Having problems with your 2002 Jeep Grand Cherokee ?
Spark plug removal
\015 I'm trying to figure out how i remove the spark plugs from my 2002 jeep cherokee and replace them with new ones. It looks like you need to remove a bunch of things to get at them, but there must be an easier way.\015
Use my advice at your own risk. I will not be held responsible for what you do to your vehicle. \015\012For 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. \015\012Simply, 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. \015\012The above answer is great but if they are platnum plugs dont bother setting gap because you usually don't get a spec anyways and you do more harm than good. The gap is preset
Repair Help & Product Troubleshooting for 2002 Jeep Grand Cherokee
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.
Suggested Questions/Answers :
The motor is turning over but not firing up. I removed a spark plug wire to see if it was getting spark, nothing. I then replaced the wire n removed the wire running to the coil, then i got sparks. I removed the spark plugs n noticed they were full of gas (drenched). I let them dry, but think im going to replace them. I then removed the distributor cap. rotor looks worn n burned but my question is... If im getting sparks at the distributor cap why isnt it sending it to the spark plugs? co
Replace rotor button ... Chevrolet Astro
99 Saturn sc2 will not start after sitting overnight. Replaced the battery, CPK, Spark Plugs (autolite), ECTS from the dealership, cleaned throttle body with valvoline throttle body cleaner. Removed the spark plugs and they were wet. Checked for spark by attaching plug to plug wire and resting on the exhaust manifold - did see spark. Yesterday this happened and after removing the spark plugs and cranking the engine over for 10 seconds and replacing the plugs the car started ran fine and continue
Check the oil,crankcase,for fuel,if it has fuel in the crankcase,in the oil,this will happen.I would say the initial problem is in the coolant sensor,it controls spark,and fuel pulse,and air mixture,threw the computer.Now this may have been the probl ... 1999 Saturn SC
1993 Toyota Camry. The vehicle quit while driving. It won't start. I replaced the Ignition coil because the resistance measurements were lower than spec. Now it has spark in all cylinders, all injectors are being pulsed and fuel pressure and volume is to spec. The spark plug are covered in fuel when I remove them after cranking the engine. I removed all plugs and installed them into each wire and observed the spark in each plug as I cranked it. I removed the valve cover to make sure the timing b
... 1993 Toyota Camry V6
Any issues removing #8 cylnder spark plug ...the socket won't engage to loosen off spark plug i believe the last person removing that spark plug didn't realize that the rubber boot inside socket stayed behind ....just my opinion cos can't see down inside just wondering if you came across this and if this is the reason socket won't seat down how to remove the rubber boot left
Try removing the rubber boot from your spark plug socket, then see if it will seat over the spark plug. ... 2003 Lincoln Navigator
My 98 Mitsubishi eclipse 2.0 I recently purchased had oil in the spark plug wells I noticed the valve cover bolts were loose (2) u tightened then down changed plugs and wires when I removed cylinder four plug oil build up went into hole spark plug sits in flash engine light came on and flashes when in park took it to auto zone they removed light but it still flashes in park but never stays on codes they pulled before clearing it were cylinder one and four mis fire but I removed wires one by one
... 1998 Mitsubishi Eclipse
Oil on spark plugs the catalytic converter on driver side went out. just pryor i received multiple OBDII codes: 1st, o2 sensor bank1 out and then multiple cylinders misfiring. all 6 plugs were coated in oil about an inch up. redplaced the cat and both front o2 sensors, removed plugs, blew out spark plug chamber and put new spark plugs. I pulled the spark plugs and they still have some oil coating on the spark plug threads and on the bottom. what does this mean?
You should do a compression check before you go any further. You may have either a blown head gasket, broken piston rings or a blown piston. Another way to get oil on the spark plugs is for the intake manifold gasket to leak. If the compression tes ... 1999 Isuzu Rodeo
Gas is pouring out of the spark plug hole when the spark plug is removed. before I removed the the spark plug the engine would not crank on my 15.5 briggs &Stratton engine.
... Cars & Trucks
I have a spark plug thAT BROKE WHEN i TRIED TO REMOVE. i WOLD LIKE TO KNOW HOW TO EXTRACT IT NOW. It has been suggested that it be bored out and rethreaded. It seems that parts of the spark plug could end up in the cyclinder. I have been assured thatthose can removed with a magnet. The electrode of spark plugs is copper which non magentic. Is this a safe procedure ?
