Vacuum lines replacement

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Aug 14, 2025 | 11:38 AM

sgare

Thread Starter

3rd Gear

Joined: Aug 2025

Posts: 3

Likes: 1

Vacuum lines replacement

In my 1989 F150 I have done a few repairs to the small plastic vacuum lines to get the heat/vent/defrost working in again, only to break later on somewhere else. I think it is time to replace them. I don't think those plastic lines are used these days and I think replacing with rubber ones is the way to go.
Any thoughts or advice on this?

1989 Ford F150 XLT Lariat

Aug 14, 2025 | 01:46 PM

mat-it

Mountain Pass

Joined: Jan 2005

Posts: 116

Likes: 31

From: Langley B.C.

I think silicone hose is better, probably 5/32 ID for some and 7/32 ID for other. Measure what you have for length needed. You could even get different colors to distinguish lines.

Aug 14, 2025 | 02:51 PM

sswari

Tuned

Joined: Jan 2021

Posts: 377

Likes: 81

Here is a possible supplier, I was at one point going to go this route, but as of now, my Vacuum lines seem to be pretty stable.

https://www.fluorostore.com/collections/products