Question about 1994 Cadillac DeVille

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Ignition coil sparks from coil

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4.6 northstar? coil pack and wire connection. remove plug wire at arching. is wire and coil corroded? if so replace both. check all
coil and wire contacts. common for coils and wires

Posted on Jan 03, 2014

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Posted on Jan 02, 2017

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No spark from coil to distrubuter


Disconnect the ignition coil output wire at the distributor cap.
Connect a spark plug to the end of the ignition coil output wire which you just disconnected.
Connect a ground wire to the threaded portion of the spark plug.
Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire).
Connect one end of a ground wire to the ignition coil negative terminal.
Turn the ignition switch to the ON position.
Tap the other end of the ignition coil ground wire jumper on an good grounding point (for example the battery negative terminal) and look for sparks at the spark plug that correspond to the frequency of your tapping of the ground wire.
If you have a good spark at the spark plug, the ignition coil is good.
If you don't get a good spark, check for approximately 12 VDC from the coil positive terminal (black wire) to ground with the ignition switch in the ON position. You should also get approximately 12 VDC from the coil negative terminal (Green wire) to ground
Ignition Coil Resistance Check

In addition to the test above, you may elect to perform an ignition coil resistance check as confirmation of the coil's condition.

Check the ignition coil primary coil resistance by connecting an ohmmeter between the positive (Black wire) and negative (Green wire) terminals on the coil. The resistance should be 0.4 to 0.6 ohms.
Check the ignition coil secondary coil resistance by connecting an ohmmeter between the coil output terminal and the ignition coil negative terminal. The resistance should be 5000 to 7200 ohms.

You may have a bad coil or bad ground or wire connection

Jan 23, 2017 | Cars & Trucks

1 Answer

How to change a coil pack on a Chevy Tahoe


To Remove......
1. Remove the spark plug wire from the ignition coil.
2. Disconnect the ignition coil electrical connector.
3. Remove ignition coil bolts.
4. Remove ignition coil.

To Install.....
1. Install ignition coil.
2. Install ignition coil bolts.
3. Tighten ignition coil bolts to 8 Nm the same as 71 inch pounds.
4. Connect ignition coil electrical connector.
5. And finally, install spark plug wire to ignition coil.

Apr 22, 2015 | Chevrolet Tahoe Cars & Trucks

1 Answer

Cant find plugs on a 3.7 6 cylinder 2 wheel drive dakota please help


3.7L Engines
Each individual spark plug is located under each ignition coil. Each individual ignition coil must be removed to gain access to each spark plug. Refer to Ignition Coil Removal/Installation. Prior to removing spark plug, spray compressed air around base of ignition coil at cylinder head. This will help prevent foreign material from entering combustion chamber.

  1. Remove spark plug from cylinder head using a quality socket with a rubber or foam insert.
  2. Inspect spark plug condition.
To install:
  1. Start the spark plug into the cylinder head by hand to avoid cross threading.
  2. Before installing coil(s), check condition of coil o-ring and replace as necessary. To aid in coil installation, apply silicone to coil o-ring.
  3. Tighten spark plugs to 27 Nm (20 ft. lbs.) torque.
  4. Install ignition coil(s). Refer to Ignition Coil Removal/Installation.

Sep 21, 2013 | Cars & Trucks

1 Answer

Po 353 code


P0353 CHEVROLET Description The ignition system on the vehicle uses individual ignition coils for each cylinder. The Powertrain Control Module (PCM) controls each ignition coil operation. The PCM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

Possible Causes - Ignition Coil harness is open or shorted
- Ignition Coil circuit poor electrical connection
- Faulty Ignition Coil 3
- Faulty Powertrain Control Module (PCM)
Read more: http://engine-codes.com/p0353_chevrolet.html#ixzz21kWvhhBc

Jul 26, 2012 | 2006 Chevrolet Cobalt

2 Answers

How do I replace the ignition coil in my 2002 ford taurus



Removal & Installation

3.0L (VIN S) Engine

  1. Disconnect the negative battery cable.
  2. Unplug the engine control sensor wiring connectors from the ignition coil and the radio ignition interference capacitor.
  3. Tag and disconnect the spark plug wires from the coil by squeezing the locking tabs, then twist the tab and pull upwards.
  4. Unfasten the four ignition coil retainers and remove the coil and the coil ground wire the radio ignition interference capacitor. Save the capacitor and coil ground wire for re-installation of the coil assembly.
  5. Wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect the coil for cracks, carbon tracking, dirt or damage and replace as necessary.