Did u just brake the porcelain of the pug ... 1992 Pontiac Grand Am
I have a 2004 BMW 545i. I'm currently working to remove all of the 8 spark plugs to check their condition. I'm unable to remove the ignition coils up and out of the spark plug holes on the two far rear spark plugs(#4 right side and #8 left side) because the clearance between the tops of those coils and the body of the engine compartment is too narrow; that is, the total clearance is shorter than the total length of the ignition coils. Could I possibly be overlooking a certain step/procedure or i
Sorry, don't know that one, but google BMW 545i coil removal and see what you get. Also, be careful getting the plugs out as some are often corroded in place due to aluminum/steel chemical reaction. Sometimes it takes an impact wrench to jar them b ... 2004 BMW 5 Series
Well, one day I wanted to change the spark plugs on the 2000 lincoln navigator, I need to remove the the starter solenoid so I could be able to pull out the last two spark plugs on the right side of the engine. I wasn't able to remove the starter solenoid with the battery connected because there was a lot of sparks coming out, so I could shorted out something. In order to remove the solenoid I had to disconnect the battery. One to two hours later when I putted the battery cable back, i try to st
If you dont have any dash lights when you turn the key on then you have blown the MEGA FUSE ... 2000 Lincoln Navigator
The engine on my sons 91 Mazda Miata is running ruff. Like on 3 cylinders. If I pull the spark plug wire on the #1 cylinder the engine runs the same. If I pull the spark plug wires on the #2,3, or 4 cylinders the engine runs worse or dies. It seems to be getting a good spark but I changed the plugs and wires anyway and the problem remains. While running the engine with the #1 spark plug wire removed there is no accumulation of fuel on the spark plug. It's bone dry. Nor does any fuel come o
You have done a great test but If I assk you to do a swap of the Ist cylinder plug and injector with one from the 3rd , we can come to a conclusion before we can change the full set of plugs and injectors for a good performance.( only if the mileage ... 1991 Mazda MX-5
I have 1994 super cab the cylinder on the passenger side when i remove the plug wires the engine does not change its idle if i remove any one wire on the other bank the engine lopes and stalls. The truck lacks power and doesnt shift well anymore i have replaced spark plug and new plugs wires I have voltage to the injectors and spark at the plugs on the passenger side. I just had the head gasket replaced and still no fix. I am with out a clue now help please
I have had the coilpack for that side burn out before where you can still see visible spark at a plug, but when in the cylinder and under compression it wouldn't spark. It fooled me for a bit but ended up being a bad ignition coil.. ... 1994 Ford Ranger Supercab
Mazda Eunos 500 - Engine lacks power - investigation reveals strong sparks on all cyls fuel at all cyls compression to specification on all cyls timing ok. Removing spark plug lead on cylinder one makes no difference. Removal of lead on all other cylinders one at a time makes a noticable difference. ? have fitted new leads new spark plugs checked distributor cap for tracking ? 2L V6 1998 160k
When you change the wires did it bring back the dead cylinder? If not check the resistance on that injector it should read 11 to 15 ohms, check another injector to see specific ohms they should be close if not exact. ... Cars & Trucks
Misfire on Cylinder 3 of a 2002 Chrysler Sebring LX (2.7L 6-cylinder engine). I would like to change the spark plugs, but can't reach the 1,3, and 5 plugs even after removing the intake manifold and the ignition coil -- there appears to be not enough space etween the hood (or better lower window part) and the motor to insert the spark plug removal took -- unless there are bendable ones? Are there? Any other way (without lowering the whole motor? I would like to do this in my driveway! Thanks in
You don't have to lower the motor .Ive been in the same situation with the same carI used a swivel adapter . first insert the socket with the swivel on the spark plugthen get an extension and add it to the swivel e ... 2002 Chrysler Sebring
I pulled a spark plug to change plugs and the spark plug wire boot was all wet from oil. The other three plugs were fine. The rest of the engine looked fine apart from the regular dirty engine look. No oil leaks elsewhere. What can be done? I am thinking i need to replace the valve cover gasket along with the valve gasket(?), unless there are small gaskets by the spark plug. But do i need to remove the cover to fix it?
