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Old 01-03-2011, 12:08 PM   #1
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Loss of power when climbing a hill

I have 91 yj when climbing a hill it seems to lose power and I have to clutch it it and work the gas. It's fuel injected and the 2.5 any ideas thanks

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Old 01-03-2011, 12:12 PM   #2
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What size tires and gears?

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Old 01-03-2011, 12:19 PM   #3
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31.10.50 4:10 gears
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Old 01-03-2011, 02:30 PM   #4
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Catalyic converter blocked (rattles)??....air filter blocked?..sounds like engine is suffocating when u open the throttle up!!?..check air breather pipes too,..going from rocker cover to the air filter box..remove the pcv valve too and clean out with a pin in the tiny hole that runs through the bottom of it
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Old 01-03-2011, 03:57 PM   #5
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that has been happening to me too. i also have a 2.5l fuel injected.
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Old 01-03-2011, 06:51 PM   #6
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Mine to same year jeep, same gears, same tires, I blame it on my tire size and the 2.5 just doesn't have power.
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Old 01-03-2011, 11:35 PM   #7
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I have checked out everything but the cat convert. I put a new air filter in today but everything else checked out
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Old 01-04-2011, 12:00 AM   #8
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4 banger
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Old 01-04-2011, 02:40 AM   #9
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Quote:
Originally Posted by Copenhagencowboy View Post
I have checked out everything but the cat convert. I put a new air filter in today but everything else checked out
That is quite a pricey item- I have a 4.0L and experience a similar problem- it almost seems as if the engine is being "smothered". I have replaced my airfilter to a sport filter, replaced by plugs and ignition wires, fuel filter, yet when I went off roading on Friday I couldn't manage to climb the dunes as I am supposed to with a 4.0L
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Old 01-04-2011, 02:53 AM   #10
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Sounds like a plugged cat to me. I have a 93 2.5l and it is on 33x12.50's and does fine up hills. Just gotta down shift and get those rpm's up!

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