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Unread 06-29-2013, 12:23 PM   #1
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Join Date: Feb 2012
Location: Marysville, Washington
Posts: 7
high pitch whine

Hi all,

Occationally when my jeep is running I hear a high pitch whine. It is a little concerning. Any thoughts?


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Unread 06-29-2013, 04:05 PM   #2
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1984 CJ7 
Join Date: Jun 2006
Location: Kamloops, BC
Posts: 3,797
No thoughts here, not without a general idea of where you think the whine might be coming from anyway. Engine? Drivetrain? Stereo? Wife?
'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.

The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
<------------and yes, that is her.
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Unread 06-29-2013, 04:50 PM   #3
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1985 CJ7 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,685
Check ALL of your driveline's oil levels, NOW!
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Unread 06-29-2013, 05:16 PM   #4
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1984 CJ7 
Join Date: Nov 2008
Location: Hazel, KY
Posts: 1,234
when you push the clutch does the noise go away or change volume.

I had that type noise once years ago, it must have been the throw out bearing, but like many things on the old jeep over the years, it made less and less noise and now its been years since I have heard the noise.
clutch works fine.

(guess it tired of waiting for me to fixed the problem, so it fixed itself)

when you hear the noise, take the belts off and see if you still hear the noise, could be a water pump, alternator bearing, power steering bearing.

check all fluid levels front/rear differentials, transfer case, trans, motor oil levels

coolant level,
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Unread 06-29-2013, 08:38 PM   #5
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1982 CJ5 
Join Date: Feb 2013
Location: Georgetown, South Carolina
Posts: 26
I had a whistling whine coming from under the hood on a 1982 six cylinder. Found a suggestion somewhere on this forum that the next to the last intake manifold bolt would loosen and cause a whistling at speed. That single bolt on mine was slightly loose and the whistling went away with a little light wrenching.
Walter Hill
1982 CJ5 Renegade, stock DD
1980 CJ7, frame off project, 304
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