Question about 1993 Jeep Cherokee Country

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How do you advance the timing on a 93 jeep cherokee 4.0. I can't get the distributor cap to turn

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If you look at the distributor, you will see that the hold down is a bolt through an "ear which is part of the casting of the distributor housing.
By design, it is not-adjustable. Actual timing changes are made by the engine control module.
I had a problem with my 95, that seemed like symptoms of just about everything else except timing. After checking everything else twice, I removed the distributor, ground off part of the "ear" and used a smallblock chevy dist holddown, making timing possible. It worked!
However this solution indicates that my timing chain is worn beyond the parameters of the computer. Therefore, as soon as Spring arrives, the chain & gear will be changed!
If you want to make timing adjustment, don't. But if you must, it is possible!

Posted on Dec 19, 2008

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Posted on Jan 02, 2017

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I have a 1994 Jeep Grand Cherokee Laredo 6 Cyl. The vehicle was kind of running rough on idle. Take in consideration that I have replaced the spark plugs, spark plug wires a while ago. So I decided to...


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How to advance my timing on a 1996 jeep grand cherokee


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93 jeep cherokee will turn over but wont start I have spark at the distributor but nothing at the spark plugs.


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Firing order diagram for 1998 Jeep Cherokee Sport


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.

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

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

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

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

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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).

Oct 13, 2009 | Jeep Cherokee Cars & Trucks

1 Answer

Spark plug wire position on distributor cap


1-5-3-6-2-4
ALL Jeep 4.0 motors use this firing order. Any year, any model, high output or not.

Also, the spark plug wire placement on the cap, in a clockwise direction from the post nearest the engine block is: 6-2-4-1-5-3.(to the left side of the number 6 post, there should be a hold downscrew or strap for fastening the distributor cap to the distributor.
For a picture diagram, please go to this website:
- http://www.fixya.com/cars/t2859850-need_spark_plug_wiring_1993_jeep_4l
- http://www.jeepz.com/forum/engine/16923-six-cylinder-4-0-liter-jeep-engine-specs.html

Good luck (rated this help)

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Coil may be producing low voltage (KVs) to where it makes enough energy to snap out of the coil tower but then supressed as it travels down the high tension leads finally to the plug. Incidentally spark plug leads should have about 10k ohms of resistance per foot.I good coil will jump spark at least a half inch if you pull the wire off the cap and produce this much air gap

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