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Old 07-03-2010, 03:35 PM   #1
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Unhappy 94 YJ 2.5 L - No Power

When driving on the street and it requires going up a hill, it goes down to 35 MPH and I have to downshift. On a level road I can get up to 55 but not much more. I just passed emissions in GA. Is it the catalytic converter? I have 32 x 11.5's on it.....
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Old 07-03-2010, 05:39 PM   #2
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Thats just a 4banger for ya

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Old 07-03-2010, 08:31 PM   #3
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Sorry, but like Countryboy said, that is the quirks of a 2.5 and larger tires. The easy fix is to re-gear. Not cheap, but gives more bang for the buck than go fast items like cold air intake or throttle body spacers etc.

If you are really unhappy with the performance, you may want to sell the 4 banger and replace it with a 4.0 6 cylinder. In my opinion, I say keep the Jeep you have, it looks like a nice one from your avatar and enjoy the fact you don't have to worry about speeding tickets.

Mall crawlin' in 4 Lo.
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Old 07-03-2010, 11:34 PM   #4
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My 4 cyl goes pretty fast on the down hills, To almost 70mph so I can make it on the up hills and only down shift to 4th and keep above 50mph. (I HAVE A 2" LIFT AND 30" TIRES.)
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Old 07-04-2010, 01:48 PM   #5
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i had a 93 4 banger as my first jeep and it had 33sx12.5s on it not geared and i could get up to 60-65 on flat roads. i would only have to downshift into fourth on big hills
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Old 07-13-2010, 02:15 AM   #6
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i have a 94 2.5 5 spd with 4 inch suspension and 2 inch shackles on 33.12.5's mtrs and i just got a speeding ticket for 72 in a 50 ..ive had it as fast as i could go in 5th and it was 89 mph with a little downhill but mostly flat ground
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Old 07-13-2010, 07:00 AM   #7
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Mine did the same-- heres why..

mine is a 87 YJ and with 33's I could barely get above 65... I decided to change the gears after rebuilding the motor. It came stock with 4.11's- I chenged them to 4.56's.. I now get above 80 mph and can use 5th gear all the time on the highway. A little costly and I lost some low range power- but I am not rock crawling- so it does not bother me.

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