Question about 2003 Ford Expedition

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How replace coil packs and spark plugs - 2003 Ford Expedition

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I have a 2003 Ford Expedition and I have replaced all the spark plugs during a tune up about 5 months ago and 1 coil. Now the car is dying out and is not accelerating at times. Any suggestions on what it could be?

Posted on Jul 26, 2011

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Replace the plugs and wires (one at a time) to avoid getting the firing order out of sequence. The coil pack the same way. Most of these have clips on the side or either bolts that hold them on. If you do one at a time you'll have no problems.

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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SOURCE: cobalt no spark

I was going to say crank sensor, but you changed it. What have you done to it latley? Or did this just start? I kinda want to say PCM for some reason. Any welding done on the car latley?

Posted on Feb 26, 2009

  • 73 Answers

SOURCE: 1994 pontiac transport se not firing in first coil pack at idle

ARE YOU CHEKING SPARK OFF THE COIL TOWER OR AT THE SPARK PLUG END OF THE WIRE SOUNDS LIKE YO HAVE A BAD WIRE

Posted on Apr 24, 2009

honeymokey
  • 3113 Answers

SOURCE: No spark from new coil pack

Crank sensor!

Posted on May 16, 2009

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SOURCE: need a diagram of the firing order of spark plug wires from coil packs to spark plugs

FROM LEFT TO RIGHT, 5/2 3/6 4/1. ASSUMING YOU HAVE THE 3.1L ENGINE.

Posted on May 31, 2009

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SOURCE: please help

had the same problem in mine we found it was the cam shaft positioning sensor. my van had shut off and we had no current to plugs and at first thought coil pack but still nothing. no power to coil pack. then found sensor no good. also we replaced the sensor with an after market sensor and worked fine for couple months then started to shut off again. after a little research found we needed original cam shaft pos sen from dealer and since then no problems. hope this works for you.

Posted on Jun 20, 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.

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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.

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How to replace spark plugs in a Toyota Yaris sedan


Your car has four coil packs, coil packs set on top of valvr cover, remove bolt that holds coil pack, pull coil pack out, and with extension and spark plug socket remove spark plug, do the same with all.Hope this was very helpful.

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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.

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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.

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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

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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

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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.

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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.

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