Yes you need to remove the valve cover to repair it, the new valve cover gasket set will come with the spark plug hole tube seal's also. ... 1996 Saturn SL
I'm trying to change my spark plugs and can't get the boot off of the plugs. Is there a tool that I can purchase that can remove the spark plug wire from the spark plug? Thanks, Jeff
Try to turn the wire before pulling on it to break the seal.I use an alignment shim from (early gm upper control arm) with a 1/4 inch bolt about 4 inches long fits around the plug well and you can pull the wire off. ... 2005 Chevrolet Avalanche
I took my 2004 gmc envoy, 6 cylinder, in for new spark plugs and fuel filter. When i got it back the service engine light came on. I took it back and was told that it was a bad spark plug. I have taken it back two more times and it has the same misfire in cylinder 6. I then took it to Firestone and they told me that the spark plug was so tight in cylinder 6 that they did not want the liability of trying to remove the plug for fear of damage to the cylinder. I took it to another place and th
I was having a similar problem with my 2002 Envoy. Usually when accelerating at 60 and 90km/h it would have almost like a clunk and idled rough. \015\012\015\012I took it into the shop and they said a tune up would be the first step to co ... GMC Envoy
Ive got a 2001 vw jetta 2.0 that died while driving and will not start. The starter engages but engine is not firing at all. Ive tested the starter which is good. I removed a spark plug & while still connected to plug wire & turned the key to verify spark which it has. I then pulled fuel pump relay & tested with twelve volts & it is operational. I then removed the fuel pump & tested it with 12 volts & it too was operational. I disconnected the fuel line just before the pressure regulator & fuel
Do you have compression on every cylinder? that may be your problem, that's the suggestion i'll make. pull each spark plug one at a time and do a compression check to make sure you have compression. if you don't have the tool, they are not that expen ... 2001 Volkswagen Jetta TDI
The spark plugs on my 97 jimmy are very difficult to access and remove. is there a trick to removing and replacing 6 spark plugs?
Just need different wrench combinations\015\012\015\012Use a wrench instead of a ratchet or go \015\012thru the wheel well flap,to get a couple\015\012of them ... GMC Jimmy
I was told that in order to change the spark plugs on my Nissan Maxima, the shop would have to remove the intake manifold to an extra cost of 200.00. Is it necessary to remove the intake manifold to change spark plugs. Have any idea as to what I should pay for a tune up on a 2000 Maxima
This is possibly true, especially if you have a 6 cylinder. They don't actually remove the whole intake from the motor, there is a section of the intake system that can be removed fairly easily and then the plugs can be accessed. Unfortunately, thi ... 2000 Nissan Maxima
Saturday the car was running fine sat. afternoon the spark plugs were changed and the second boot from the left was so stuck that it actually broke in half when trying to remove it. So finally after removing the broken ignition wire boot and replacing all of the spark plugs, and the entire ignition wire set, and being careful about puting them back in the correct order the car refuses to start. The dash lights come on and the relay clicks, but it wont even try to turn over. Any ideas on what cou
Either battery or starter is bad or loose wire at battery or starer ... 1996 Honda Accord
How do you remove the spark plugs in a 2008 automatic chrysler pt cruiser? Do you have to remove the manifold and replace the gasket to change the spark plugs?
I think you can reuse the gasket (rubber) just take out the bolts and position it out of the way enough to get plugs in and out. Be sure to replace the timing belt, tensioner and water pump at 90k miles....or youll be sorry. ... 2008 Chrysler Pt Cruiser
I have a 61 ford falcon 144 ci . I can't seem to find the correct spark plug removal tool.I tried an 18mm spark plug socket then a 18mm deep well socket and it still won't fit. Is there a special tool to remove them ? I'm confused. It shouldn't be this hard.
You can buy a original car diagnostic tool for you car ,go to the immokm website ... Ford Falcon
This question is about my 1990 Toyota Cressida. I'm in the process of replacing the valve cover gaskets because of an oil leak. My question is....how or is it possible to remove the center piece between the valve covers in order to gain access to the spark plugs? I noticed oil and dirt built up in the spark plug wells. I'd like to clean up good before I install the new spark plugs. Another question is...when i replace the valve cover gaskets, do i use some kind of sealer?
... 1989 Toyota Cressida
How do you remove the cover that is above the spark plugs i know that two plugs are exposed but the cover restricts the other four plugs from being removed and i have already removed the air inlet hose and the other two hoses as well as the bolts on top off the cover and two bolts on the left side if you are facing the car
Are u talking about the valve cover??? if so remove the bolts or screws or whatever is holding it down. ... 2005 Dodge Magnum