Thread: HELP! Hissing sound after drilling though firewall

You could probably just tape it up really well since its just a vac line for the hvac. Unless you cut it up really bad

Originally Posted by Swiggles

You could probably just tape it up really well since its just a vac line for the hvac. Unless you cut it up really bad

See, here's the problem with that: that vacuum line connects to multiple spots and will cause issues. Fix it right the first time.

Originally Posted by SlowNA06

See, here's the problem with that: that vacuum line connects to multiple spots and will cause issues.

Its a straight line that runs from the tree to the HVAC. It doesnt connect to anything else. But I agree, fix it right. Get at least 8ft of vac line and rerun that line.

Originally Posted by KeithGTP03

Its a straight line that runs from the tree to the HVAC. It doesnt connect to anything else.

Whut?

The vacuum manifold connects to no less than the intake, brake booster, and bypass valve vacuum actuator, as well as the HVAC.

Originally Posted by SlowNA06

Whut?

The vacuum manifold connects to no less than the intake, brake booster, and bypass valve vacuum actuator, as well as the HVAC.

Yes, but the HVAC line runs directly from the manifold to the HVAC. You can just cap off the HVAC port on the manifold and it wont affect anything. You'll just have issues switching levels on your heater/ac.