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03-21-2008, 09:48 AM
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#1
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2 Rivet Member 
2005 25' Safari
summerfield
, Florida
Join Date: Dec 2006
Posts: 70
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high pitch whining noise..
I have a 1996 chevy tahoe, 5.7 liter. When traveling in warm to hot weather, there is a high pitch whinning noise under the car, happens even if not towing. Anyone had this problem and if so how did you solve it. Thanks
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03-21-2008, 09:52 AM
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#2
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Cyclist
2007 28' International CCD
Windermere
, Florida
Join Date: Feb 2007
Posts: 457
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Sounds like you need to call Click and Clack.
__________________
2007 28' Int CCD.
2011 F 250 Big Honking Diesel
DTV 5lnb on a tripod.
Wilson wired repeater with YAG.
Two big screens
15dB Backfire WiFi antenna and WaveMagnum
Centramatics.
Hawkshead Tire Monitors.
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03-21-2008, 10:10 AM
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#3
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Rivet Master 
Currently Looking...
West of Fort Worth
, Texas
Join Date: Aug 2006
Posts: 6,699
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Alternator?
Transmission?
Could be lots of things.
If you have a mechanics stethescope or just a wood dowel, you can probably isolate it to an area or item.
Good luck.
__________________
AIR #15800
"Wimpy" 1/2 ton 2002 GMC Sierra 4X4 Z-71 Gasser
2000 Safari SS 25'
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03-21-2008, 10:19 AM
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#4
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1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
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Is it there regardless of speed?
I'll suggest fuel pump...
Bill
__________________
*Life is Good-Camping all around the Continent*
*Good people drink good beer-Hunter S Thompson*
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03-21-2008, 10:23 AM
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#5
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
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Originally Posted by BillTex
Is it there regardless of speed?
I'll suggest fuel pump...
Bill
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I'll second the fuel pump suggestion. Especially if it has ever been replaced, they tend to hum, buzz, and howl whenever the engine is running, whether the car is moving or not.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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03-21-2008, 10:25 AM
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#6
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Rivet Master
1971 27' Overlander
Central
, Ohio
Join Date: Jun 2006
Posts: 2,365
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Does it happen all the time. Or is the annoying noise only when the other half is also in the truck....
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03-21-2008, 01:53 PM
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#7
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Rivet Master
1978 31' Excella 500
Genoa
, Nevada
Join Date: Jul 2007
Posts: 1,554
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Fuel pump. noise is good. no noise, oh oh, no start and ka ching ka $chingaling. Keep your fuel tank over a quarter full to keep coolant on the intank fuel pump.
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03-21-2008, 02:31 PM
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#8
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3 Rivet Member 
1973 25' Tradewind
Romulus
, New York
Join Date: Feb 2008
Posts: 139
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I had the same problem on my 95 burb. see if it is louder when the tank is low.
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03-21-2008, 02:52 PM
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#9
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1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
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Quote:
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Originally Posted by NevadaGeo
Fuel pump. noise is good. no noise, oh oh, no start and ka ching ka $chingaling. Keep your fuel tank over a quarter full to keep coolant on the intank fuel pump.
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My last GMC started whining when it reached 90k miles or so...
Bill
__________________
*Life is Good-Camping all around the Continent*
*Good people drink good beer-Hunter S Thompson*
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03-21-2008, 04:53 PM
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#10
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Ned
1986 31' Sovereign
North Judson
, Indiana
Join Date: Dec 2005
Posts: 5
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I have a Tahoe 2002, the rear diff gets low of the 90 weight oil and the the gears will have a whine. I had a leak after a repair and found that the gear housing was low. quieted down when I added some.
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03-21-2008, 05:59 PM
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#11
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2 Rivet Member
2005 25' Safari
summerfield
, Florida
Join Date: Dec 2006
Posts: 70
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jayray5..question
Quote:
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Originally Posted by jayray5
I had the same problem on my 95 burb. see if it is louder when the tank is low.
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can you tell how you solved your problem?? And no to your question to me.
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03-21-2008, 06:11 PM
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#12
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3 Rivet Member
1973 25' Tradewind
Romulus
, New York
Join Date: Feb 2008
Posts: 139
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solved it
My problem was a bad fuel pump--I replaced the whole tank, start up your truck and put a long extension (metal or even a broom handle) up against the tank. If you feel the vibration that is it. Put it to your ear and you will hear the whine.
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03-21-2008, 06:49 PM
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#13
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Rivet Master
1974 31' Sovereign
1970 23' Safari
1956 26' Cruiser Overlander
Lambertville
, Michigan
Join Date: Aug 2006
Posts: 1,174
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My father had a vac. leak at the tranny that had the same noise. Sounds alomost like you got a turbo at low speed...?
__________________
Dave
TAC# MI-1
Operation "Save Rudy" Strike Team (charter member)  
Yes, I am still working on it.
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03-21-2008, 07:39 PM
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#14
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Rivet Master
1984 31' Excella
Broken Arrow
, Oklahoma
Join Date: Jan 2005
Posts: 673
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Whiney sound
Mine is caused by the power steering pump (1990 GMC van).
It sounds like a turbo charger all the time the engine is running also.
Beginner
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