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Thread: Jeep 4 cyl. engines any good?

  1. #1

    Jeep 4 cyl. engines any good?

    I'm browsing for a cheap jeep wrangler or cherokee for my wife to drive around in the winter and something I can use for an alljeep "billboard." I've had 3 cherokees and like them, but have kind of always wanted a wrangler. I'm finding that the cheaper of the wranglers for sale around pretty much all have the 4 cyl engine.

    I know the 4.0 is a great motor if maintained, but have no experience with the jeep 4 cyl. Is it a 200k + engine?

    my plans for either the Cherokee or Wrangler:

    2-3" lift
    32's or 33's
    locker in rear
    sliders, bumpers, roof rack, other accessories
    Alljeep.com bling

    We'll take this out and wheel it of course, but the 'runner (which will also receive some alljeep bling) will be the rig to bang-up on.

    so, back to my question:

    Is the 4 cyl worth getting, or should I spend the extra $1k-ish for the 4.0??

    Thanks guys!

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  3. #2
    really? no input?? anybody?

  4. #3
    Undecided Cascadia's Avatar
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    I don't have any major input but I had a 4 cyl and a 4.0 at the same time and in a TJ and an LJ and the 4.0 obviously had way more power and the 4 cyl. did not. The 4 cyl. even had 4.88 gears but it really didn't seem to be peppy at all. I could start off the line with my LJ on 37's with 4.56 gears and a 4.0 and the TJ with 33's and 4.88 gears and a 4 cyl. and the TJ struggled to keep up and I was just driving normal in the LJ. I'd hold out for a 4.0 but that's just me cause I've had 5 4.0's and I've liked them all other than every exhaust manifold has cracked. Other than that, they've all been great!
    The only constant is change.

  5. #4
    thanks cascadia. would you say that the 22r in your toyota pickup is more peppy?? If so, ill prob hold out for the 4.0

  6. #5
    Registered User utjb57's Avatar
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    I have a 4 cyl in my yj and been driving it for 8 years
    Started crawling it about 2 and half years ago and love it
    I have since put full witdth axles and lower gears and still crawls fine
    with no issues.
    Wish I had lower gears for street but that will come.
    Love the torque from the 2.5

  7. #6
    Undecided Cascadia's Avatar
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    No definitely not. The toyota does have 37's and 4.10's though. I think a 22r is the slowest motor I have ever owned. No, I know it's the slowest. I'd still hold out for the 4.0 though.
    The only constant is change.

  8. #7
    when ever where ever. YJ_Auzzy's Avatar
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    i love my 4-cylinder, shes at 122K miles and has no problems. turns my 39.5"s just fine and i still average bout 20mpg out of it. loved it as a daily driver, held highway and freeway fine except passing semis...wind is scarey in a box lol

    Midstate Jeeparts & 4Wheeldrive ~ 435 893 eight eight one one ~ 9-6 Mon-Fri

  9. #8
    Quote Originally Posted by YJ_Auzzy View Post
    i love my 4-cylinder, shes at 122K miles and has no problems. turns my 39.5"s just fine and i still average bout 20mpg out of it. loved it as a daily driver, held highway and freeway fine except passing semis...wind is scarey in a box lol
    what gearing do you have?? I'm assuming you've got one ton axles?? I like the sound of 20mpg's!!

  10. #9
    Binders Fulla Expo JL Rockies's Avatar
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    If it's a 2.8 diesel with a turbo strapped to it.... then it's an excellent Jeep 4 cylinder engine.
    Patriot before expo.

    "JL Rockies is a sexy, expo-approved juggernaut of rad." - Tacoma

  11. #10
    when ever where ever. YJ_Auzzy's Avatar
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    i'm running nothing now lol in the process of swapping axles from 3/4 tons to 1 tons with 5.86's, i had 5.38's and it performed well.

    Midstate Jeeparts & 4Wheeldrive ~ 435 893 eight eight one one ~ 9-6 Mon-Fri

  12. #11
    Registered User 4Runner's Avatar
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    my dad has a yj and he says he gets about 25 to 30 mpg out of his 2.5. his also has a 6 inch lift with 31s and 4.88. and it is no ball of fire. and has 90,000 miles

  13. #12
    Extreme User rholbrook's Avatar
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    Get the 4.0. I have a 97 TJ with the 2.5 and 125K miles. You have to gear it for the bigger tires. If your driving around town its fine, on the hwy, you will struggle to stay in 5th an any incline, even a slight incline. I have a 04 LJ with the 4.0 and its night and day difference.

    I drove the TJ to St George once and averaged 18 mpg and I was floored in 4th gear most of the way. I have 4.10s in it. 4.88 would have definitely helped.

  14. #13
    Wow my buddy was just complaining that he was only getting 13mpg out of his 4 banger... Something must be wrong with his. Aaron Clough had a turbo on his yj with a 4cylinder. He ran the same motor in his urock buggy..he Seemed to like it
    Robby Flandro
    http://www.lowrangeoffroad.com/
    ROCKODYNAMIC- sorta like aerodynamic but for rocks

  15. #14
    Overlander spencevans's Avatar
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    I would avoid the 2.5 at all costs. My buddy had a '93 with the 4 cylinder and it was a complete dog. The little engines will get about 17-18 mpg in stock form and that only goes down hill when you add the bigger tires.

    Get the 4.0 liter, it is rated at the same MPG as the 2.5 liter so your not losing anything. I have never heard a 4.0 owner wish they would have went with the 2.5 liter but most guys with the 4 banger wish they had the legendary 4.0.
    2003 Mercedes G500

    '85 Mitsubishi Pickup, 2.3 Turbo Diesel, Atlas 5.0, Lockers, 14" lift, Coilovers

  16. #15
    Ive had my 2.5L YJ for several years now, 33"s and 4.88s gets 18mpg city. It's too much work to try and hold 70+mph on the freeway. Fun to drive around town and crawls great though. Test drive a couple good 4cyl and 6cyl wanglers and compare them yourself.
    I'm afraid your signature sucks.

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