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Old 08-31-2012, 11:01 PM   #1
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Are TJ 4 Cylinders Enough ...

To get the job done?

THIS IS NOT A FLAME AGAINST THE TJ 4 CYLINDERS -

Since the TJ chassis weighs the same, whether it's carrying the 4 cylinder or the 6 cylinder, I was just wondering if the 4 cylinder engine has to struggle to power the vehicle.

Like I said, this is NOT a flame against the 4 cylinder.

I am still looking for a TJ, and I am pretty sure that I want the 6 cylinder. But I have seen a lot of 4 cylinders for sale. If the 4 cylinder is able to carry the vehicle without it being a strain, I may have to rethink the 6 vs the 4.

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Old 08-31-2012, 11:06 PM   #2
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go 6.....my buddy has a 4 and i have the 6.......go 6

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Old 08-31-2012, 11:13 PM   #3
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go 6.....my buddy has a 4 and i have the 6.......go 6
But, is he happy with the 4?
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Old 08-31-2012, 11:22 PM   #4
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I've had both and would stick with the six. The thing I really liked about the four cyl was it feels alot lighter and handles nicely around town - just felt more nimble and "zippy". But, mine with a mild lift and mud tires was awful on the highway.
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Old 08-31-2012, 11:27 PM   #5
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My 4 is good. I average about 18mpg. Depends on traffic. But as far as hauling. I'm kinda useless. But I have all the power I need. On and off road!! I drive slow. Hell. It's not a mustang. Now is it.... I love my 4. Wish I had a bit more torque. But. Its the 2.4. Dohc. Not the older 2.5 monster. From yesteryear !!
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Old 08-31-2012, 11:51 PM   #6
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If you are getting this as a DD get the 6. Just avoid the 99/00 models prone to head cracks and the 05/06 prone to oil pump gear issues. The 4 cylinder is almost just as good offroad if you are geared for the tire size. So it depends how you plan to use this jeep.
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Old 09-01-2012, 12:54 AM   #7
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... Just avoid the 99/00 models prone to head cracks and the 05/06 prone to oil pump gear issues...
I like the TJs, so, monetary wise, I guess I'll concentrate on the '97-'98s, & the '01s.
Anything I need to look out for on the 97s, since they were the 1st of the TJ generation?

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... So it depends how you plan to use this jeep.
As my DD, with an occasional OFF ROAD excursion.
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Old 09-01-2012, 07:13 AM   #8
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If you are getting this as a DD get the 6. Just avoid the 99/00 models prone to head cracks and the 05/06 prone to oil pump gear issues. The 4 cylinder is almost just as good offroad if you are geared for the tire size. So it depends how you plan to use this jeep.
It is 2000-2001 that had the head crack issues, 99s were fine
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Old 09-01-2012, 09:06 AM   #9
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I thought the same thing and I purchased a 2005 2.4 six speed three months ago knowing it would be an every day commuter and it does just fine.
44 mile commute and I’ve been getting 19-21 a gallon.
When my wife and daughter use it for shopping and school they never get out of fourth gear.
I haven’t towed with it yet but I see no reason I will have any problem towing my aluminum boat 20 miles out to the lake.
I wanted the best mileage with a Wrangler I could get and the 4 banger gets me there, this winter I won’t dread any snow days, I’ll look forward to them.
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Old 09-01-2012, 09:18 AM   #10
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In 4lo, the 4cyl is a beast. It keeps up with the posted speed limit on the road, just don't expect to do any uphill passing. Oil is two qts cheaper per oil change too. lol
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Old 09-01-2012, 09:54 AM   #11
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4 banger 02 tj here, I love the mpg and has more than enough power on the trail. I run 31's on road and tuck in 33's when I trail ride and either way it gets the job more than done.
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Old 09-01-2012, 12:37 PM   #12
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i dd a 4 and have 35's at 4.88's and get 17 mpg driving up hills at 55 sucks though if there big enough hills its 45
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Old 09-01-2012, 01:15 PM   #13
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Quote:
Originally Posted by vertical horizons

I am still looking for a TJ, and I am pretty sure that I want the 6 cylinder. But I have seen a lot of 4 cylinders for sale. If the 4 cylinder is able to carry the vehicle without it being a strain, I may have to rethink the 6 vs the 4.
Stick with the 6. Don't think I've ever heard someone say they have too much power, but some in this thread have said their 4 doesn't have enough.
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Old 09-01-2012, 01:22 PM   #14
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Offroad, with the exception of perhaps deep mud or snow, the four is every bit as capable as the six is.

On the highway is where the six really surpasses the four that has to work hard to keep up with 70 mph traffic.
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Old 09-01-2012, 01:26 PM   #15
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The 4 is only rated for 1000 1bs towing, that means towing a toy like a jet ski or snow mobile. You will also need to get courteous about driving on the right on the freeway, and letting other people pass you. The 4 cylinder should get you a discount of about $1000 off the purchase price, and you should get better gas mileage. If you go rock crawling then you need to go as big as you can get.
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Old 09-01-2012, 01:30 PM   #16
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...and you should get better gas mileage.
Not necessarily. While the 2.5L has the potential for better mpg, it seldom achieves it in reality because it has to be driven so much harder than the six does just to keep up with traffic.
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Old 09-01-2012, 10:08 PM   #17
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I would think the 4 would be good off road except in extreme circumstance, because of the gearing. I would want a stick shift though. On the highway, I think even our 6 with the 5 speed manual is a bit of a dog with the 33" tires. (And yes it's been re-geared). I dunno if I'd go for a 4 cylinder with big mud tires for a DD...lots of rolling resistance
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Old 09-02-2012, 02:50 AM   #18
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out of 7 wranglers, only my 1st one was a 4 cyl. but when i had it, it was stock & it was fine for my needs back then.

