Use my advice at your own risk. I will not be held responsible for what you do to your vehicle.
For Jeep Cherokees with a 4.0 engine; (if you are standing in front of the vehicle looking back at the engine compartment) the spark plugs are on the left side / the same side as your battery. What look like spark plugs on the right side of the engine are actually your fuel injectors. On the exact opposite side of the engine block, all 6 spark plugs are held in place with a long rectangular box (called a coil pack) that has 3 small raised boxes on it. The coil pack is the length of the engine block and about 1 1/2 wide. There are 4 large approx 1/2 bolts that hold this coil pack in place. There is a plug on the back end / closest to the fire wall where you can upplug this coil pack but I couldn't unplug it.
Simply, remove the 4 bolts holding the coil pack in place, lift the coil pack away from the engine block and the spark plugs are exposed. The boots that attach to the spark plugs are "fixed" in to the coil pack. Replace your spark plugs some type of using anti-sieze compound, adjust your gap, and torque to 19 lbs. NOTE: use dielectric grease on plug boots and coil pack ends of wires. can also be used on plug in bulbs.
The above answer is great but if they are platinum plugs don't bother setting gap because you usually don't get a spec anyways and you do more harm than good. The gap is preset.
Look at where the plugs should be, you will see black rectangular things there. These are coil packs. remove the nuts and pull them off. The plugs are now showing. Hope this helps
it is a diagram of the engine?
just pull them out. it doesnt take a genius
Dirty spark plugs can occur on any make, model, or year. Changing the spark plugs should be done for maintenance, such as when you do a tune up.
The 1993 Jeep grand Cherokee brake light switch simply plugs in and out. The brake light switch is located beneath the dashboard on the drivers side of the engine compartment.
They are under the coils.where are the coils?
Look for black square things that look like they would be covering the sparkplugs. Those are coil packs, just remove them and the plugs are under them.
Generally I change platinum plugs at 100K and regular plugs at 50K.
Beneath their coils.
how to chang spark plugs in a 1992 Pontiac grand prix
The plugs are under the coil packs that are on the passanger side of the vehicle. This is of course if you have the 4.0 engine. I would need to know more about your vehicle to gie you the best answer.
They are under the coils, next to the fuel injectors.
There are three on the left, three on the right, and two on the rear.
Cheap ones run for $2. Premium Bosch plugs run for about $6 a piece.
They are under the coils.They are under the coils.
Depending on your year of Cherokee, I know the 1991 and newer Cherokees use Champion RC12LYC, Autolite 985, and Denso QJ16HR-U with the 4.0L 6 cylinder engine. On my 2000 Jeep Grand Cherokee Limited with a 4.7L V8, I used Champion Copper Plus RC12MCC4. These are the plugs that the manufacturer calls for. No other plugs should be used. (If you don't believe me, search the internet) Learn how to change the spark plugs on a 4.7L V8 (SEE LINK BELOW).
remove the coil packs on top the engine with a small tork bit then change plugs
Changing the spark plugs is a relatively easy job which can be done by anybody with slight mechanical knowledge. On a Jeep with the 4.7L engine, the intake needs to be removed. The coilpacks can then be removed, and then the spark plugs can be removed and replaced with new ones. The job should take about 1-2 hours. See the related link below for detailed instructions.
How to replace spark plugs in a 1989 jeep cherokee?
There are several things that can cause your 2001 Pontiac Grand Am 2.4 liter engine to misfire. The next thing you should change will be the fuel injectors.
Check/repace the spark plugs, wires, distributor cap and rotor.
They are under the coils, next to the fuel rail.
The plugs are under the coil. Just remove the coil and there they are.