Question about 2002 Chevrolet Tahoe

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Were is the electrical pick-up for the coil pack?

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At the front bottom of engine
crank sensor

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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1 Answer

2005 Mazda 6 coil pack replace


Unplug the coil pack spark plug wires and mark where they go for future reference, unplug the coil pack electrical connector and then remove the retaining screws that hold the coil pack to the engine. You never say engine type, V6 or 4Cyl.

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What can be the problem on a bmw 533i 1982 that it dosnt have spark from the coil?


NEXIQ 125032 USB Link Software Diesel Truck Diagnose Interface
Cracked coil packs show symptoms particularly during cold and wet weather when moisture has entered the engine compartment. Cracked coil packs can cause a rough-running engine or a misfire at idle. Moisture that sits in the crevice of a crack on the coil pack will allow a spark (arc) to travel the length of the crack until it reaches a ground source, where it will cause a direct short. Electrical sparks jumping from a crack in the coil pack case accompanied by a loud electrical clicking or snapping sound indicate a cracked coil pack.

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Im not getting spark to plugs from coil pack, i have replaced coil pack, plugs, and fuses and wires what next\


check for power to the coil pack check your electrical connections at the coil pack

Aug 31, 2012 | 1989 Chevrolet Beretta

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Mitsubishi magna 1994 2.6L no spark have replaced leads ditributor and coil pack?(centre lead runs to it..what next?


I had the same prob found out that it was the pick up unit in the distributor and not the coil pack this part is needed so the coil pack can charge first before it is discharged on the next fire....

Mar 22, 2011 | 1994 Mitsubishi Galant

1 Answer

I am trying to replace the igniyion coil but i dont know which one is bad


  • Unplug the spark plug wires from the coil and label the wires if necessary for proper installation.
  • 4 Unplug the pack's electrical connector and remove the coil pack from the engine, using a wrench or ratchet and socket if necessary. If your coil pack is mounted on the back of the engine, raise the front of the vehicle and safely support it on two jack stands to reach the coil pack from underneath the engine.
  • 5 Set your ohmmeter to the 20000 ohms range. Turn on your meter and touch the spark plug wire terminals on one of the coils with the meter leads. You may get a reading between 5000 to 15000 ohms, depending on your particular model. This checks the secondary resistance.
  • 6 Set your ohmmeter to the 10 ohms range, and touch the terminal B+ (usually the center prong on the coil pack electrical connector) with one of the meter test leads, and touch the corresponding coil prong on the electrical connector with the other test lead. You may get a reading between 0.3 and 1.0 or more, depending on your particular model. This checks the primary resistance on each coil.
  • 7 Repeat steps 6 and 7 for each coil in the pack assembly, and compare your resistance readings to the specifications given on your vehicle service manual (see "Tips"). If your readings are out of range, replace the coil or coils as necessary.


  • Read more: How to Check Coil Packs With a Voltage Meter ' eHow.com http://www.ehow.com/how_4912368_check-coil-packs-voltage-meter.html#ixzz13fJECvLx

    Oct 28, 2010 | 1997 Toyota Tercel

    1 Answer

    Coil pack only firing 2 cylenders


    I'd add the information on how to test the coil packs yourself to make it a more complete thread...

    QUOTE
    How to verify if your coil packs work!
    Engine worked with: 1996 maxima
    Requires: An ohmmeter (cheap purchase at radio shack....)
    Conditions: Make sure your engine is cold, or it'll be hot on your hands
    you have 6 Ignition coil packs. 3 up front and 3 near your firewall. (when asking for new ones, they are referred to as L and R)

    3 are hidden behind the plastic piece on your engine that says NISSAN... simply remove the bolts and remove the plastic piece.

    once removed, you should see 3 coil packs. un plug and test them one at a time.

    I won't go into how to remove them since it should be fairly obvious Simply remove both bolts (do one coil pack at a time...) and pull the coil pack out. i had one where it was very hard to get out... so you may have to pull hard...

    Once out, look at the area where you removed the electrical plug. You should see a "+" on the back end of the electrical plug. There should also be the letter "B"....
    the spot where you see the positive symbol, means that's prong number one on the electrical connector.

    To test:
    Turn on your ohmmeter and place the positive wire on the 1st prong in the electrical plug of the coil pack. The negative wire should be touching the middle prong. Verification of the ohmmeter at this time should say "0" aka infinite... if it's anything else, the pack should be changed. Next test: reverse the wires... positive on the middle prong and negative on the 1st prong.... on a new coil pack, it should give a value of approximately 1.3-1.7 mega ohms. If any of the readings are off, replace the coil pack.

    Note: Firewall coil packs are extremely easy to find, simply look in the cracks of the intake header. you'll see 3 similar looking coil packs to the front ones. The exception with these is that they are longer and look a slight bit different. removal is the same process as the front coil packs. Simply pay special attention to not dropping the screws in the intake area... it'll be hard to get out.

    to test: follow the front coil pack testing method. Look for the Positive symbol, this is your first prong... and go from there.
    END QUOTE


    Good luck (remember rated this help).

    Jul 11, 2010 | 1996 Plymouth Breeze

    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.
    3db79bc.gif
    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

    Installation of a coil pack


    Replacing the coil pack on these is very simple. just remove and mark your spark plug wires, remove the electrical connector going to the coil pack. remove the retaining bolts, install new coil pack by reversing steps. Good luck.

    Nov 03, 2009 | 2000 Dodge Neon

    3 Answers

    Sentra misfire problems


    I would pull the sparkplugs and examine.Are they Black? ,Wet?, Hot?, Cold? Also whenever you change the plugs change the wires (cap and rotor if app.).Cracked wires are hard to see but can cause spark to find ground before it gets to sparkplug.8 year old car how many full tune ups?.Good Luck.

    Sep 08, 2009 | 2001 Nissan Sentra

    1 Answer

    S type 3.0l v6 only running on 2/3 cylinders


    sure its electrical myself like a coil pack or maybe evan a pick up sensor

    Jun 21, 2009 | 2000 Jaguar S-Type

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