SPARK PLUG TORQUE

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!

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!

I'm assuming the "6" is for the 6-Cylinder....

For the 4.0L (6-Cyl):
Firing Order:
1-5-3-6-2-4
Cylinders:
(back of engine)
.........6
.........5
.........4
.........3
.........2
.........1
(front of engine)
Distributor:
.....(back)
.................(+)-screw
.....5.....3
1...............6
.....4......2
(+)-screw
......(front)

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

I'm not sure if you have a Cherokee or Grand Cherokee or what size Engine (2.5L, 4.0L or 5.2L). I have included all three below.

For the 2.5L
Firing Order:
1-3-4-2
Cylinders:
(back of engine)
......4
......3
......2
......1
Distributor:
(back)
.....3
1.......4
.....2
(front)
For the 4.0L:
Firing Order:
1-5-3-6-2-4
Cylinders
(back of engine)
.......6
.......5
.......4
.......3
.......2
.......1
(front of engine)
Distributor:
...(back)
....5...3
1...........6
....4...2
...(front)

For the 5.2L:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
(back of engine)
8............7
6............5
4............3
2............1
(front of engine)
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!

You didn't post your engine size so please pick the applicable diagram:



1996-98 4.3L Engines Firing Order: 1-6-5-4-3-2Distributor Rotation: Clockwise



1996-98 5.0L, 5.7L and 7.4L Engines Firing Order: 1-8-4-3-6-5-7-2Distributor Rotation: Clockwise




4.3L Engines Firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise



4.8L, 5.3L and 6.0L Engines Firing order: 1-8-7-2-6-5-4-3 Distributorless ignition system (one coil on each cylinder)



5.0L, 5.7L and 7.4L Engines Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise

You didn't specify 2wd or 4wd, but it won't matter as it turns out they are the same. The firing order is 1-5-3-6-2-4. To see a diagram go to http://autorepair.about.com/library/firing_orders/bl-fo-4771.htm

------>>>FRONT>>>>of Van >>>>

______________________________
#5 cyl #6 cyl

#3 cyl #4 cyl

#1 cyl #2 cyl
______________________________
_________________
I COIL BLOCK I
I I
I #3 #1 #5 I
I I
I I Firing Order Is
I I 1 2 3 4 5 6
I #6 #4 #2 I
I _______________I_

the Wires Go Accordingly to prospective Terminals, So Sorry Unable to Send Pics through FixYa, A Formating Problem Exists
and they show on my end but not on your end this is TRUE and CORRECT To The BOOK other than the Lines from Coil to Spark Plug ENDS at CYLINDERS. Please dont Forget to RATE Me
Thank You And Happy Motoring!!

you need to change the coil on# 3

normally to repair a cracked manifold its just as expensive to get a new one because manifolds are cast iron, you can get a new one from ebay for 30 bucks apposed to 100$ to have it welded with special matieral here is the firing order

| 2 4 6 8 |
| ----- |
| | 8 ||
| | 1 4 ||
front | |2 3||
of | | 7 6 ||
motor | | 5 ||
| ----- |
| |
| 1 3 5 7 |
---------------

Firing order for the 4.0L 6-cylinder is as follows:

1-5-3-6-2-4

As for the spark plugs, it looks like the Autolite AL 985 plugs are what you need. If you are going to replace the plugs, might as well also replace the plug wires, the distributor cap and rotor (if you have those, I dont recall which year they went to the distributorless ignition).