Question about 2003 Mitsubishi Eclipse Coupe

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No spark to the spark plugs just replaced the coil pack

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Replace the spark plugs and cables also, but mainly the coil pack ignitor. Also check or replace the camshaft position sensor which is most likely the culprit.

Posted on May 24, 2009

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Spark plug replacement on a 2006 jeep wrangler 4.0L


Replacing Spark Plugs Jeep 4 0L

Easy job. Remove bolts holding coil pack. Disconnect Plug from Coil Pack. Remove sparkplugs. Check Gap on new plugs. Install them and put the coil pack back on. Just did it myself last weekend.

Sep 02, 2013 | 2006 Jeep Wrangler 4.0

2 Answers

I was driving and it just died,we now found we do not have any spark on driver side,can you tell me what it may be,or what we should try to fit it.it will not turn over.Thank you sherry


No spark.This is indication of faulty spark plugs.But spark plugs get power to spark from coil pack. So get the connection between coil pack to spark plugs checked.If it checked out ok then its faulty spark plugs that has to be replaced,but if coil pack has no power then its faulty coil pack that has to be replaced.But if coil pack and spark plugs both checked out ok then this problem is fuel related problem.In this case the fuel pressure needs to be checked.The fuel pressure can be easily checked at any local car garage.If its low then its faulty fuel pump as well as clogged fuel filter,which has to be replaced. The voltage for spark plugs and coil pack in voltmeter will show 12 volts.Its a 12 volt part.If there is no or low volt then there is problem with the part. ------------------ Keep updated with any more queries.Thanks.

Oct 18, 2010 | 1998 GMC Jimmy

1 Answer

Ok I have 2002 Jeep Grand Cherokee, I have replaced the spark plugs and the coil rail but still getting the code P0351 and I was wondering if this could be caused by some kind of sensor?


The code indicates the coil pack or spark plug is malfunctioning. You can test this using an additional person. by removing the coil pack and spark plug, place the spark plug into the coil pack and ground the tang on the spark plug to the engine. Have someone start the engine and watch for a blue spark. if there is no spark, then the coil pack is malfunctioning. There is also ways to check the coil packs using a multimeter.

also, bee sure you didnt crack the ceramic part of the plug during initial installation.

Aug 01, 2010 | 2002 Jeep Grand Cherokee

2 Answers

How to replace spark plugs on 2000 jeep cherokee classic 6 cyl.? Also does 2000 cherokee have inline fuel filter?


TO REPLACE SPARK PLUGS YOU REMOVE COIL PACK MOUNTING BOLTS THEN REMOVE THE COIL PACK WITH BOOT OVER THE SPARK PLUG.YOU HAVE 6 INDIVIDUAL COIL PACK TO EACH CYLINDER. YOU NEED A 3/8 RATCHET WRENCH - LONG 3/8 EXTENSION -SPARK PLUG SOCKET - SPARK PLUG GAUGE.AND TORQUE WRENCH.THE 2000 MODEL JEEPS FUEL FILTER INSIDE THE TANK.1993 - 1996 MODEL JEEPS FUEL FILTER LOCATED LEFT SIDE OF THE VECHICLE NEAR THE FUEL TANK.

Jul 20, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Dont know how to take master cylinder off to replace coil pack


You shouldn't have to remove it....here are the steps from the tech manual:

Removal & Installation
  1. Disconnect the negative battery cable.
  2. Label and disconnect the spark plug wires from each of the coil pack towers.
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Ignition coil removal—2.4L engine

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Ignition coil removal—3.3L and 3.8L engines


  1. Disengage the electrical connector from the ignition coil pack.
  2. Remove the coil pack mounting fasteners.
  3. Remove the coil pack from the vehicle. If equipped, remove the coil pack from the mounting bracket.
To install:
  1. Place the coil pack into position on top of the engine valve cover, or mounting bracket, if equipped.
  2. Install and tighten the coil pack mounting fasteners to 9 ft. lbs. (12 Nm).
  3. Plug in the electrical connector to the ignition coil pack.
  4. Connect each spark plug wire to each corresponding coil pack tower. The coil pack towers are numbered with the correct cylinder identification. Be sure that the spark plug wires snap firmly onto each coil tower.
  5. Connect the negative battery cable.

