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Unread 09-18-2005, 11:41 AM   #1
Beach Boy
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1997 Jeep Wrangler Noises

My wife and I just bought a 1997 Jeep Wrangler. There is a chirping noise that is intermittent. Sometimes, it is very loud upon ignition, sometimes just when driving with no noticeable pattern. Occasionally, it will be absent for quite a while, sometimes for a whole day. We had the belt replaced - first with a Delco belt and then with a factory belt. (The mechanic hoped there would be a slight difference in size.) It sounds like metal to metal to me, but my wife doesn't hear it that way. There is also an occasional "clunking" sound underneath the carriage. We had the whole rear end replaced right after we bought it. It had Detroit Lockers that had incorrectly installed and had chewed up the gears. Also, the rear brakes had been installed backwards on the right side. This has been corrected. It is much more stable now and the gas mileage has improved with the replacement of a very dirty air filter. The power steering fluid was empty but has been replaced.

Can someone please shed a light on these noises?

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Unread 09-18-2005, 02:10 PM   #2
tpoag
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My 97 had the same "chirping" noise. Found out it was the safety catch on the hood. The hood latches let the hood bounce just slightly and the safety catch rubs metal to metal. I smeared a little grease on it and the noise stopped.

Worth a try!!!

Terry
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Unread 09-18-2005, 02:56 PM   #3
joeyt17
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in regards to the "clunking" one of the best sources of this clunking is a result from part of the trasnfer case shifter tapping on the the tub of the jeep. its a very common problem and there are a few ways to take care of it...

heres one good site with a description on the problem, and he has tons of information/write-ups that you may find useful!

http://www.4x4xplor.com/T-CaseTSB.html

best of luck diagnosing and solving the chirping problem, hopefully this is the cause and solution ot the clunking you are experiencing
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Unread 09-18-2005, 05:28 PM   #4
cali_gurl_
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That sounds exactly like my car did!! Turns out it was the catalyzer that was broken. There's an 8-year/80,000 mile warranty on it. I have a 1997 wrangler, and of course my warranty had expired a months earlier! If that's the same case for u, it's like $500 to get it fixed....
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Unread 09-18-2005, 08:46 PM   #5
erickpl
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Do that TSB yourself. 20 minute job at most. Also the hood does make a squeak and I did have my catalytic replaced. No squeaks or clunks here now!
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Unread 09-19-2005, 07:12 AM   #6
river rat
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Mine has so many knocks and squeeks it sounds like a drumset
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97 TJ. Full width D60 w/Detroit, Alloys and 5.89 gears. Full width D44 spooled, 60 outers, Warn lockouts. 6" Rock Krawler Gen II LA. 11 gallon cell behind the rear seat. 37" Maxxis Trepador competitions on 17" Stazworks double internals, blazay, blazay.....
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Unread 09-19-2005, 07:14 AM   #7
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97 TJ. Full width D60 w/Detroit, Alloys and 5.89 gears. Full width D44 spooled, 60 outers, Warn lockouts. 6" Rock Krawler Gen II LA. 11 gallon cell behind the rear seat. 37" Maxxis Trepador competitions on 17" Stazworks double internals, blazay, blazay.....
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Unread 09-19-2005, 08:44 AM   #8
erickpl
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Can you perhaps explain a bit more about whereabouts the noise is coming from?

Engine bay (belts)
Front of vehicle (hood latches not securing properly)
underneath vehicle (transfer case needing TSB or catalytic converter)
Passenger or driver side? (passenger = catalytic?, driver = t-case)

It would help us isolate what it might be. Have you tried beating on the catalytic while it is cool? If it rattles, that is probably your source of noise. Have you tried lifting up on the hood while it is latched? If it squeaks, that may be the source...

IE Tell us more.
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Unread 09-19-2005, 09:03 AM   #9
Scuba Jeepster
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Quote:
Originally Posted by Beach Noy
My wife and I just bought a 1997 Jeep Wrangler. There is a chirping noise that is intermittent. Sometimes, it is very loud upon ignition, sometimes just when driving with no noticeable pattern. Occasionally, it will be absent for quite a while, sometimes for a whole day. We had the belt replaced - first with a Delco belt and then with a factory belt. (The mechanic hoped there would be a slight difference in size.) It sounds like metal to metal to me, but my wife doesn't hear it that way. There is also an occasional "clunking" sound underneath the carriage. We had the whole rear end replaced right after we bought it. It had Detroit Lockers that had incorrectly installed and had chewed up the gears. Also, the rear brakes had been installed backwards on the right side. This has been corrected. It is much more stable now and the gas mileage has improved with the replacement of a very dirty air filter. The power steering fluid was empty but has been replaced.

Can someone please shed a light on these noises?
It can be several things. Crawl under the jeep, have your wife rock it back and forth, jumping on the bumper some. Once you isolate it to a general area we can help you diagnose it.
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