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Funny whistling/squeaking

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Old Nov 19, 2004 | 11:14 AM
  #1  
Brian Murray's Avatar
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Joined: Apr 2004
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From: Sacramento, CA USA
Car: '91 Pontiac Firebird
Engine: 4-bolt 350 TBI w/ Holley ProJection
Transmission: T-5
Axle/Gears: 3.08, 10bolt
Funny whistling/squeaking

I started her up this morning, let it warm up for about 5 minutes and then let-er-rip down my street since I was late for school. Well, when its accelerating quickly, or even just free-revving quickly it squeaks! I think it might be my injectors, or this exhaust leak thats been getting progressively worse...

When I got to school I had about 2 minutes to have a look at what was making the noise, so with the motor on in neutral i revved it and it sounded liek the noise was coming from the exhaust, but it was pretty loud on the left side of the motor so I couldnt really tell where it was coming from.

Should I run some injector cleaner through it? I'm already replacing the exhaust with a Pacesetter catback.

TIA.
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Old Nov 19, 2004 | 11:31 AM
  #2  
ME Leigh's Avatar
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Joined: Jan 2002
Posts: 3,852
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Check you powersteering fluid level. Injectors aren't going to sqeal. Exhaust isn't really going to sqeal, it will click and tap like the injectors. Check your belts also.
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Old Nov 19, 2004 | 04:33 PM
  #3  
Brian Murray's Avatar
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Joined: Apr 2004
Posts: 91
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From: Sacramento, CA USA
Car: '91 Pontiac Firebird
Engine: 4-bolt 350 TBI w/ Holley ProJection
Transmission: T-5
Axle/Gears: 3.08, 10bolt
Originally posted by ME Leigh
Check you powersteering fluid level. Injectors aren't going to sqeal. Exhaust isn't really going to sqeal, it will click and tap like the injectors. Check your belts also.
Just did PS. My belts were squeaking awhile back but it went away...

I was thinking it might be exhaust due to the fact that I have a HUGE leak and I was thinking that the hole might be shaped so that it whistles? Whatever the case is, it went away when i drove home, its most likely the belts.

thanks.
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Old Nov 19, 2004 | 09:11 PM
  #4  
305Camaro84's Avatar
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Joined: Oct 2004
Posts: 53
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From: Center Valley PA
Car: 1894 Camaro Berlinetta 305 auto
Engine: 305 LG4
Transmission: TH 700 R4
squeak

could it be your alternator, cause that will squeall but its more like a whine
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Old Nov 19, 2004 | 10:03 PM
  #5  
Brian Murray's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2004
Posts: 91
Likes: 0
From: Sacramento, CA USA
Car: '91 Pontiac Firebird
Engine: 4-bolt 350 TBI w/ Holley ProJection
Transmission: T-5
Axle/Gears: 3.08, 10bolt
Re: squeak

Originally posted by 305Camaro84
could it be your alternator, cause that will squeall but its more like a whine
just replaced that too...

And it only did it while cold... and only while the engine was loaded and accelerating. I'ts probably the belts thanks for the input all.
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Old Nov 22, 2004 | 05:21 PM
  #6  
Air_Adam's Avatar
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Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Betcha its your belt(s). Its a common problem. If its V-belts, just replace them, they are dirt cheap. If its a serpy belt, try some belt dressing after you check the tentioner.
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