Question about Jeep Grand Cherokee

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2005 Jeep Cherokee miss fire on fifth cylinder

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  • Jeep Master
  • 5,341 Answers

Pull the spark plug to see if it is oil fouled, preventing firing. If it is, you may have a mechanical problem in cylinder 5- do a compression test to check for low compression in that cylinder.

If plug is clean or only showing black sooty deposits from unburned gas, the problem could be either in the secondary ignition (plug, plug wire, coil), or an injection problem. Try a known good spark plug and spark plug wire, also a known good coil, if plug and wire wasn't it. If checking for spark, you need to see a blue snapping spark when cranking engine to verify good ignition. A weak or orange spark, or intermittent spark is an ignition problem.
To check injection circuit on number 5, you can purchase an inexpensive "noid light" at parts stores. It plugs into the injector connector, and if circuit is good the noid light will be blinking when cranking the engine over. It is rare for injectors to fail, but if circuit is good and no gas is getting into the cylinder, injector may be bad or plugged.
Good luck.

Posted on Oct 13, 2013

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Posted on Jan 02, 2017

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SOURCE: Jeep Hesitates. P0303 code

Check the cylinders Commpression. over 115 psi is good, 120 psi is normal.

Posted on Sep 17, 2008

  • 1 Answer

SOURCE: 2005 jeep grand cherokee radio

It's in the engine compartment IOD#2. It's a black module with two fuses in it. Take that module off and replace the 20 AMP one.

Posted on Nov 21, 2008

lancer721
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SOURCE: Eject navigation disk in 2005 Jeep Grand Cherokee

Under the cd slot you will see a long thin rectangle that can be gently pryed out with a knife tip on the right side of the rectangle. under that cover there is a small button. push that and out comes the nav disc. Voila solved

Posted on Feb 10, 2009

  • 29 Answers

SOURCE: 2001 Jeep Cherokee with 6 cylinder engine -- PO306 code cylinder

Plug, plug wire, plugged or open fuel injector. are the most likely.

Posted on Sep 28, 2009

  • 834 Answers

SOURCE: firing order of a 1999 jeep cherokee 6 cylinder

Here is the firing order for that engine.


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Posted on May 10, 2010

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Fireing order diagram


cylinder firing order is: is 1-5-3-6-2-4 .... In Jeep Grand Cherokee Laredo ...Happy motoring.

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hope this helps

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Jeep 4.0 firing order


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Hope this helps (remember rated this).

Aug 09, 2010 | 1998 Jeep Cherokee

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Need firing order for 1998 Jeep Cherokee gand


For the 1998 Jeep Grand Cherokee Laredo:
I do not know if you have the 4.0L In-Line 6-Cylinder, the 5.2L V8, or the 5.9L V8; however I have included ALL below:

For the 4.0L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)

Distributor:
....(back)
.....5....3..(+)-screw
1.............6
(+).4....2

For the 5.2L V8: AND 5.9L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back).......
|..8..|.........|..7..|
|..6..|.........|..5..|
|..4..|.........|..3..|
|..2..|.........|..1..|
.......(front)
Distributor:
.....(back)
.......3
..4.........6

8.............5
..1.........7
.......2
......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

May 28, 2010 | 1998 Jeep Grand Cherokee

1 Answer

I need to know the firing order of my 1995 limited jeep grand cherokeemy spark plug wires are missing i have new wires i just don't know the firing order


For the 1995 Jeep Grand Cherokee:
I do not know if you have the 4.0L In-Line (Straight) 6-Cylinder or the 5.2L V8; however I have included bothe below.

For the 4.0L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
|..6..|
|..5..|
|..4..|
|..3..|
|..2..|
|..1..|
(front)
Distributor:
...(back)
....5...3.(+)-screw
1...........6
(+)4...2
...(front)

For the 5.2L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back)......
|..8..|........|..7..|
|..6..|........|..5..|
|..4..|........|..3..|
|..2..|........|..1..|
.......(front)
Distributor:
.......(back)
.........3
...4.........6
8...............5
...1.........7
.........2
.......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

May 21, 2010 | 1995 Jeep Grand Cherokee

1 Answer

What is the firing order of a 2005 jeep grand cherokee


I wrote all engine spec for a 2005 jeep grand cherokee

3.7L 6 cylinder
1-6-5-4-3-2

4.7L 8 Cylinder
1-8-4-3-6-5-7-2

5.7L 8 Cylinder
1-8-4-3-6-5-7-2

let me know if this help you.....

Sep 30, 2009 | 2000 Jeep Grand Cherokee

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Miss Firing


You might have a small leak in your vacuum system, check all of the hoses and plugged vacuum connections. Check your plugs and wires, distributor cap and rotor. Sometimes a crack in the distributor cap will cause carbon to build up. Since carbon is an electrical conductor it might be jumping from one cylinder to another that is not in line with the firing order.

Jul 10, 2009 | 1998 Jeep Grand Cherokee

1 Answer

Car engine light on light blinking shaking over due for oil chang


Your engine has a cylinder miss-firing, that not only shakes the car but makes the check engine light blink the cylinder number that is missing, don't drive the car this way or u will overheat the exhaust catalytic converter, this can cause a fire.

Dec 16, 2008 | 2001 Jeep Grand Cherokee

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