lt1 swap in progress

[monte51087]

Hi everyone,
im in the process of finishing the swap, i cant seem to figure out were to connect the heater hose vent lines any help would be great thanks, and will post pics

 

[monte51087]

i guess there the hvac line that need air pressure to open and close

 

[monte51087]

anyone?

 

[tc1959]

 

[RITTER]

Are you referring to the heater control valve :?: That is a vacuum line. Just tie in to any available vacuum port and you should be good

 

[Randy_W]

I've done 5 LT1 swaps and I have no real idea what you mean. There is a bleeder valve, that can be bypassed and the air bled at other places and there is hose from the back of the engine that can go there or any one of several other places depending on your situation, Most of these are somewhat flexible in exactly how you connect them as long as they do their jobs. A pic would really help. :wink:

 

[monte51087]

let me take some pictures then i will post thanks

 

[monte51087]

ok so i got pic now

 

[monte51087]

the purple and brownish hose is the first question i was asking about, now the second pic is another question i have . Its from the factory harness that i want to know what is goes too?

 

[darbysan]

The purple line is the vacuum line to the HVAC controls. It is usually attached to the round vacuum ball, which in turn get's it's vacuum from the manifold with a check valve in line to hold the vacuum. The cruise control uses this source of vacuum as well. The grey line comes from the HVAC controls to the Water Valve on the heater inlet line. It shuts off the flow of water to the core when Max AC is on and Max Cold temp. No vacuum to this valve = hot water through the core.

The 4 conductor connector looks like the AC/blower power connector. Brings power to the HVAC relay, and power out to the AC compressor clutch.