1988 Camaro 305 restore questions
1988 Camaro 305 restore questions
I'm helping a friend with a 1988 camaro vin e 305 tbi restore. We are down to a few spots not knowing what connects to them. If anyone could help us identify these it would be really appreciated. I don't know why putting just the link and not the picture. I am new at this so if anyone can help I appreciate it.
Two black lines by back firewall

Two black lines by heater pipe on firewall

Sits on engine is by black tape. Need to know where the vacuum goes to

Finger points to question, how do I connect the two.

Finger points to question, sits along passenger side where to connect.

Finger points to question, where to connect from smog pump.

Finger points to question, where does this connect to.
Two black lines by back firewall

Two black lines by heater pipe on firewall

Sits on engine is by black tape. Need to know where the vacuum goes to

Finger points to question, how do I connect the two.

Finger points to question, sits along passenger side where to connect.

Finger points to question, where to connect from smog pump.

Finger points to question, where does this connect to.
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: 1988 Camaro 305 restore questions
pic #2: one should go to the header valve in pic #7 and the other one to the vacuum port on pic #3 (this same port is also used for cruise control)
pic #4 use a piece of rubber hose
pic #5 connect with a long rubber hose to port in pic #6
pic #4 use a piece of rubber hose
pic #5 connect with a long rubber hose to port in pic #6
Banned
Joined: Jun 2013
Posts: 24
Likes: 0
Car: 89 Iroc
Engine: 305
Transmission: 700r4
Axle/Gears: 3.23
Re: 1988 Camaro 305 restore questions
Your last pic, there should be a small black plastic vacuum hose coming out of the wirewall. It comes out near the heater blower box and goes to that heater diverter valve your pointing at. I don't think your heater will work without that vacuum.The very first pic you posted looks like the egr solenoid vacuum lines that connect to the egr solenoid which is located near the distributor.
Re: 1988 Camaro 305 restore questions
Thanks to all of you that helps a lot. I only have 2 lines left to figure out and they are the first picture. If anyone has a answer for them I would appreciate it.
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: 1988 Camaro 305 restore questions
Here are the best pictures I can get of the 4 black lines on the firewall that I am not sure where they need to be connected to.

Last edited by carousel56; Sep 10, 2013 at 09:52 AM. Reason: delete
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Re: 1988 Camaro 305 restore questions
Here is the best pictures I can get of the 4 black lines on the firewall. I Any help on where to connect them to would be appreciated.


The two longer lines go thru the firewall and connect to the gray and the purple line for the ac/heater control. The one you turn on for them to work. I cannot think of the name of it....been up too long. If someone can help with this by tomorrow afternoon it would be appreciated....getting frustrated. The two shorter lines we cannot figure out after they go into the car thru the firewall what they are connected to.

The two longer lines go thru the firewall and connect to the gray and the purple line for the ac/heater control. The one you turn on for them to work. I cannot think of the name of it....been up too long. If someone can help with this by tomorrow afternoon it would be appreciated....getting frustrated. The two shorter lines we cannot figure out after they go into the car thru the firewall what they are connected to.
Last edited by carousel56; Sep 12, 2013 at 04:24 AM.
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