E3 plugs?
#17
Senior Member
Joined: Dec 2011
Posts: 669
Likes: 0
From: Central Arkansas
Year: 1996
Model: Cherokee
Engine: 4.0L
I didn't have e3's, I had Bosch platinum +4's. Had misfire codes and a rough idle, poor acceleration. I replaced them with Champion coppers along with a tuneup and the difference was remarkable. Of course the cap, rotor, wires and coil were replaced as well, but I can tell you the +4's looked like **** for only a few thousand miles service. Champion coppers couldn't run any better...
#18
Originally Posted by cranesrule
I didn't have e3's, I had Bosch platinum +4's. Had misfire codes and a rough idle, poor acceleration. I replaced them with Champion coppers along with a tuneup and the difference was remarkable. Of course the cap, rotor, wires and coil were replaced as well, but I can tell you the +4's looked like **** for only a few thousand miles service. Champion coppers couldn't run any better...
#20
Originally Posted by bigtony
how about Denso or Autolite copper plugs? Will those perform as well as the Champions or is there something specific about the Champions that makes them the "gotta have " plugs on your 4.0?
#21
CF Veteran
Joined: Aug 2010
Posts: 1,150
Likes: 1
From: Nashville, TN
Year: 1997, 1993
Model: Cherokee
Engine: 4.0L
#23
CF Veteran
Joined: Oct 2011
Posts: 4,440
Likes: 3
From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Our rigs love Champion Coppers. And they're basically the cheapest out there. Don't second guess em. Just use em and call it a day. You won't regret em
#24
I would get the accel tune up package for $75, but I have E3s in my Jeep and Toyota, so I'm just a shady tree mechanic, but I noticed a big difference in the high Rev 4 cylinder, and a decent gain in the low Rev Jeep. Jeep could still use cap and rotor though.
#25
CF Veteran
Joined: Nov 2011
Posts: 2,433
Likes: 6
From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
Effing Tires Plus put autolites in mine. They didn't even gap them. They messured from .045" on up to .055". It handled them well though. The only missfiring I got was on cold starts (you know, -25*F or colder) and revved it a little. I replaced them with champ platinums *PROPERLY GAPPED* and felt no difference. This winter hasn't been nearly as cold though and the jeep has been parked since late December.
My dad put Bosch +4s in his 96 and it feels fine. It gets up and goes GREAT for 33s on 3.55 gears.
Just keep in mind the factory uses certain branded parts for a reason.
My dad put Bosch +4s in his 96 and it feels fine. It gets up and goes GREAT for 33s on 3.55 gears.
Just keep in mind the factory uses certain branded parts for a reason.
#26
Thread Starter
CF Veteran
Joined: Jan 2012
Posts: 1,057
Likes: 2
From: Nazareth/Pen Argyl, Pennsylvania
Year: 1989
Model: Cherokee
Engine: 4.0L 242ci I6
I wish I had an Oreilly by me, I hear they have good stuff. I know borg warner is good in whatever they make, so I would ****** that up in a heartbeat. And I have one more question about mpg's, would having 233,000 on it make me get 5mpg or is there something else wrong?
#27
Senior Member
Joined: Dec 2011
Posts: 669
Likes: 0
From: Central Arkansas
Year: 1996
Model: Cherokee
Engine: 4.0L
Originally Posted by XJ.89.Limited
I wish I had an Oreilly by me, I hear they have good stuff. I know borg warner is good in whatever they make, so I would ****** that up in a heartbeat. And I have one more question about mpg's, would having 233,000 on it make me get 5mpg or is there something else wrong?
I used Borg Warner wires, cap, rotor and coil from O'Reilly's and I am extremely pleased with the results.
#28
Seasoned Member
Joined: Oct 2010
Posts: 259
Likes: 1
From: Eastern Oregon
Year: 2000 Sport
Model: Cherokee
Engine: 4.0
I wish I had an Oreilly by me, I hear they have good stuff. I know borg warner is good in whatever they make, so I would ****** that up in a heartbeat. And I have one more question about mpg's, would having 233,000 on it make me get 5mpg or is there something else wrong?
#29
Thread Starter
CF Veteran
Joined: Jan 2012
Posts: 1,057
Likes: 2
From: Nazareth/Pen Argyl, Pennsylvania
Year: 1989
Model: Cherokee
Engine: 4.0L 242ci I6
Thanks, my dad is hell bent on the mileage affecting the mpg's. I never believed him, but i wanted to make sure. I definitely have some work to put in. Good thing winter down here in PA hasn't been so bad this year. Working in the cold sucks. Thanks for all the comments guys!
#30
Originally Posted by XJ.89.Limited
I wish I had an Oreilly by me, I hear they have good stuff. I know borg warner is good in whatever they make, so I would ****** that up in a heartbeat. And I have one more question about mpg's, would having 233,000 on it make me get 5mpg or is there something else wrong?