Question about 1996 Jeep Grand Cherokee

1 Answer

Why is ignition coil firing? - 1996 Jeep Grand Cherokee

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Renaissance:

    An user who is expert in 3 categories / brands.

  • Jeep Master
  • 1,453 Answers

If the ignition coil doesn't fire, your engine will not have any spark, to burn the fuel/air mixture and the engine won't even start.

Posted on Oct 14, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

It mayI have no fire going to the coil or from the coil to the plugs


Have you checked the wiring, the spark @ plug, Power to the coil???

Engine Won't Start No Spark - Auto Diagnosis Repair Help

aa1car.com/library/no_spark.htm
If your engine cranks normally but will not start because it has no spark, or it ... If an engine has a coil-on-plug ignition system with no plug wires, remove one of ...

No-start, No-Spark diagnosing simulated - YouTube

? 5:13
https://www.youtube.com/watch?v=XSWN1M8Hoqo
May 19, 2010 - Uploaded by FrankHurtAuto
Simulation of no start with no spark diagnosing, ... Ignition coiland module test with test light (ScannerDanner Premium lecture) - Duration: ...

getting fire from coil but not to plugs - CarGurus

www.cargurus.com > Questions > Dodge > Ram 1500

CarGurusJun 12, 2013 - 2000 dodge ram 1500 4x4 not getting fire changed distributor cap, coil, pickup ignition, rotor, plugs, plug wires 2 answers. ... 1994 dodge 5.9 just shut off and wont start back up there is no spark or fire from coil or plugs. ... 94 dodge van 318 eng will not start new plugs new crank ...

Ignition Coil Troubleshooting: (No) Fire in the Hole

www.secondchancegarage.com/public/coil-troubleshooting.cfm

Jan 27, 2016 | Cars & Trucks

2 Answers

Diagram for 3.8 firing order


1987 Pontiac Bonneville 3.8 liter V-6 VIN "3"

Identifying Ignition Types I and II

On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit.

zjlimited_324.gif

On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition

zjlimited_325.gif

With Type II Ignition

zjlimited_326.gif


Hope this helps.

Mar 24, 2011 | 1987 Pontiac Bonneville

2 Answers

What does the ignition coil do?


the ignition coil changes low voltage from the battery (12 volts) to high voltage (about 50,000 volts) to fire the spark plugs and ignite the fuel in the engine cylinders and drive the piston down

Oct 21, 2010 | 1999 Chevrolet Malibu

2 Answers

How do Iknow fireing order on ignition coils?Idon't know coil order


Here ya go...found the block for the reply....


6fcc1ec.gif

3.8L engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System

Sep 13, 2010 | 1994 Buick Regal Gran Sport

1 Answer

Timing the cams and crank with a belt


  1. Note: Electronic Ignition engine timing is entirely controlled by the PCM. Electronic Ignition engine timing is NOT adjustable. Do not attempt to check base timing. You will receive false readings.

The CKP sensor is used to indicate crankshaft position and speed by sensing a missing tooth on a pulse wheel mounted to the crankshaft. The CMP sensor is used by the COP Integrated EI System to identify top dead center of compression of cylinder 1 to synchronize the firing of the individual coils.
  1. The PCM uses the CKP signal to calculate a spark target and then fires the coil pack(s) to that target shown in Figure 51. The PCM uses the CMP sensor not shown in Figure 51 on COP Integrated EI Systems to identify top dead center of compression of cylinder 1 to synchronize the firing of the individual coils.
  1. The coils and coil packs receive their signal from the PCM to fire at a calculated spark target. Each coil within the pack fires two spark plugs at the same time. The plugs are paired so that as one fires during the compression stroke the other fires during the exhaust stroke. The next time the coil is fired the situation is reversed. The COP system fires only one spark plug per coil and only on the compression stroke.

    The PCM acts as an electronic switch to ground in the coil primary circuit. When the switch is closed, battery positive voltage (B+) applied to the coil primary circuit builds a magnetic field around the primary coil. When the switch opens, the power is interrupted and the primary field collapses inducing the high voltage in the secondary coil windings and the spark plug is fired. A kickback voltage spike occurs when the primary field collapses. The PCM uses this voltage spike to generate an Ignition Diagnostic Monitor (IDM) signal. IDM communicates information by pulsewidth modulation in the PCM.
  1. The PCM processes the CKP signal and uses it to drive the tachometer as the Clean Tach Out (CTO) signal.

2.5L V6

The ignition system consists of an ignition coil, spark plug wires and spark plugs.
The crankshaft position sensor signal is the basis for ignition timing calculations. The alternating voltage signal from the crankshaft position sensor is digitized by a pulse former within the powertrain control module. This digitized signal is then used to position the closing time of the primary circuit of the ignition coil.
Ignition timing is determined by the powertrain control module in response to engine operating conditions based on stored data tables or maps. Once ignition timing has been determined, the powertrain control module interrupts the current to the primary circuit of the ignition coil thus triggering the ignition spark which is supplied to the cylinders through the spark plug wires and spark plugs.
The ignition coils are triggered by the powertrain control module in pairs (cylinders 1 and 5, cylinders 4 and 3 and cylinders 2 and 6) sending one ignition spark to the firing cylinder and one ignition spark to the corresponding cylinder on the exhaust stroke. This ensures that any unburnt fuel residues remaining in the cylinder on the exhaust stroke are re - ignited to provide cleaner exhaust emissions.
---------------------------------------------------------------
2.0L 4 cynder

The ignition system consists of an ignition coil, spark plug wires and spark plugs.
The crankshaft position sensor signal is the basis for ignition timing calculations. The alternating voltage signal from the crankshaft position sensor is digitized by the powertrain control module. This digitized signal is then used to position the closing time of the primary circuit of the ignition coil.
Ignition angle is determined by the powertrain control module in response to engine operating conditions. Once ignition angle has been determined, the powertrain control module interrupts the current to the primary circuit of the ignition coil thus triggering the ignition spark which is supplied to the cylinders through the spark plug wires and spark plugs.
The ignition coils are triggered by the powertrain control module in pairs (cylinders 1 and 4 and cylinders 3 and 2) sending one ignition spark to the firing cylinder and one ignition spark to the corresponding cylinder on the exhaust stroke. This make sures that any unburnt fuel residues remaining in the cylinder on the exhaust stroke are re - ignited to provide cleaner exhaust emissions.
------------------------------------------------------------------------------------
Integrated Electronic Ignition System The Integrated Electronic Ignition (EI) System consists of a crankshaft position (CKP) sensor, coil pack(s), connecting wiring, and PCM. The Coil On Plug (COP) Integrated EI System uses a separate coil for each spark plug and each coil is mounted directly onto the plug. The COP Integrated EI System eliminates the need for spark plug wires but does require input from the camshaft position (CMP) sensor.
----------------------------------------------------------------------------------------

Apr 05, 2009 | 1998 Ford Contour

1 Answer

Firing diagram for a 87 olds delta 88 3.8


1987 Oldsmobile Delta 88
3.8 liter V-6 VIN "3" Identifying Ignition Types I and II


119d8a7.gif
On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition

c6cc640.gif
With Type II Ignition

7722088.gif

Apr 02, 2009 | 1987 Oldsmobile Delta 88

Not finding what you are looking for?
1996 Jeep Grand Cherokee Logo

Related Topics:

35 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...