in, it was back to normal, when I stepped on kittys tail, it got angry real fast all the way to red line! Resistance spark plugs were originally to suppress electrical interference on the radio, modern engines also need to suppress electrical interference to the engine management system.
http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqresistor.asp?mode=nml

Oct 20, 2012 | 1998 Jaguar XJ8L

1 Answer

P0354 Ignition Coil D Primary/Secondary Circuit Malfunction This is what the scantool came up with on my 2001 Jaguar s-type 3.0 Car has been idling funny but will get cruising on the highway.


this code is saying you have a failing ignition coil..You will have to swap them and determine which one is failing...here is the procedure.. DTC P0354; RANDOM MISFIRE DETECTED, MISFIRE DETECTED, (CYLINDERS 1-8) IGNITION COIL PRIMARY CIRCUIT MALFUNCTION, (CYLINDERS 1-8)

G290076t1 : CHECK COIL FUNCTION BY SUBSTITUTION
  1. Swap the suspect coil for a known good unit.
  2. CLEAR the DTC. TEST the system for normal operation.
- Does the same DTC reoccur? The DTC will indicate if the same cylinder is misfiring. -> Yes
INSTALL a new coil. CLEAR the DTC. TEST the system for normal operation.

-> No

G290076t2 : CHECK THE IGNITION COIL SUPPLY VOLTAGE CIRCUIT
  1. Disconnect the relevant ignition coil electrical connector(s), (PI02 to PI09).
  2. Turn the ignition switch to the ON position.
  3. Make sure the ignition relay is energised.
  4. Measure the voltage between:
- Is the resistance greater than 5 ohms? -> Yes
REPAIR the high resistance circuit. CLEAR the DTCs. TEST the system for normal operation.

Sep 19, 2011 | 2001 Jaguar S-Type

1 Answer

I feel a misfire but there no codes stored on the ecm


More than likely you need new spark plugs, or you have a bad Coil on plug. To test each coil on plug, read the following:
  • A commercial coil tester, available from many tool suppliers, is an excellent way to test suspect coils. If the coil can generate a spark on the tester, the coil should be in good condition.
  • An ohm meter can also be used to test coil winding resistance. Primary-side resistance, from coil minus to coil plus, is typically between 0.3 and 1.0 ohm on electronic ignition type coils.
  • Secondary resistance values vary widely, so consult a specifications chart for the engine you are servicing. If a spec chart isn't available, compare secondary readings among all the coils to see if any one is higher than the others. A high resistance indicates deterioration in the wiring. Surprisingly, a coil with high resistance may still fire the spark plug, but the voltage produced will be higher because the current must jump the open wiring in addition to jumping the spark plug gap.

Jun 02, 2011 | 1999 Lincoln Navigator

1 Answer

Engine missfire


Get your local garage to put a scanner on the car. The early s-type used to suffer from ignition coil faults. If a fault has been hinted towards a specific coil then swap to a different cylinder and see if the fault follows wich will indicate a coil fault.

Has the vehicle had its spark plugs changed? every 70.000 miles as they tend to fail if left unchanged. Intake manifold requires removing to replace bank 1 plugs.

Also check the small rubber elbow on the end of the plastic beather pipe wich runs throught the intake manifold branches. Elbow is located at the rear of the engine

Hope that helps

Feb 20, 2010 | 2000 Jaguar S-Type

2 Answers

How can you test the spark plug coils, what is the resistance specs on spark plugs ignition coil for a jaguar 2000 s type V6. 3.0L


Dear Pablo,
You can check the input voltage at each coil. This way you make sure you have the proper amount to operate. Disconnect the six ignition coil connections. Turn the ignition key on. Check the voltage at Cyl #1 B/Y wire, Cyl#2 B/U wire,Cyl #3 B/O, Cyl#4 B/G, Cyl#5 B/R, Cyl#6 B/W and ground. It should be 10.5V or higher. If not,you need to find the cause of the voltage drop.
If ok, you can test the resistance of each coil. At the coil,measure the resistance across the primary windings.It should measure between 0.50 Ohms ans 1.00 Ohms.
I hope this information is helpful.If you need anything else,don't hesitate to ask. Thanks,Chuck.

Jan 02, 2010 | 2000 Jaguar S-Type

3 Answers

2004 jaguar x type saloon towbar fitment.


You will have to get a factory approved kit . Any modification to the lighting system will interfere with the Bulb faifure warning as the wattages and resistances will be altered outside the normal Jaguar settings. There is designated kits for these types of electrical systems from quality tow bar makers .......

Oct 07, 2009 | 2003 Jaguar X-Type

4 Answers

I have a 2001 Mercury Sable the check engine light is on it also blinks at times. I have done a oil change also air filter and oil filter checked the spark plugs and replace an air flow hose the engine...


First I recommend you get an auto repair/maintence manual for about 20.00. by Chilton or Haynes then check trouble codes for your sable, this manual is reasonable and will aid you in any further and future repairs. this manual is the type I use, I work on or vehicles-( shady tree mechanic)

Jul 11, 2009 | 2001 Mercury Sable

1 Answer

1968 Jaguar E type Carb problem


notorious for being very hard to time both carbs ..sim. probs.haunt many multi carb . set ups just ask any one with old triumphs .if carbs have never been rebuilt i think it might be time .if they have it might be time to replace .if replacing try finding ones with a fule management system.

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