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Squeeling when heat is on?

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Old Mar 1, 2009 | 08:13 PM
  #1  
kcallais's Avatar
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From: Tyndall AFB, FL
Car: 1985 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: garbage 2.73
Squeeling when heat is on?

Everytime I turn my heat on. the hear a squeeling sound coming from the vents. How do I get to the fan to check it out?
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Old Mar 2, 2009 | 07:51 AM
  #2  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Squeeling when heat is on?

Originally Posted by kcallais
Everytime I turn my heat on. the hear a squeeling sound coming from the vents. How do I get to the fan to check it out?
There's pic of the fan housing in the following pic:

https://www.thirdgen.org/forums/elec...aro-rs-no.html

Remove the necessary wiring and bolts and pull the fan and cage out. I'd suggest stuffing a towel/rag under the housing to catch the screws which you will undoubted drop (Don't ask me how I know!).

JamesC
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Old Mar 2, 2009 | 03:50 PM
  #3  
Brennan's Avatar
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From: Corner Brook, NL
Car: 1984 Z28 HT,2006 2500HD
Engine: 5.7L, 6.6Llbz dmax
Transmission: 700R4, 6 speed allison
Axle/Gears: worn out 3.73 posi
Re: Squeeling when heat is on?

before you do that you should probably check your alternator and belt
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Old Mar 2, 2009 | 05:51 PM
  #4  
JamesC's Avatar
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Joined: Aug 1999
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Squeeling when heat is on?

Originally Posted by Brennan
before you do that you should probably check your alternator and belt
How would the alt/belt impact noise from switching on the heat?

JamesC
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Old Mar 2, 2009 | 06:44 PM
  #5  
Brennan's Avatar
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Joined: Jul 2007
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From: Corner Brook, NL
Car: 1984 Z28 HT,2006 2500HD
Engine: 5.7L, 6.6Llbz dmax
Transmission: 700R4, 6 speed allison
Axle/Gears: worn out 3.73 posi
Re: Squeeling when heat is on?

he said it squeals when he turns on the heat. the blower motor draws a nice bit of power so the extra drain on the alternator could cause it to squeal if the belt was loose or bad
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Old Mar 2, 2009 | 07:13 PM
  #6  
kcallais's Avatar
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Joined: Mar 2005
Posts: 132
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From: Tyndall AFB, FL
Car: 1985 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: garbage 2.73
Re: Squeeling when heat is on?

Nah, it was the blower motor. Pulled the cage off and it squeeled when I spun the shaft.
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Old Mar 3, 2009 | 12:14 AM
  #7  
8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Squeeling when heat is on?

Is true about the belt though-mine will do that with
a loose belt.
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