SOURCE: Need diagram for 1998 Jeep
hi, you didn't say what engine you have, I'll assume it's the 4.0 L in line 6 cylinder. Standing on the PASSENGER side of the jeep, the spark plug at the front of the engine is #1, the next is #2, and so on to #6 which is at the back (nearest the windshield).
The distributor is between you and the valve cover on the engine. Pretend the top of the distributor cap is the face of a clock.
The #1 spark plug wire goes in the cap at what would be the 6 o'clock position, (as viewed from your position standing on the passenger side, facing the side of the engine). The firing order direction is clockwise, so the 'hand' of the clock (actually the rotor in the cap) would continue to the next distributor cap plug in, which would be spark plug wire to #5 (8 o'clock position), then #3 (10 o'clock position), #6 (12 o'clock position), #2 (2 o'clock position), #4 (4 o'clock position). So all this means isi your firing order is, 1,5,3,6,2,4 If you have a different motor or any questions, let me know. Good Luck! countrycurt0
SOURCE: 2000 jeep cherokee sport 4.0
I believe that year had distributorless ignition, instead it uses a form of coil on plug ignition system.
If you open the hood, stand at the front of the vehicle. Look to the left side of the engine, around the bottom of the valve cover (The valve cover is where the oil fill cap is. The oil fill cap is on top of the valve cover), at the bottom of the valve cover on the left side you will see a series of humps. Those series of humps is the coil packs, the coil packs are all in one long piece held down by three or four bolts.
Take out those bolts, gently pry up at the ends of the coil pack and it will eventually come out. You'll see on the bottom side the spark plug boots are attached to the coil pack. After you get the ignition coil pack off, you will see the spark plugs under where the coil pack came from, the boots on the coil pack sit directly on the spark plugs.
SOURCE: 99 jeep cherokee sport 4.0l 6cyl voltage will go to 19v
The problem sounds intermittent, if you put volt meter on the battery while it is at that 19volt mark/reading(on the gauge cluster) you will be able to see if it is true. If your alternator is really charging over 16volts the lights should be getting brighter then usual and/or they are burning out. Find out ASAP, if the alternator has a defective voltage regulator, it needs to be replaced. Prolong use will damage components.
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.
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