How to tune up a 1998 jeep cherokee sport 4.0

joecoolvette

• 5660 Answers
• Posted on Jul 21, 2009

SOURCE: What is the firing order of the spark plug wires

1-5-3-6-2-4
Number 1 plug is in the front, with 2,3,4,5, and 6, right after it, going towards the back.

The distributor rotates Clockwise. Viewing the distributor cap from the top, view the two mounting screws. One on the lower right, the other is on the upper left.
Number 1 spark plug tower, is immediately to the ->left of the lower right screw.

SOURCE: 1998 jeep Cherokee Sport wont start

Give us more info. I will assume your past any battery issues so I won't ask. Do's it ever start or are you down and out?

ZJ Limited

• 17989 Answers
• Posted on Oct 13, 2009

SOURCE: firing order diagram for 1998 Jeep

1998 Jeep Cherokee 4WD 4.0L MFI 6cyl

To avoid confusion, tag and remove the spark plug wires one at a time, for replacement.
If a distributor is not keyed for installation with only one orientation, it could have been removed previously and rewired. The resultant wiring would hold the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes to reflect how your engine is wired.



Fig. 1: The firing order can usually be found cast onto the intake manifold



Fig.: 1989-98 2.5L engine Engine firing order: 1-3-4-2 Distributor rotation: Clockwise



Fig.: 2.8L engine Engine firing order: 1-2-3-4-5-6 Distributor rotation: Clockwise



Fig.: 4.0L engine Engine firing order: 1-5-3-6-2-4 Distributor rotation: Clockwise



Fig.: 5.2L and 5.9L engines Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise

Also, here can review the Jeep XJ Service Manual.

I hope help you with this, Good luck (remember rated this help).

SOURCE: 1998 jeep cherokee sport- i get a code p1682.

P1682 - Charging system voltage to low.

SOURCE: 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!