Vacuum hose size 1991 Cutlass Supreme

[ancorder]

Like the title says, I'm wondering if anyone can tell me what size the vacuum lines are in the 1991 Cutlass Supreme 3.1. I am fairly sure that I have a vacuum leak somewhere, and I've been thinking about replacing lines for a while.

 

This weekend I am going out of town (because I don't have a garage) to replace all these vacuum lines. I'm going to a tiny town that has no auto parts store within 55 miles, so I must have everything with me when I go.

 

What size are the lines? Replacing them with rubber will be okay, right? Are there various diameters or just one standard size? Anyone know approximately what total length I will need? And will I need any connectors/tees or anything?

 

(Would have searched but search function hasn't worked for me in months.)

 

Thanks, everyone. Cheers.

[BXX]

GM still offers the prefabbed lines. They were never that expensive at all.

 

As for the size of them, I dunno, but im sure someone here does.

[ancorder]

I guess I could call a dealer and try to special order them. (The one GM dealer I've talked to in the past wants nothing to do with Oldsmobiles, though.) But when I had the brake booster replaced last year I asked the shop how much it would take to replace all the vac lines, and they quoted me about $120 for the lines themselves, plus installation. I've got to think it'd be much cheaper to buy 15 feet of vac line from Autozone or whatever.

[AL]

Well there are multiple sizes and bends in each line that generic vacuum hoses just don't work for... If you wanna save money don't have them install the lines and sell you just the part as an hour of labor is around 78 bucks

[ancorder]

Right, I wouldn't have the shop put them on. It can't be that complicated. But I still can't justify spending over $100 on the lines themselves.

 

I can't imagine bends being a problem, since I'd be using flexible hose. I could find some way to route things. Surely the multiple diameters aren't on the same lines? Even if so, I could simply use a fitting/coupling that changes from one size to another.

 

There has got to be another option. Surely someone has replaced their vacuum lines with the flexible hose from Napa.

[AL]

You said the $115 was the installed price right? Well if its an hour to install, then they should be about 25 bucks for the lines

[ancorder]

No, that was for the lines themselves.

[AL]

Oh... I read wrong