but i guess i'd always rather have the power there & not need it, then to need it and not have it.
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Old 09-02-2012, 02:59 AM   #19
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Ive had 5 jeeps. My last 4 were 6 cyl saharas. The first was a 92 yj 4 cyl and I
can still remember the struggles of keeping the jeep at 50 mph on the interstate or any flat road for that matter. I was running 31" tires. All of my 6 cylinders, including my current Sahara with the 4.0L feel like v8s compared to that 4 banger! And don't even try to start up a slight incline from a dead stop with the a/c on
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Old 09-02-2012, 04:37 AM   #20
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I've had both as well. All of mine have been daily drivers, and most of my driving is around town with an occasional 5-7 miles on I-10 if I'm going across town. The one 4-banger I had was fine for the most part once I took the 32" mudders off and replaced them with stock 30" tires. The AX5 trans and clutch were always, for the lack of a better word, "moody". During the Summers, I hated it. It gets miserably hot & humid here and rains every day through July & August, meaning the top and A/C are always on through these months. Turning the A/C on was like throwing a parachute out behind that thing. Between having to run the snot out of it to keep up with traffic and the clutch/trans being un-cooperative in the Summer heat, it was a fairly miserable ride during this time of the year. The rest of the year it was fine, and having a Jeep that got 19 mpg and 300 miles to a tankful wasn't bad either.
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Old 09-02-2012, 06:54 AM   #21
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Quote:
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... and you should get better gas mileage.
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Originally Posted by Jerry Bransford View Post
Not necessarily. While the 2.5L has the potential for better mpg, it seldom achieves it in reality because it has to be driven so much harder than the six does just to keep up with traffic.
I have read that on at least one truck review (Edmunds, I think?) and I wouldn't have believed it until I traded my 4 cylinder 4x4 single cab pickup in for a similar vehicle, but with a king cab and a much larger V-6. Now I believe it. There has been little difference in fuel mileage, and the 4 cylinder truck was a few hundred pounds lighter.
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Old 09-02-2012, 07:57 AM   #22
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i run a 2.5 whit 33 inch tires and stock 4.10 gearing. its my daily,yes its not fast ,but its a jeep
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Old 09-02-2012, 08:16 AM   #23
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I test drove around 25 Jeeps before I bought mine. Some had 4's and some 6's but all were sticks. I found the 6 to be more fun, the 4 didn't have the power I wanted.
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Old 09-02-2012, 09:05 AM   #24
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Love my 4banger! keep up on good maintnance and it will treat you well! just as capable as any 6cyl. jeep IMO. I wheel with alot of guys with the straight 6 and have absolutly no problem keeping up with them on the trail...
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Old 09-02-2012, 09:08 AM   #25
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Love my 4banger! keep up on good maintnance and it will treat you well! just as capable as any 6cyl. jeep IMO. I wheel with alot of guys with the straight 6 and have absolutly no problem keeping up with them on the trail...
I second this. Runnin' 33x12.5 and have no issues. Plus, Idk if I wanna drive a lifted box at 70+ MPH on Pa highways. haha
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Old 09-02-2012, 09:15 AM   #26
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The 4 is only rated for 1000 1bs towing, that means towing a toy like a jet ski or snow mobile. You will also need to get courteous about driving on the right on the freeway, and letting other people pass you. The 4 cylinder should get you a discount of about $1000 off the purchase price, and you should get better gas mileage. If you go rock crawling then you need to go as big as you can get.
Short as Jeeps are, you don't want to tow more than 1000lbs anyway, unless you live on very flat land with no curves, Jeeps are horrible at towing regardless what's under the hood. I have the four banger which works fine in the woods, just don't let a bicyclest pass you on the road because you will never be able to pass him back. I have a 4.3 vortec complete with drivetrain waiting for the Chysler transmission to completely fail. ( I do not have reverse until the transmission gets hot, I just don't park where I have to back out when it's cold) but because it does what I need it to do, I haven't rushed to swap it out.
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Old 09-02-2012, 09:36 AM   #27
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Technically, the 2.5L with a 5-speed transmission is rated to tow 2000 lbs., it is only when the 2.5L has the automatic when it is only rated to tow 1000 lbs.
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Old 09-02-2012, 10:00 AM   #28
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4cyl, 35s &4.88s. I have 0 off road issues in sand or mud. Top speed is not an issue for me, so therefore the lack of it doesn't. Bother me. I cruise comfortably @60-65 on hwy. just my opinion, but anyone lookin for 75-80. Prob shouldn't own a jeep for anything other than a play toy...lol. Buy a sports car convert able
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Old 09-02-2012, 10:17 AM   #29
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...I have a 4.3 vortec complete with drivetrain waiting for the Chysler transmission to completely fail...
190 HP? I had that in a 2 door Blazer and it pulled nicely.
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Old 09-02-2012, 11:07 AM   #30
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But, is he happy with the 4?
nope....wishing he had gotten the 6 after driving mine

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