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speedo issues

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Old Mar 2, 2012 | 08:46 PM
  #1  
lolvtec's Avatar
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From: Milford,Ohio
Car: 1991 camaro RS convertible
Engine: EFI 383 150shot nitrous.
Transmission: 700r4
Axle/Gears: 2:73...
speedo issues

my 91 vert the speedo works when it wants like it seems like it dosent want to work when its cold any ideas?
305 tbi
700r4
motor and trans have under 4k on them
pulled the dash to see if i had a wire lose but didnt find any
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Old Mar 2, 2012 | 10:07 PM
  #2  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: speedo issues

Check the tranny plug
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Old Mar 2, 2012 | 10:22 PM
  #3  
lolvtec's Avatar
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From: Milford,Ohio
Car: 1991 camaro RS convertible
Engine: EFI 383 150shot nitrous.
Transmission: 700r4
Axle/Gears: 2:73...
Re: speedo issues

Originally Posted by evilemokid94
Check the tranny plug
i did it seemed tight its like when i first start it and drive around it stays at 0 but rpms work so does the trip and odom.
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Old Mar 2, 2012 | 10:43 PM
  #4  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: speedo issues

Maybe your vss or speedo is going bad
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Old Mar 3, 2012 | 03:16 PM
  #5  
lolvtec's Avatar
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Joined: Nov 2011
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From: Milford,Ohio
Car: 1991 camaro RS convertible
Engine: EFI 383 150shot nitrous.
Transmission: 700r4
Axle/Gears: 2:73...
Re: speedo issues

Originally Posted by evilemokid94
Maybe your vss or speedo is going bad
it also onle does it in winter like cold days warm days its fine maybe its mad i brought it to ohio lol
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Old Mar 3, 2012 | 06:20 PM
  #6  
evilemokid94's Avatar
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: speedo issues

Ok I'm not sure man, hope someone else can chime in that can help
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Old Mar 3, 2012 | 10:58 PM
  #7  
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Re: speedo issues

Originally Posted by lolvtec
it also onle does it in winter like cold days warm days its fine maybe its mad i brought it to ohio lol
Possibly the speedometer circuit board. when cold the circuit trace separates and no connection which causes no operation. when warm expands and works. OR, a component on the board is going bad but they usually show up when hot.
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Old Mar 4, 2012 | 12:56 PM
  #8  
lolvtec's Avatar
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Joined: Nov 2011
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From: Milford,Ohio
Car: 1991 camaro RS convertible
Engine: EFI 383 150shot nitrous.
Transmission: 700r4
Axle/Gears: 2:73...
Re: speedo issues

Originally Posted by utilityguy2
Possibly the speedometer circuit board. when cold the circuit trace separates and no connection which causes no operation. when warm expands and works. OR, a component on the board is going bad but they usually show up when hot.
that just might be it when i was in az it never did it but this is its frist winter in ohio thanks for the help
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