Need help with vacuum line
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More Turbo
Joined: Apr 2009
Posts: 633
Likes: 4
From: Edmonton, Ab
Need help with vacuum line
I have 2 vacuum lines coming out of the cab, I'm not sure where they go. I believe they might be for the heater? They are coming out of the cab through the firewall.
Does anyone know where they go?
1979 Supercab with A/C. Thanks
Does anyone know where they go?
1979 Supercab with A/C. Thanks
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
That's for the A/C control. The larger line goes to the vacuum reservior on the drivers side splash pan. The smaller line goes to the vacuum valve that controls the water flow to the heater core.
Click on the .pdf link to see the illustration from the parts catalog. The top illustration is 73-75, this one had three vacuum lines. The lower illustration is for '76-up and isn't as detailed as the top drawing.
Click on the .pdf link to see the illustration from the parts catalog. The top illustration is 73-75, this one had three vacuum lines. The lower illustration is for '76-up and isn't as detailed as the top drawing.
Thread Starter
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More Turbo
Joined: Apr 2009
Posts: 633
Likes: 4
From: Edmonton, Ab
Ok larger one to reservior-is that the one on under side of spalsh shield?
- where does it go from there?
I should have mentioned I just put this 429 I'm this truck. It has been stripped of all vacuum lines. It has a Performer RPM intake and Quick fuel carb. I hooled up the vac advance,that's it. I will look for vac control on heater box. Thanks.
- where does it go from there?
I should have mentioned I just put this 429 I'm this truck. It has been stripped of all vacuum lines. It has a Performer RPM intake and Quick fuel carb. I hooled up the vac advance,that's it. I will look for vac control on heater box. Thanks.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Ok larger one to reservior-is that the one on under side of spalsh shield?
- where does it go from there?
I should have mentioned I just put this 429 I'm this truck. It has been stripped of all vacuum lines. It has a Performer RPM intake and Quick fuel carb. I hooled up the vac advance,that's it. I will look for vac control on heater box. Thanks.
- where does it go from there?
I should have mentioned I just put this 429 I'm this truck. It has been stripped of all vacuum lines. It has a Performer RPM intake and Quick fuel carb. I hooled up the vac advance,that's it. I will look for vac control on heater box. Thanks.
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