Hey guys - I have no air flow out dash vents, only defrost. I know it's because of the vacuum line that complete disintegrated at the firewall. I pulled the glove box out and can't see anything at all - only the green line going to the fresh air actuator.

What do I need to remove in order to replace the line that passes through the firewall?

Thanks guys!

 

The vac line goes through the firewall with the A/C lines.
You have to pull the dash and the HVAC to run a new line (not fun).

If you carefully look where the line went through the firewall, you might find the tail of where it broke off, and be able to retrieve it with some needle-nose pliers.
You only need to pull out an 1" or so, and that will be enough to join it back up.

Get some 1/8"ID rubber tubing and make a sleeve (2" long will do)... wipe a small amount of silicone sealant on the outside of the plastic tube and slide the joint together... give it time to setup, then push it back in so the rubber is at the firewall, so the plastic doesn't chaff through again.

This worked a treat for me, and others here have done the same.

 

Thanks - yeah the problem is that the line is revealed on the engine side of the firewall, but it's all cracked and brittle. A piece broke off and I can bend it barely at all and it'll just snap in two. Sucks.

Any write ups on pulling the dash?

 

Quit snapping bits off (making it shorter), and gently pull the slack through.
The engine bay side is brittle due to age and heat... inside the cab it is not as bad since it didn't get engine heat baking it.
Pull it through while you can (you're luck you have something to get hold of).
You do not want to be pulling the dash and HVAC to do the job, as that is not a quick and easy job, and at this point your dash will likely disintegrate as you try to take it out.
There are plenty of dash stories on this site if you search (search is your friend).

Here's a youtube video

 

Thanks - how much slack do you think is on the other side? I only have about an inch sticking out. I did pull on it and am convinced there ain't much slack in it.

 

There isn't much... maybe 1".

 

Yeah I am willing to bet the slack was pulled out of this vac line once before... she's not budgin'

 

09-02-2015... Yes, This is an old thread but it just happened to me...

Can I just cut a larger hole in the firewall to fish the hose out? Is it tied or loomed in the dash?
Is the hose attached to anything before it gets to the climate control module?

Since my dash panel is completely deteriorated, can I just pull the supply hose free and reroute it thru a new spot of the firewall?

 

If you can get your hand on the broken off end, shove it back out the hole some, use some vacuum hose the right size to splice it back together. Should be enough slack for that.

 

HeyYou,
Thanx!
I'll give it a try.
Did find THIS