Interior Discussion about interior restoration, repairs, and modifications.

if it aint broke......... dont fix it!

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Old Aug 10, 2007 | 10:27 AM
  #1  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
if it aint broke......... dont fix it!

my vents dont work right anymore! (front/defroster/feet)

i know that my vaccum lines are fine because when i remove them from the unit in the dash, and connect vaccum manually, the vents all work perfect.....

there are 2 pieces that the hoses plug into, the right hand side controls the vents, and the left hand side controls the hot/cold

i've actually been tyring to figure this out for a while, i took mine apart and now i cant get it to work how it used to...... i took it apart because there was a piece of plastic broken and i wanted to see how it worked

has anyone had this problem with these stupid vents???
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Old Aug 11, 2007 | 05:59 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: if it aint broke......... dont fix it!

Originally Posted by bigchief
has anyone had this problem with these stupid vents?
Nearly everyone . Often the vac control valve is the culprit (the piece with the 'fingers/nipples' in the following pic:

https://www.thirdgen.org/forums/atta...duct010707.jpg

JamesC
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Old Aug 11, 2007 | 10:47 AM
  #3  
86NiteRider's Avatar
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From: Somewhere around the South Side of Chicago just crusin' in one of the Niteriders
Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Re: if it aint broke......... dont fix it!

It usually happens when the factory radio is removed and an aftermarket raido is installed. I think the vac line get disconnected when reinstalling the radio.
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Old Aug 12, 2007 | 01:47 AM
  #4  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

it has nothign to do with the radio......

jamesC, how can i fix it? is the thing not sealing correctly now since i took it apart??? should i get it from the dealership???
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Old Aug 12, 2007 | 02:01 AM
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From: M.D
Car: 1987 Camaro
Engine: 350 hsr
Transmission: 700R4(blown)
Axle/Gears: 3:73
Re: if it aint broke......... dont fix it!

i wana know too
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Old Aug 12, 2007 | 05:26 AM
  #6  
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: if it aint broke......... dont fix it!

Originally Posted by bigchief
jamesC, how can i fix it? is the thing not sealing correctly now since i took it apart??? should i get it from the dealership???
While the JY is a possibility, a new one would be the better call. Check with your dealership.

JamesC
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Old Aug 12, 2007 | 04:14 PM
  #7  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

well is it just the REAR piece thats the problem or the rubber piece in side with all the passages indented on it????
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Old Mar 19, 2009 | 12:18 PM
  #8  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

felt like bringing this one back to life.... still have the problem, couldnt find the part. any easy solutions?
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Old Mar 19, 2009 | 08:33 PM
  #9  
vette gator's Avatar
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From: Gainesville, FL
Car: 85 Z28
Engine: 305 TPI
Transmission: 700R4
Re: if it aint broke......... dont fix it!

I was able to find a replacement at Carquest a few months ago (part #207708). I think they had it under "vacuum control valve" or something similar.

Last edited by vette gator; Mar 20, 2009 at 06:27 PM.
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Old Mar 25, 2009 | 11:53 AM
  #10  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

is that just carquest.com? i dont see where to go on the main page, can you guide me? or should i give them a call? i dont have one of these stores by me
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Old Mar 26, 2009 | 09:20 PM
  #11  
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From: Gainesville, FL
Car: 85 Z28
Engine: 305 TPI
Transmission: 700R4
Re: if it aint broke......... dont fix it!

Originally Posted by bigchief
is that just carquest.com? i dont see where to go on the main page, can you guide me? or should i give them a call? i dont have one of these stores by me
I've never had any luck with a Carquest web site - I've always had to go to an actual store. I don't know if they sell over the internet, but it might be worth calling them to see. Other parts stores probably stock these as well, it's just that I usually go to Carquest.
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Old Mar 27, 2009 | 10:12 AM
  #12  
bigchief's Avatar
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

ok man, i found one in my area actually. i'll check it out, thanks a lot dude
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Old Mar 31, 2009 | 10:15 PM
  #13  
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From: Bloomfield, IN
Car: 87 Camaro
Engine: 305
Transmission: 700R4
Re: if it aint broke......... dont fix it!

Anyone found one yet? Have a part number?
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Old Mar 31, 2009 | 10:18 PM
  #14  
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From: sunny so cal.
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: if it aint broke......... dont fix it!

were you under the dash just before this happened? getting the hoses hooked up is a biach. do you still hear the fan? if you do its probably the vent hookups and not the controller.
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Old Apr 1, 2009 | 03:59 PM
  #15  
bigchief's Avatar
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Joined: Jun 2004
Posts: 741
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From: Long Island NY
Car: 1989 Firebird Formula
Engine: 5.7L 355 TPI
Transmission: 700 R4 with TCI rebuild kit and valve body mods
Re: if it aint broke......... dont fix it!

its not the hoses. thats why i said i plugged them manually and they worked fine.... its the control thats messed up
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