    0996b43f802333d8.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Ignition coil assembly mounting-3.0L DOHC engines


To install:
  1. Place the coil, capacitor and the coil ground wire onto its mounting location on the right hand valve cover.
  2. Install the coil assembly retainers and tighten to 45-61 inch lbs. (5-7 Nm)..
  3. Apply dielectric compound D7AZ-19A331-A or its equivalent to the spark plug wire boots.
  4. Attach the spark plug wires to their proper terminals on the coil and make sure the boots are firmly seated so that the locking tabs engage.
  5. Attach the engine control wiring connectors to the ignition coil and the radio ignition interference capacitor.
  6. Connect the negative battery cable, start the vehicle and check for proper operation.

Dec 19, 2010 | 2002 Ford Taurus

1 Answer

How to change the spark plugs on peugeot 406 v6 3l coupe is this straight forward like a 4 cylinder car


1. Spark plugs removal

1.1. Front cylinder bank spark plugs removal:
1.1.1. Disconnect the battery from car terminals.
1.1.2. Remove the engine plastic cover.
1.1.3. Disconnect the ignition coils electrical supply cable and all three coils connectors.
1.1.4. Remove all three ignition coils screws.
1.1.5. Remove all three ignition coils out from cylinder head.
1.1.6. Remove all three spark plugs out from cylinder head (straight forward).

1.2. Back cylinder head bank spark plugs removal:
1.2.1. Remove the inlet manifold out from cylinder head.
1.2.2. Disconnect all three ignition coils connectors.
1.2.3. Remove all three ignition coils screws.
1.2.4. Remove all three ignition coils out from cylinder head.
1.2.5. Remove all three spark plugs out from cylinder head (straight forward).

2. Spark plugs installation

2.1. Refit all in reverse order.
2.2. Spark plugs tightening torque = 2,8 +/- 0,3 daN.m
2.3. Ignition coils tightening torque = 0,8 +/- 0,2 daN.m

Nov 16, 2010 | 2005 Peugeot 405

1 Answer

Changed fuel pump. getting fuel to engine. but will not start.


Check for spark. Maybe a crankshaft position sensor is bad or a module.

Secondary Spark Test This spark tester looks just like a spark plug, attach the clip to ground and crank the engine to check for spark 91052p10.jpg
This spark tester has an adjustable air-gap for measuring spark strength and testing different voltage ignition systems 91052p11.jpg
Attach the clip to ground and crank the engine to check for spark 91052p12.jpg
This spark tester is the easiest to use just place it on a plug wire and the spark voltage is detected and the bulb on the top will flash with each pulse 91052p10.jpg
The best way to perform this procedure is to use a spark tester (available at most automotive parts stores). Three types of spark testers are commonly available. The Neon Bulb type is connected to the spark plug wire and flashes with each ignition pulse. The Air Gap type must be adjusted to the individual spark plug gap specified for the engine. The last type of spark plug tester looks like a spark plug with a grounding clip on the side, but there is no side electrode for the spark to jump to. The last two types of testers allows the user to not only detect the presence of spark, but also the intensity (orange/yellow is weak, blue is strong).
  1. Disconnect a spark plug wire at the spark plug end.
  2. Connect the plug wire to the spark tester and ground the tester to an appropriate location on the engine.
  3. Crank the engine and check for spark at the tester.
  4. If spark exists at the tester, the ignition system is functioning properly.
  5. If spark does not exist at the spark plug wire, perform diagnosis of the ignition system using individual component diagnosis procedures.
---
Ignition Coil Testing
  1. Remove suspect coil.
  2. Disable fuel pump by disconnecting inertia switch electrical connector.
  3. Reconnect the ignition coil electrical connector to the coil.
  4. Install spark tester 303-D307 (D81P-6666-A) or the equivalent.
  5. Crank engine while observing the tester.
  6. If a blue-white spark is not observed replace coil.
---
Removal & Installation To Remove:
  1. Remove the air cleaner outlet pipe if interfering.
  2. Disconnect the connector from the ignition coil. coilconn.gif

