Vacuum line for HVAC control cracked and broke at firewall
#1
08-29-2015, 09:50 AM
Join Date: Aug 2015
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Vacuum line for HVAC control cracked and broke at firewall
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!
What do I need to remove in order to replace the line that passes through the firewall?
Thanks guys!
#2
08-29-2015, 03:15 PM
Record Breaker
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.
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.
#3
08-29-2015, 04:29 PM
Join Date: Aug 2015
Posts: 14
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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.
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.
Any write ups on pulling the dash?
#4
08-29-2015, 05:31 PM
Record Breaker
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
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
Last edited by Spillage; 08-29-2015 at 05:36 PM. Reason: Added video
#5
08-30-2015, 11:09 PM
Join Date: Aug 2015
Posts: 14
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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).
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).
#6
08-31-2015, 06:59 AM
Record Breaker
#7
09-02-2015, 01:31 PM
Join Date: Aug 2015
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