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Only spark on number one and four sprakplugs - Grand Voyager Plymouth Cars & Trucks

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  • Anonymous Dec 11, 2008

    REPLACED EVERYTHING NEW ELECTRICAL UNDER THE HOOD--STILL NOW SPARK--EVEN PUT SPARKPLUG WIRE IN MY MOUTH AND HAD KEY TURNED OVER STILL NO SPARK

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  • 743 Answers

Number 2 & 3 coil is bad.

Posted on Feb 07, 2010

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2004 chrysler van 3.8 motor replaced coil pack still doesnt fire number 4 cylinder


If the coil pack has a four wire connector, one wire is primary voltage, the other three wires are ground, one ground for each coil, one coil fires two spark plugs. If problem with coil or ground, you would lose spark for two spark plugs. Did you visually check for spark, everywhere? What about the spark plug wire or the spark plug, itself?

Oct 18, 2016 | 2004 Chrysler Town & Country

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COIL PACK WIRING DIAGRAM


The coil pack wiring is relatively straightforward though the exact wiring, colours and suchlike will vary a little from car to car.

A 4 cylinder engine will have a coilpack containing four individual ignition coils - one for each cylinder, but they are likely to be wired as if there is only two. This is to simplify the wiring and to cut a little unnecessary complication from the ECU.
Effectively those four coils are two pairs of coils - the primary windings of coils one and four are wired in series and similarly the primary windings of coils two and three.

When cylinder number one fires a spark is also generated by coil number four but causes no effect as that cylinder is at the top of the exhause stroke. This is called the wasted spark principle.

The same effect can be obtained by using a single coil per two cylinders of a type which has a single secondary winding which is completely isolated or not grounded in any way. One end feeds one spark plug and the other end is also terminated in a spark plug wire and terminal.

This simplification means the coil pack (4 cylinder example) is fed by only three or four wires (usually four).

I hope this helps.

Feb 20, 2016 | Cars & Trucks

1 Answer

No spark on number four plug


Have you ever replaced the spark plugs and wires? How many miles? Are the wires secure on the plugs and the coils?

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My ford focuskeeps missing if sparks on 12 AND 3 BUT NO SPARK ON 4 CHANGED PLUGS AND LEADS CAN YOU HELP PLEASE


This has a coil pack and four spark plug wires, correct? If so and you have replaced the spark plug wires and you don't have any spark out number four but you have spark on number one than you have a bad coil. You can remove the number four wire from the coil start the engine. Use. Test light connected to ground and place it near the opening in the coil that the spark plug wire goes into. You should see a sharp strong snappy spark. You may find that you have to hold the test light really close to the metal part inside the oil tower to see any spark. If this is the case you have a bad coil. Be careful when checking for spark. There is between 30 - 40 thousand volts generated but the merge is extremely low. If you get zapped it's going to tickle. Bit but it won't kill you. Good luck and let me know what you find.

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My 2002 chevy trailblazer won't go over 3500 rpm it idle rough when in gear with brakes applied


fuel mix? new fuel filter? throttle body injection? gasket to it OK? (there have been issues). cheaper grade spark plugs? just listing most common causes of rough idle complaint. also try manually cleaning throttle plate and tweaking up throttle angle screw (aka minimum air rate adjustment)

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How many spark plugs do a 2000 dodge caravan have


If it's a four cylinder it has four spark plugs.
If it's a six cylinder (V-6) then it has six spark plugs.
Hope this was very helpful.

Dec 23, 2009 | 2000 Dodge Caravan

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P0304* Cylinder #4 Misfire on a 1999 dodge intrepid. were is this cylinder located.


This would be the forth cylinder from the front(where the pulleys,and belts are).There will be a coil,and under the coil,is a boot,connected to the spark plug.The miss fire could be any,of the three.I would replace the spark plugs (all four)and the boots.Then if the miss fire is still there,replace the coil,on number four cylinder.

Dec 08, 2009 | 1999 Dodge Intrepid

1 Answer

How do i plug in the spark plug coils? what order?


If it's the four cyl., the first coil pack bolts over the #2 spark plug. The #2 coil pack wire plugs into #3 spark plug. The number two coil pack bolts directly over the number four spark plug, and the #2 coil pack wire plugs into the #4 plug. The firing order is 1-4-2-3.

Jun 30, 2009 | 2000 Mazda Protege

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