  3. Remove the bolt from the ignition coil. coilbolt.gif

  4. Remove the ignition coil on plug.
To Install:
  1. Install ignition coil on spark plug.
  2. Install ignition coil bolt. Tighten to 10 Nm (89 in. lbs.). coilbolt.gif

  3. Reconnect the ignition coil electrical connector. coilbolt.gif

  4. Install the air cleaner outlet pipe if removed earlier.
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Oct 28, 2010 | 1999 Ford Crown Victoria

1 Answer

There is a misfire in my engine, changed plugs & wires. now it reads that the fuel leveling sensor is bad, will this help?


If there is a misfire, the cylinder that it is misfiring in will be recorded as a code in the computer.

Have the car scanned to determine which cylinder is bad. Then, replace the coil pack going to that cylinder.

Ignition Coil Pack Removal & Installation 2V Engine To Remove:
  1. Twist the spark plug wires off of the ignition coil towers. Mark the spark plug wire positions so they can be installed in their original positions.
  2. Disconnect the electrical connector from the ignition coil. CAUTION
    When removing the spark plug wires, a slight twisting motion will break the seal and ease removal.
    coilconn.gif

  3. Remove the mounting screws and remove the ignition coil.
To Install:
  1. Position the ignition coil pack on engine.
  2. Install mounting screws and torque to 53 in-lbs. (6 Nm). coilbolt.gif

  3. Connect ignition coil pack electrical connector.
  4. Match previously marked spark plug wires to ignition coil and install.
4V Engine To Remove:
  1. Remove the RH cowl grille cowlpic.gif
  2. Remove the screws and the water shield
  3. Mark spark plug wire positions
  4. Disconnect the spark plug wires from the ignition coil CAUTION
    When removing the spark plug wires a slight twisting motion will break the seal and ease removal.
  5. Disconnect the ignition coil electrical connector coilconn.gif

  6. Remove the mounting screws and remove the ignition coil
To Install:
  1. Position ignition coil pack. Install mounting screws and torque to 56 in-lbs. (6Nm)
    coilbolt.gif

  2. Connect ignition coil pack electrical connector
  3. Match previously marked spark plug wires to ignition coil and install
  4. Position water shield and install screws
  5. Install RH cowl panel
prev.gif next.gif

Aug 11, 2010 | 2002 Ford Taurus

3 Answers

Coil pack. what and where is it? what does it look like?



 
 
Ignition Coil
Removal & Installation
4.2L Engine
1997-2000
To Remove:

Before servicing the vehicle refer to the precautions at the beginning of this section.
Remove or disconnect the following:
The ignition coil electrical connector
The radio ignition interference capacitor connector
The locking tabs
The six ignition wires, marking for reinstallation
The brackets
The spark plug wire set
CAUTION
Spark plug wires must be connected to the proper ignition coil terminal. Mark spark plug wire locations before removing them.
The accelerator cable bracket nut
The accelerator cable bracket bolt
The accelerator cable bracket and position it aside.
The two ignition coil nuts
The ignition coil stud bolt
The ignition coil
To Install:
Install or connect the following:
The ignition coil
The two ignition coil nuts
The ignition coil stud bolt
Torque to: 71-98 inch-lbs (8-11 Nm)
The accelerator cable bracket
The accelerator cable bracket nut
The accelerator cable bracket bolt
Torque to: 71-98 inch-lbs (8-11 Nm)
The ignition coil electrical connector
The radio capacitor connector


