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Old May 21, 2020 | 07:28 AM
  #1  
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hoses

hello
I bought a pontiac '88 gta.
I have these hoses to put in order
if you have pictures
i think red with yellow
thank you




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Old May 21, 2020 | 07:37 AM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: hoses

Rad (blue to green) coolant jug.
Yellow intake loops to orange or red tbody that exits at purple and goes to heater control valve that splits to heatercore and return line from heatercore.
White on the rad is the heatercore return line. Looks like you are missing the control valve and hard pipe on the frame rail.


Top port orange? on t-body feeds fresh air to pass valve cover.
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Old May 21, 2020 | 08:18 AM
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Re: hoses

ok thank you
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Old May 21, 2020 | 08:34 AM
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Re: hoses

looks like this?

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Old May 21, 2020 | 01:23 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: hoses

Yup.

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Old Nov 15, 2020 | 05:00 AM
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Re: hoses

hi
I bought a control valve
but I'm lost in the connections



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Old Nov 15, 2020 | 07:28 AM
  #7  
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From: Florida
Car: 1991 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3:42 Auburn
Re: hoses

If you don't live in a cold area you can bypass the TB hose. Just cap off #10 and #6.
#9 connects to #2 on the control valve. #4 will connect to the left side heater core inlet located above the pass side valve cover on the firewall.
#3 on the control valve will "T" into the hose that connects to the right side heater core. It runs from the right side outlet to the large (WHITE) fitting on your rad. As TTop says you are missing this hard pipe that would have the "T" connection.
Coolant tank is correct #11 connects to the small fitting on your rad (BLUE).
If you do not want to source the missing hard line from the heater core you can just bypass all of that and just go direct from #9 to the large fitting (White) on the rad. No need for the control valve.
I can't help on the hack job of the wires...ouch!



In this pic my clean air intake (#5) for the VC is capped off. I am using that small K&N filter in it's place. Normally a hose would run from it to a fitting in the VC.
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Old Nov 15, 2020 | 09:03 AM
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Re: hoses

thank you
#10 connects to #6 ?

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Old Nov 15, 2020 | 09:05 AM
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: hoses

10 and 6 should have nothing in them if you connect everything else that way. So you can cap them or leave them.
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Old Nov 15, 2020 | 09:21 AM
  #10  
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Re: hoses

originally how is the connection?
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Old Nov 15, 2020 | 09:28 AM
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Re: hoses

Originally Posted by jpontiac
hi
I bought a control valve
but I'm lost in the connections]
You very aptly numbered that last one as "13" since it is very unlucky. That line needs to be connected to "Port 5" on the throttle body, labeled in your other photo. That is the PCV valve air supply and it MUST be metered through the MAF, thus Port 5 should be the air source.
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Old Nov 15, 2020 | 09:52 AM
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: hoses

Originally Posted by jpontiac
originally how is the connection?
9 went to 10 with a short and special molded hose. 6 went to 2. That runs coolant through the TB and unless you're cold weather driving it, it's completely unnecessary and just a possible cause of a leak.
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Old Nov 15, 2020 | 10:20 AM
  #13  
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Re: hoses

2 choices


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Old Nov 15, 2020 | 10:31 AM
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From: Florida
Car: 1991 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3:42 Auburn
Re: hoses

Originally Posted by jpontiac
2 choices

This would be the proper routing for the way it was done originally. The only issue i see is do yo have a PCV valve on the drivers side VC? It should have a hose that goes into the base in between the runners on the drivers side. Green line in pic should be correct if you have a PCV valve.

Last edited by vinny R; Nov 15, 2020 at 10:37 AM.
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Old Nov 15, 2020 | 10:53 AM
  #15  
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Re: hoses

driver side


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Old Nov 15, 2020 | 12:09 PM
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: hoses

That appears to be just a breather. I'd recommend putting a pcv valve in place of that.
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Old Nov 15, 2020 | 02:39 PM
  #17  
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Re: hoses



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Old Nov 15, 2020 | 03:44 PM
  #18  
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Re: hoses

And the 1




This hose?

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Old Nov 16, 2020 | 07:02 AM
  #19  
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Car: 1991 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3:42 Auburn
Re: hoses

Originally Posted by jpontiac
And the 1




This hose?

It Is hard to tell from this photo but it appears to be cut. That does look like the proper vacuum connection for the control valve.

Last edited by vinny R; Nov 16, 2020 at 07:04 AM. Reason: info
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Old Nov 16, 2020 | 08:17 AM
  #20  
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Re: hoses

Originally Posted by aliceempire
That appears to be just a breather. I'd recommend putting a pcv valve in place of that.
Agreed. Since this is the first image we've seen of the left side, it would have been tough to guess how that was connected. That now raises concerns about the EGR valve and FPR connections, and the EVAP, and cruise, etc.
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Old Nov 16, 2020 | 08:27 AM
  #21  
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: hoses

Originally Posted by Vader
Agreed. Since this is the first image we've seen of the left side, it would have been tough to guess how that was connected. That now raises concerns about the EGR valve and FPR connections, and the EVAP, and cruise, etc.
Seeing the scotchlok connector on the TPS wiring is enough to make me concerned over everything.
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Old Nov 16, 2020 | 11:44 AM
  #22  
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Re: hoses




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Old Nov 16, 2020 | 12:01 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: hoses


Need this for the pass frame rail. Goes from rad then "Ts" up to the plastic valve and also back tot the heater core.
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Old Nov 16, 2020 | 12:14 PM
  #24  
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Re: hoses

Okay. for line 15? I'll see if I have it. I can install a "T"

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Old Nov 16, 2020 | 01:22 PM
  #25  
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Re: hoses

you have a picture of this connector?
I don't have the same colors



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Old Nov 16, 2020 | 07:49 PM
  #26  
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Re: hoses

Ouch. Someone really hacked to get that out of there.
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Old Nov 23, 2020 | 06:29 AM
  #27  
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Re: hoses

this hose goes here?


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Old Jan 16, 2021 | 06:26 AM
  #28  
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Re: hoses

hello
on your pontiac this pipe connected like that?

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Old Jan 21, 2021 | 07:54 PM
  #29  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: hoses

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Old Jan 22, 2021 | 02:20 AM
  #30  
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Re: hoses

Ok Thank you
I can remove the control valve
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