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When I place my finger on top of the spark plug lead of the second cylinder from front of vehicle, I feel a metallic click.

I do not feel anything on the other three plug leads, engine runs great and has no noticeable valve chatter

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  • Cars & Trucks Master
  • 603 Answers

It may be time to change the spark plug wires. That click could be a leak in the spark plug wire, that could be causing a miss when you drive. You are lucky that you didn't get ZAPPED with the high voltage coming from the coil. Maybe you were wearing a good pair of sneakers that insolated you. Be careful. GOOD LUCK FRIEND.

Posted on Nov 17, 2014


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Posted on Jan 02, 2017

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SOURCE: alfa

well it may run and all but it could be mis-firing and would degrade performance. I would make sure to put all the wires on in the correct order.If it runs fine, then it might all be on right after all but if any are in the wrong place, you would notice but not to much considering it is a four cylinder, sometimes you never notice a mis-firing cylinder. Point being is the wires do need to be in the right order for the car to run smooth and correct. Hope this helps.

Posted on Jul 27, 2008

  • 404 Answers

SOURCE: 1993 nh pajero 3 LTR running on 5 CYL

Hi Roy,
You say you have compression? is it well within the range of the other cylinders? if it is i.e. around 100 psi then possible bent or sticking valve? although you have a spark when plug earthed out of head is there possibly some foreign matter isolating the plug or is it the plug itself breaking/tracking down when in situe?
Failing all these, try a small amount of fuel direct into the cylinder to see if it fires briefly (Not too much just a couple of mls)
Maybe possible Head gasket failure? (I doubt it as all other cyls fine)
Can't think of anything else I would try,
Hope this helps!
Paul 'W'

Posted on Jan 13, 2009

  • 450 Answers

SOURCE: Not starting after replacing plugs and leads

This type of distributorless ignition system uses a “waste spark” method of spark distribution. Each cylinder is paired with the cylinder that is opposite it (1-4 or 2-3). Look closely next to towers on coil pack assembly they are numbered.

Posted on Jun 15, 2009

  • 541 Answers

SOURCE: engine compression low on three cylinders, what

yes a head gasket failure cancause this. spary oil, wd-40 into those 3 cyc;lindersand see if cmpression increases. if it does you need rings. if it does not you need a head gasket.

Posted on Jan 02, 2010

  • 14585 Answers

SOURCE: Mazda Eunos 500 - Engine lacks power -

when you change the wires did it bring back the dead cylinder? If not check the resistance on that injector it should read 11 to 15 ohms, check another injector to see specific ohms they should be close if not exact.

Posted on Jun 14, 2010

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Try to see if you can get view the are where the plugs are firing in the dark. Check for arcing off the plug or wires to the metal engine parts. I fought with a vehicle for days trying to determine a misfire problem on a car that we just put new plugs, wires, and coils on. Turns out the ceramic insulator on one of the BRAND NEW plugs had a hairline crack down the length of the insulator. You could not see if with the naked eye, but you could feel it if you ran your finger over it. Easiest to find if you can run the engine in a dark garage.

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From the front of the car, #1 is the closest cylinder on your right.
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My 1984 F-150, inline six, is missing badly. I thought I might have mixed up the wire sequence. I checked the order in the manual and the sequence was different than on my engine. When I switched the...

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for an inline 6 cylinder
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