Pulling all of the catalyists off of the KJ will probably cause even more damage. Without each of the catalyist pulling out the caustic gases, the O2 sensors will tell the computer to correct the air/fuel mixtures to compensate which will lead to poor performance, the CEL being illuminated constantly, and damage to your cylinder heads and pistons.

If the parts are all smashed up (I didn't know that) than you really need to get the KJ into a muffler shop for repairs. The KJ will be a much happier vehicle when the exhaust system is functioning properly.

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks

ok so i went back in to chrysler this morning. they had a technician ride with me and as usual the car worked perfectly, until we turned around. flashing check engine light and low power. they ran the codes and found multiple misfires. there is something in the engine that is causing a piston to get hung up. its all covered under warrantee but this sucks. once a month i have to pay a crap load of money to fix some bs. may be time for another jeep

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they are replacing the intake and exhaust manifolds. there may be more but i should get the jeep back by either tomorrow or monday

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so they replace the manifolds and find out my dented cats are failing. best part is that they are replacing it under warrantee

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haha, wth? They replaced the intake and exhaust manifold for a misfire? Surprised that didnt fix it.

Could be a clogged cat, now that makes some sense.

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LOST KJ'S
Where are you going???
Current Jeep: 2004 Jeep Liberty
-Atlantic Blue
-Air Ride Rear Suspension ; OME/Rustys Lift ; Powertrax Locker ; Moog Lower Ball-Joints ; 245/70/16 Yokohama Geolander A/T-S's on MOABS ; Flowmaster 50 SUV
Lost #007082
http://www.cardomain.com/id/jeepjeepster

Who's the man

the last time i was off road i hit the sheet out of one one the cats. it didnt look that bad but i guess it was enough to have it mess up. o well now i have a ton of new parts in the jeep. its just driving me crazy i havent driven it since last week. is there an aussie locker for the rear? i only see them for chreokees

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Short answer: Yes.

Long answer: There are more than one thread about this very subject in the 4x4 section..

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A Jeep and a couple Fords.


I would wreck Kate Hudson.

i got the jeep back today. my mileage has jumped from 15.4-18.6

they replaced all the valve heads and 2 pistons also. there is a huge list of stuff they replaced. my exhaust is noticeably louder. like it almost vibrates the car loud.

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So rather than start a new thread, I'm resurrecting an old one with the perfect title. I was sitting at a stoplight today waiting to turn left, and when the traffic light changed and I stepped on the gas, the engine hesitated a bit, then shuddered and the Check Engine Light flashed on and off maybe three or four times, slowly. By the time I finished the turn, the CEL was off and the engine was running smoothly again. With a flashing CEL, I'd have pulled over right away, but there was only enough time to get out of the intersection before the light was out. Drove 50 miles to work and it ran fine and the light stayed out.

Tried the ignition key trick to check for codes and nothing came up, but obviously it was a misfire. I'm hoping it doesn't recur on the way home tonight and was just a hiccup, a bit of dirty fuel or something. Fuel injectors and throttle body were cleaned and plugs changed a month or so ago.

Anyone else have the light flash for just a short time like that?

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2002 KJ (un)Limited 4x4: OME HD lift, ARB bullbar, Warn 4X flood lights, Skid Row tranny skid, Mopar engine, transfer case and fuel tank skids, Boulder Bars, 245/75/16 Goodyear Duratracs on Moab wheels.

I had the missfires, loss of powwer, and the flashing cel, a few months back, turns out the O2 sensors playing up. I have now had them replaced.

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SOME SAY

I'm Toight... Toight lik a Toiger.

And

When I go to the Toilet, Chuck Norris is there to tear the squares off for me.

"Pass me another one Chuck, and keep em coming!! On sencond thoughts..Go get the hose"

Well, made it home from work OK. No sign of the CEL. Knock on wood.

I had that happen when my throttle position sensor went out a couple months back...

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-Vicki-
'02 Renegade - "Forest Ops" Edition Locked, not stock and ready to roll.
ARB bumper, Super Skink Sliders, OME/Rancho lift, Treadwright Wardens 245/75/16, Skid Row engine skid, Mopar Skids, JBA 4.5 UCAs, 4.10s and Detroit lockers Coming soon: new winch, ?????