Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

squeaky speedo

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Old Apr 14, 2009 | 03:54 PM
  #1  
RED_DRAGON_85's Avatar
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From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
squeaky speedo

my speedometer started squeaking all of a sudden.
as i am driving, when i hit 25 mph, it starts squeaking rhythmically, regardless of vehicle speed or engine speed.
it continues from 25 mph to over 70 mph.
under 25 it is silent, and starts abruptly at 25.

the squeaks sound like, well, squeaks, and happen at about 2-3 times per second.
like i said, its very consistent, and does not vary at all with vehicle or engine speed.

it started a few days ago with no warning of any kind.

i took the plastic plate off the gauges, and found that there is a noticeable pulse in the speedometer. it varies about 2 mph up and down in rhythm with the squeaks, and if i put my finger on the speedometer, the squeaking stops, and i feel it pulsing.

its pretty loud, and i can hear it over the radio (turned to 40) and the road noise and wind noise with the windows down on the highway.

help me.
i think i may go crazy.
i have to drive 30 minutes every day to work in this racket lol.
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Old Apr 15, 2009 | 01:14 PM
  #2  
BigBadLou's Avatar
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Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: squeaky speedo

I'd lubricate the speedometer internals with sillicone or some other good lubricant (NOT wd-40). I'd also spray some down the cable and let it penetrate with gravity.

Hope this helps.
Lou
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Old Apr 15, 2009 | 04:17 PM
  #3  
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: squeaky speedo

Lou's right.

https://www.thirdgen.org/forums/inte...eedo-woes.html

JamesC
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Old Apr 15, 2009 | 06:16 PM
  #4  
BigBadLou's Avatar
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Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: squeaky speedo

Originally Posted by JamesC
Lou's right.
James, you realize I'm married and you can't say that, right?

Lou
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Old Apr 15, 2009 | 06:27 PM
  #5  
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: squeaky speedo

Originally Posted by BigBabyLou
James, you realize I'm married and you can't say that, right?

Lou
Sorry, I was hoping that someone had faired better than me--after 40 years with the same old gal!

JamesC
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Old Apr 15, 2009 | 07:14 PM
  #6  
UNCLE TOM's Avatar
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Joined: Dec 2006
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: squeaky speedo

JamesC , is there anything on 3rd gens that you do not have a good knowledge of ? you have done so very much research that i am amazed . oh well , i quess you young kids have time to do that stuff . congrats on the 40+ . wish i could say the same , being retired military , oh well .
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Old Apr 15, 2009 | 07:58 PM
  #7  
RED_DRAGON_85's Avatar
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Joined: Jun 2008
Posts: 1,298
Likes: 2
From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: squeaky speedo

like what?
graphite powder?
lithium grease?
thats about all i have on hand at the moment.
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Old Apr 15, 2009 | 08:45 PM
  #8  
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: squeaky speedo

Originally Posted by RED_DRAGON_85
like what?
The link mentions what you need.

Hey, Uncle, you're giving me more credit than I deserve (just being respectful of my elders with that statement )

JamesC
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