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post #1 of (permalink) Old 09-18-2002, 03:41 PM
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TJ Power Loss

OK...
I have a 6 cyl. 97 TJ with around 114k miles.
My exhaust "area" has been rattling at start and low power moments for a little while now. My Check Engine light came on a month ago and the computer said it was the O2 sensor.
NOW... the jeep will loose power and sputter (with some backfiring) every once in a while (on the highway and off) for a minute or so and then drive fine.
I was hoping to get some suggestions as to what it is and what the solution would be, before I take it in and have it checked out. (if it is the cat-converter, how much $$ am I looking at for this repair?)

thanks...
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post #2 of (permalink) Old 09-18-2002, 05:29 PM
 
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Re: TJ Power Loss

Welcome to the board, please make sure you read <a target="_blank" href=http://tellico.off-road.com/ubbthreads/showflat.php?Cat=&amp;Board=offroadjeepshort&amp;N umber=886747&amp;page=0&amp;view=collapsed&amp;sb= 5&amp;o=1&amp;fpart=>this post</a>.

Sounds like a clogged cat to me. The rattling sound could be either a heat shield or the catalyst in the converter that's broken apart and bouncing around.
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post #3 of (permalink) Old 09-18-2002, 06:02 PM
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Re: TJ Power Loss

Have you changed your fuel filter? That may fix the power problem.

Kriss
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post #4 of (permalink) Old 09-18-2002, 07:14 PM
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Re: TJ Power Loss

cat cat cat.....they all go bad at about 100k.. less if you wheel it at all
i think there is a very long warranty on it ... might wanna check..... its probably 100k though
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post #5 of (permalink) Old 09-19-2002, 08:57 AM
 
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Re: TJ Power Loss

Yes it is the cat, everyone I know has had to replace their cat on the 97 TJ, its known to have problems, I had to replace the one on my old 97 TJ after about 35,000 miles, im surprised that you havent had to sooner.
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post #6 of (permalink) Old 09-19-2002, 09:46 PM
 
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Re: TJ Power Loss

I havn't replaced my cat on my '97 tj w/ 68k yet and i beat the living day lights out of it. I'll have to keep it in mind though since it is getting a little slugish but i don't think the crack in the manifold is helping.

BarrelRoll
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post #7 of (permalink) Old 09-20-2002, 05:36 PM
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Re: TJ Power Loss

Extended Federal Emissions warranty on converters--- 8yr/80k miles.

Lucky for consumers, 'cause they rattle All the Time!!
post #8 of (permalink) Old 09-23-2002, 01:37 PM
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Re: TJ Power Loss

Hey... thanks for the info... looks like there is a new Cat. in my future.
post #9 of (permalink) Old 09-23-2002, 03:56 PM
 
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Re: TJ Power Loss

well if it makes a noise just at idle why not just get a automotive stethascope (spelling). It comes with a metal rod that you place on different parts of the automobile and you can pinpoint where exactly the noise is coming from.
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