Jan 18, 2010 | 2001 Chrysler Voyager

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

1 Answer

Not getting spark


Testing the coil packs.

1. Get an INSULATED wire and hook it to a ground on the car.
2. Get some one to help you
3. pull a spark plug wire off the coil
4. hold grounded wire close to, but not touching, the part where the spark plug wire connects
5. keep hands away from coil and have your helper turn the engine over ( start car and turn off)
6. if there was a spark between the wire and the coil pack it is good. if not, the coil pack needs replaced
7. replace the spark plug wire
8. test the rest

Apr 22, 2009 | 2003 Mitsubishi Galant

1 Answer

Changing spark plugs 2004 dodge intrepid


First off, on this model you don't have plug wires, you have coil packs with a boot and coil connected to the pack. The boot slides on the tops of the spark plug. The good thing about this is that you don't have to mark each wire to its location.

So to replace the plugs you need to disconnect the electrical connector to the coil pack and then unbolt the two bolts that mount the pack down, then remove the pack.

Next with a ratchet, an extension and a special spark plug socket, which has an insulator inside to protect the porcelain from getting cracked, remove the spark plugs.

Next step is to replace the plug, usually I slide off the boot from the coil pack and then remove the coil from inside the boot and slide the boot over the spark plug and start to thread the plug back in. Using this method allows to you feel if you are threading the plug in right. Then with a torque wrench you would torque the spark plug to the specs for the type of engine you have.

3.2/3.5L Engine (20 ft-lbs)
2.7L Engine (13 ft-lbs)

Next reinstall the coil pack with the two mounting bolts, it is only necessary to hand tigthen the two bolts. Then plug back in the electrical connector and continue this process on the next 5 spark plugs.

Apr 14, 2009 | 2004 Dodge Intrepid

2 Answers

Where is the coil pack located under the hood


Follow the spark plug wires away from the spark plugs. The coil packs are on top of the ignition module. The coil packs have two terminals each and will have two spark plug wires attached to each coil pack. There are 3 coil packs and I would recommend replacing all three at once. They are bolted down to the ignition module bracket with a total of 6 small screws. Two per coil pack. Remove the small screws and the electrical connectors and the plug wires. Dont forget to mark the wires so you can replace them as you found them. Installation is just the opposite of removal.

Jan 20, 2009 | 1995 Oldsmobile Cutlass Supreme

2 Answers

Location of sparks plugs


For Jeep Cherokees with a 4.0 engine; (if you are standing in front of the vehicle looking back at the engine compartment) the spark plugs are on the left side / the same side as your battery. What look like spark plugs on the right side of the engine are actually your fuel injectors. On the exact opposite side of the engine block, all 6 spark plugs are held in place with a long rectangular box (called a coil pack) that has 3 small raised boxes on it. The coil pack is the length of the engine block and about 1 1/2 wide. There are 4 large approx 1/2 bolts that hold this coil pack in place. There is a plug on the back end / closest to the fire wall where you can upplug this coil pack but I couldn't unplug it.
Simply, remove the 4 bolts holding the coil pack in place, lift the coil pack away from the engine block and the spark plugs are exposed. The boots that attach to the spark plugs are "fixed" in to the coil pack. Replace your spark plugs some type of using anti-sieze compound, adjust your gap, and torque to 19 lbs. NOTE: use dielectric grease on plug boots and coil pack ends of wires. can also be used on plug in bulbs.
The above answer is great but if they are platnum plugs dont bother setting gap because you usually don't get a spec anyways and you do more harm than good. The gap is preset.

Aug 19, 2008 | 2002 Jeep Grand Cherokee

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