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05-22-2013, 06:17 PM
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#1 |
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Registered User
Join Date: Feb 2012
Location: Seattle WA
Posts: 15
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Squealing at 60 mph
My 71 chevy squeals at 60+mph. Is this due to too high of gears or something more serious?
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05-22-2013, 06:19 PM
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#2 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: Squealing at 60 mph
Too vague of a post to answer realistically.
Where is the squeal coming from exactly? It's probably a loose fan/alternator belt. Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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05-22-2013, 06:25 PM
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#3 |
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Registered User
Join Date: Feb 2012
Location: Seattle WA
Posts: 15
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Re: Squealing at 60 mph
Checked the belts and the whole engine was gone through last year. It only happens when I push past 60 on the highway. I cannot replicate the sound otherwise to hear where it comes from. I think it is the gears but wanted a confirmation or denial.
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05-22-2013, 06:28 PM
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#4 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: Squealing at 60 mph
Do you mean it's a high pitched "whine"??? That could be gears... or the transmission...
My truck only squeals when you sneak up behind it, and pinch the rear bumper...  Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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05-22-2013, 06:33 PM
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#5 |
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Registered User
Join Date: Feb 2012
Location: Seattle WA
Posts: 15
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Re: Squealing at 60 mph
I guess it could be a whine. It gets louder the faster I go and quieter when I back off the gas...
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05-22-2013, 06:34 PM
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#6 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: Squealing at 60 mph
Check the basics first like tranny fluid, and diff oil.
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
Quote:
Quote:
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05-22-2013, 06:42 PM
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#7 |
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Registered User
Join Date: Feb 2012
Location: Seattle WA
Posts: 15
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Re: Squealing at 60 mph
copy that
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05-22-2013, 07:16 PM
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#8 |
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Active Member
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Squealing at 60 mph
Could also be tires. One of my other vehicles has aggressive tread tires and they whine at certain speed and on certain pavements. Rear axle gear noise is a common problem with some trucks (mine included) and also tranny gears.
No sure way to identify it other than checking to see if the noise comes and goes when you let off the pedal. If it's tires the noise doesn not go away when you let off the pedal. If it's rear axle it will ease off. On the transmission, you can usually put in neutral to see if it stays or goes away. Do some experimenting and see if the noise changes by doing the above. Maybe even go 60+ going downhill and let off the gas.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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05-22-2013, 07:34 PM
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#9 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Squealing at 60 mph
Could be a lot of things. From your history I'd say a good bumper to bumper inspection is needed and would be a good starting point. Do you have the service manuals for it? They can be downloaded here at this link.
http://67-72chevytrucks.com/vboard/s...d.php?t=558016
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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