1996 jeep cherokee spark plug question
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 48
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From: Baltimore, MD
Year: 1996
Model: Cherokee
Engine: 4.0
so im new with my jeep, and well yea anyway i was wondering wut do you think the best kind of spark plugs are for a jeep cherokee? all opinions are wanted...
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 48
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From: Baltimore, MD
Year: 1996
Model: Cherokee
Engine: 4.0
i used to have a 04 civic and i used ngk and i liked it, i just didnt kno if jeep had diff type or anything, im new to the jeep thing ya kno
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 48
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From: Baltimore, MD
Year: 1996
Model: Cherokee
Engine: 4.0
so i guess its champ vs. ngk
i def was digging my ngk plugs in my honda, but this aint no honda anymore. i never used champ in any of the cars ive owned, maybe its worth the show, any other opinions?
i def was digging my ngk plugs in my honda, but this aint no honda anymore. i never used champ in any of the cars ive owned, maybe its worth the show, any other opinions?
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Senior Member

Joined: May 2008
Posts: 817
Likes: 7
From: Michigan
Year: 1996
Model: Cherokee
Engine: 4.0
I picked up a 2001 XJ in november, the guy had all the maint records. The Jeep ran "OK" I checked the plugs just for grins, ends up it had Bosch platinums. I switched them out to the NGK's, (that the parts catalog calls for).....Night and day differance....the thing screeeems now, with the correct plugs.
Most of the time the incorrect plug will cause the engin to run poor, I've seen this alot. Mis-fires, rough idle, hard to start.
Check the tag on your fire wall, run those plugs with the correct gap..... .035
Last edited by BLKXJ 96; Mar 7, 2009 at 10:42 PM.
Junior Member
Joined: Feb 2009
Posts: 73
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From: Toledo, OH
Year: 1995
Model: Cherokee
Engine: 4.0
X2........A set of Champion RC12YC with a .035 gap......Theee end!!!!!!!
I picked up a 2001 XJ in november, the guy had all the maint records. The Jeep ran "OK" I checked the plugs just for grins, ends up it had Bosch platinums. I switched them out to the NGK's, (that the parts catalog calls for).....Night and day differance....the thing screeeems now, with the correct plugs.
Most of the time the incorrect plug will cause the engin to run poor, I've seen this alot. Mis-fires, rough idle, hard to start.
Check the tag on your fire wall, run those plugs with the correct gap..... .035
I picked up a 2001 XJ in november, the guy had all the maint records. The Jeep ran "OK" I checked the plugs just for grins, ends up it had Bosch platinums. I switched them out to the NGK's, (that the parts catalog calls for).....Night and day differance....the thing screeeems now, with the correct plugs.
Most of the time the incorrect plug will cause the engin to run poor, I've seen this alot. Mis-fires, rough idle, hard to start.
Check the tag on your fire wall, run those plugs with the correct gap..... .035
I am a new jeep owner (which happens to need new plugs) so this info is like gold to me too. Some vehicles like specific plugs, my '86 VW scirocco would not run with anything but Bosch plugs.
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 48
Likes: 0
From: Baltimore, MD
Year: 1996
Model: Cherokee
Engine: 4.0
thanks fo rthe info, im guessing ngk. ille report how the difference is, i dont kno wuts in there now, ive only had da jeep for bout a month... but ill def report. thanks for the info. like the other guy said GOLD INFORMATION!
Thread Starter
Junior Member
Joined: Feb 2009
Posts: 48
Likes: 0
From: Baltimore, MD
Year: 1996
Model: Cherokee
Engine: 4.0
so dumb question but for clarification ngk u say? the top of yer message confused me with the champ rc12yc part. ill take yer word u seem to kno yer ****
Senior Member
Joined: Aug 2008
Posts: 971
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From: tan house white shutters key's under the flower pot
Year: 1996
Model: Cherokee
Engine: 4.0
4.0 is picky in the fact it wants plane ole champions that came from the factory. the newer direct ignition are ngk, stick with what the factory used.
older 4.0's act funny on certain plugs, champion only, done.
older 4.0's act funny on certain plugs, champion only, done.
CF Veteran
Joined: Sep 2011
Posts: 4,172
Likes: 4
From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
1999 and older use Champion. 2001-2001 use NGK. All at .035
I put Bosch in my 98 and it was the biggest waist of money. I had to change them out after 2 days because they made it run crap.
I put Bosch in my 98 and it was the biggest waist of money. I had to change them out after 2 days because they made it run crap.