CAUTION
The Spark plug wires must be connected to the proper ignition coil terminal.
Squeeze the locking tabs and connect the six ignition cables.
2001-2003
To Remove:

Before servicing the vehicle refer to the precautions at the beginning of this section.
Remove or disconnect the following:
The ignition coil electrical connector
The spark plug wires, marking for reinstallation
CAUTION
The sparkplug wires must be connected to their correct ignition coil terminal.
The ignition coil
The bolts
Inspect the ignition coil for carbon tracks or damage.
To Install:
Inspect the ignition coil for carbon tracks or damage.
Install or connect the following:
The ignition coil
The bolts
Torque to: 53 inch-lbs (6 Nm)
The ignition coil electrical connector
The spark plug wires, in their original positions
4.6L Engine
1997-1999
To Remove:

NOTE: This procedure is for either RH or LH ignition coil.
Before servicing the vehicle refer to the precautions at the beginning of this section.
Remove or disconnect the following:
The ignition coil electrical connector
The radio capacitor electrical connector
The spark plug wires by squeezing the locking tabs (four each side)
CAUTION
The spark plug wires must be connected to their proper ignition coil terminal. Mark spark plug wire locations.
The bolts
The ignition coil
To Install:
NOTE: The procedure is for either LH or RH ignition coil
Install or connect the following:
The ignition coil
The bolts
Torque to: 44-62 inch-lbs (5-7 Nm)
The ignition coil electrical connector
The radio capacitor electrical connector
The spark plug wires (four each side), into their original positions by squeezing the tabs


CAUTION
The spark plug wires must be connected to their proper ignition coil terminal.

 
Top of Form 1
Bottom of Form 1

Mar 28, 2009 | 1998 Ford F150 Regular Cab

2 Answers

1990 Subaru Legacy shorted out the ignition coil. I replaced it and in less than 1 mile,it shorted out the new one.


Subaru engines (including Legacy and engines of many other automobiles, GM, etc.) have returned to so-called wasted spark ignition systems since advent of the electronic distributor-less ignition (having been used historically in early engines with magneto ignitions). With this approach, the ignition systems are less expensive and usually quite reliable. At the same time, however, a shorted spark plug (cracked or carbon clogged, etc.) (or bad ignition spark plug wire) grounds both the ignition spark and the false spark being used. This means that it also grounds the corresponding respective ignition spark of the other 180 degree out of phase cylinder (that uses the same the same coil because the spark current is connected to the spark plugs of two cylinders). Since such a defect allows more current to flow in the spark coil to two plugs when the resistance of the spark plug gap disappears due to a cracked plug, etc, it seems likely to hasten coil burn out if the spark plug/plug wire defect is not corrected before installing the new spark coil.

To explain further, wasted spark means that when a cylinder is ready to fire, it gets a spark to its spark plug while part of the spark (from the same coil and current) as a sort of copy is also sent to another cyclinder at the same time but when the piston in that cylinder is exhausting its ignited gases 180 degrees out of phase from when its spark is needed. When the second cylinder is ready to fire and receives its "spark, the first cyclinder the also receivesa "wasted" spark "copy" of the one needed by the second cylinder. Economy is achieved in manufacture because otherwise electronics would have to turn on and off four different spark coils to distribute four different sparks as needed to the four cylinders. With wasted sparks (which are cheap), because the spark current of one coil is connected (internally in the ignition coil unit) to two cylinders that are in the same position but 180 degrees out of phase in firing, the system can turn on and off two spark coils twice as fast with half the electronics and fire two cylinders that are 180 degrees out of phase. A four cylinder engine thus uses only two coils, a six cylinder engine, three coils, etc., in a wasted spark system.

Jul 27, 2008 | Subaru Legacy Cars & Trucks

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